https://www.uni-weimar.de/kunst-und-gestaltung/wiki/api.php?action=feedcontributions&feedformat=atom&user=Frederic+Schmidt 2026-04-04T06:56:07Z User contributions MediaWiki 1.39.6 https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=GMU:Design_with_Fungi_/_Frederic_Schmidt_/_Dokumentation&diff=137647 2024-04-22T13:56:57Z

<p>Frederic Schmidt: </p> <hr /> <div>Find 3 art projects /Products that use microorganisms and present the Why/What/How in a minute. (group work 2 people)<br /> <br /> Think about a own Project/Product that you also present to the course.<br /> <br /> <br /> 1. https://www.grown.bio/de/produkt/konus-lampe/?v=3a52f3c22ed6<br /> <br /> Why: You want to be sustainable while bringing cozy and modern light to your home.<br /> <br /> What: Use a specially cultivated mycelium lamp shade that is produced with a very low use of energy and is also handmade within 4 - 10 days.<br /> <br /> How: The lamp shade is produced with a very low use of energy and is also handmade within 4 - 10 days, it will grow into shape and is then assembled with the electronics. The shade can be removed easily and also changed to a different shape, it is compostable as well. <br /> <br /> <br /> 2. http://www.oliverk.org/art-projects/research/slime-mold-oracle<br /> <br /> Why: You have trouble making decisions and usually use the help of an oracle to get along with this?<br /> <br /> What: Use a slime mold to help you make your decisions.<br /> <br /> How: Prepare a oat meal for the mold that he/she can reach with the same circumstances like distance and amount and so on. Label the two or more directions (oat meals) with the options you have and let the slime mold help with your decision. Believe in the decision the slime mold made for you.<br /> <br /> <br /> Own project/idea: <br /> <br /> Why: Need a new kind of interface that gives data, impulses, output that you can use as a source for different artistical aproaches in Music, Visual, Mecanical kinetic...<br /> <br /> What: Interface between enviroment, Slime Mold and devices that use CV in shape of a box with electrical connections leading out to get the electrical impulses. <br /> <br /> How: The box is transparent but can be covered to keep the light away and has the ability to open small chambers with things like water, food, critical materials, that have an effect on the slime mold...the reaction will be measured and can be used via the electrical output that can be hocked up to different devices.<br /> <br /> == [https://www.gp-award.com/de/produkte/compodry CompoDry – Demontage durch Kompostierung]==<br /> <br /> *The lifetime of small electrical devices is still short and the process of recycling the components is not worthwhile. Improving the recycling-process of electronic devices.<br /> *Two principles were pursued here: Firstly, as many non-electrical components as possible should be compostable. Secondly, electrical parts and components made of different metals should be separated through a rotting process so that they can be reused or collected by type.<br /> *This work explores the use of compostable materials in small electrical devices and tries to answer the question: &lt;br&gt;what if, at the end of a biodegradation process, only components made of recyclable materials remained that could be reused or collected separately.<br /> *Mycel is ideal for printed circuits boards because it is electrically insulating, heat-resistant up to 250°C.</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=GMU:Design_with_Fungi_/_Frederic_Schmidt_/_Dokumentation&diff=137627 2024-04-22T13:30:24Z

<p>Frederic Schmidt: </p> <hr /> <div>Find 3 art projects /Products that use microorganisms and present the Why/What/How in a minute. (group work 2 people)<br /> <br /> Think about a own Project/Product that you also present to the course.<br /> <br /> <br /> 1. https://www.grown.bio/de/produkt/konus-lampe/?v=3a52f3c22ed6<br /> <br /> Why: You want to be sustainable while bringing cozy and modern light to your home.<br /> <br /> What: Use a specially cultivated mycelium lamp shade that is produced with a very low use of energy and is also handmade within 4 - 10 days.<br /> <br /> How: The lamp shade is produced with a very low use of energy and is also handmade within 4 - 10 days, it will grow into shape and is then assembled with the electronics. The shade can be removed easily and also changed to a different shape, it is compostable as well. <br /> <br /> <br /> 2. http://www.oliverk.org/art-projects/research/slime-mold-oracle<br /> <br /> Why: You have trouble making decisions and usually use the help of an oracle to get along with this?<br /> <br /> What: Use a slime mold to help you make your decisions.<br /> <br /> How: Prepare a oat meal for the mold that he/she can reach with the same circumstances like distance and amount and so on. Label the two or more directions (oat meals) with the options you have and let the slime mold help with your decision. Believe in the decision the slime mold made for you.<br /> <br /> <br /> Own project/idea: <br /> <br /> Why: Need a new kind of interface that gives data, impulses, output that you can use as a source for different artistical aproaches in Music, Visual, Mecanical kinetic...<br /> <br /> What: Interface between enviroment, Slime Mold and devices that use CV in shape of a box with electrical connections leading out to get the electrical impulses. <br /> <br /> How: The box is transparent but can be covered to keep the light away and has the ability to open small chambers with things like water, food, critical materials, that have an effect on the slime mold...the reaction will be measures and can be used via the electrical output that can be hocked up to different devices.<br /> <br /> == [https://www.gp-award.com/de/produkte/compodry CompoDry – Demontage durch Kompostierung]==<br /> <br /> *The lifetime of small electrical devices is still short and the process of recycling the components is not worthwhile. Improving the recycling-process of electronic devices.<br /> *Two principles were pursued here: Firstly, as many non-electrical components as possible should be compostable. Secondly, electrical parts and components made of different metals should be separated through a rotting process so that they can be reused or collected by type.<br /> *This work explores the use of compostable materials in small electrical devices and tries to answer the question: &lt;br&gt;what if, at the end of a biodegradation process, only components made of recyclable materials remained that could be reused or collected separately.<br /> *Mycel is ideal for printed circuits boards because it is electrically insulating, heat-resistant up to 250°C.</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=GMU:Design_with_Fungi_/_Frederic_Schmidt_/_Dokumentation&diff=137626 2024-04-22T13:29:55Z

<p>Frederic Schmidt: </p> <hr /> <div>Find 3 art projects /Products that use microorganisms and present the Why/What/How in a minute. (group work 2 people)<br /> <br /> Think about a own Project/Product that you also present to the course.<br /> <br /> <br /> 1. https://www.grown.bio/de/produkt/konus-lampe/?v=3a52f3c22ed6<br /> <br /> Why: You want to be sustainable while bringing cozy and modern light to your home.<br /> <br /> What: Use a specially cultivated mycelium lamp shade that is produced with a very low use of energy and is also handmade within 4 - 10 days.<br /> <br /> How: The lamp shade is produced with a very low use of energy and is also handmade within 4 - 10 days, it will grow into shape and is then assembled with the electronics. The shade can be removed easily and also changed to a different shape, it is compostable as well. <br /> <br /> <br /> 2. http://www.oliverk.org/art-projects/research/slime-mold-oracle<br /> <br /> Why: You have trouble making decisions and usually use the help of an oracle to get along with this?<br /> <br /> What: Use a slime mold to help you make your decisions.<br /> <br /> How: Prepare a oat meal for the mold that he/she can reach with the same circumstances like distance and amount and so on. Label the two or more directions (oat meals) with the options you have and let the slime mold help with your decision. Believe in the decision<br /> <br /> <br /> Own project/idea: <br /> <br /> Why: Need a new kind of interface that gives data, impulses, output that you can use as a source for different artistical aproaches in Music, Visual, Mecanical kinetic...<br /> <br /> What: Interface between enviroment, Slime Mold and devices that use CV in shape of a box with electrical connections leading out to get the electrical impulses. <br /> <br /> How: The box is transparent but can be covered to keep the light away and has the ability to open small chambers with things like water, food, critical materials, that have an effect on the slime mold...the reaction will be measures and can be used via the electrical output that can be hocked up to different devices.<br /> <br /> == [https://www.gp-award.com/de/produkte/compodry CompoDry – Demontage durch Kompostierung]==<br /> <br /> *The lifetime of small electrical devices is still short and the process of recycling the components is not worthwhile. Improving the recycling-process of electronic devices.<br /> *Two principles were pursued here: Firstly, as many non-electrical components as possible should be compostable. Secondly, electrical parts and components made of different metals should be separated through a rotting process so that they can be reused or collected by type.<br /> *This work explores the use of compostable materials in small electrical devices and tries to answer the question: &lt;br&gt;what if, at the end of a biodegradation process, only components made of recyclable materials remained that could be reused or collected separately.<br /> *Mycel is ideal for printed circuits boards because it is electrically insulating, heat-resistant up to 250°C.</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=GMU:Design_with_Fungi_/_Frederic_Schmidt_/_Dokumentation&diff=137621 2024-04-22T13:25:21Z

<p>Frederic Schmidt: </p> <hr /> <div>Find 3 art projects /Products that use microorganisms and present the Why/What/How in a minute. (group work 2 people)<br /> <br /> Think about a own Project/Product that you also present to the course.<br /> <br /> <br /> 1. https://www.grown.bio/de/produkt/konus-lampe/?v=3a52f3c22ed6<br /> <br /> Why: You want to be sustainable while bringing cozy and modern light to your home.<br /> <br /> What: Use a specially cultivated mycelium lamp shade that is produced with a very low use of energy and is also handmade within 4 - 10 days.<br /> <br /> How: The lamp shade is produced with a very low use of energy and is also handmade within 4 - 10 days, it will grow into shape and is then assembled with the electronics. <br /> <br /> <br /> 2. http://www.oliverk.org/art-projects/research/slime-mold-oracle<br /> <br /> Why: You have trouble making decisions and usually use the help of an oracle to get along with this?<br /> <br /> What: Use a slime mold to help you make your decisions.<br /> <br /> How: Prepare a oat meal for the mold that he/she can reach with the same circumstances like distance and amount and so on. Label the two or more directions (oat meals) with the options you have and let the slime mold help with your decision. Believe in the decision<br /> <br /> <br /> Own project/idea: <br /> <br /> Why: Need a new kind of interface that gives data, impulses, output that you can use as a source for different artistical aproaches in Music, Visual, Mecanical kinetic...<br /> <br /> What: Interface between enviroment, Slime Mold and devices that use CV in shape of a box with electrical connections leading out to get the electrical impulses. <br /> <br /> How: The box is transparent but can be covered to keep the light away and has the ability to open small chambers (still sterile) with things like water, food, critical materials, that have an effect on the slime mold. The reaction will be measures and can be used via the electrical output that can be hocked up to different devices as CV (Control Voltage)<br /> <br /> == [https://www.gp-award.com/de/produkte/compodry CompoDry – Demontage durch Kompostierung]==<br /> <br /> *The lifetime of small electrical devices is still short and the process of recycling the components is not worthwhile. Improving the recycling-process of electronic devices.<br /> *Two principles were pursued here: Firstly, as many non-electrical components as possible should be compostable. Secondly, electrical parts and components made of different metals should be separated through a rotting process so that they can be reused or collected by type.<br /> *This work explores the use of compostable materials in small electrical devices and tries to answer the question: &lt;br&gt;what if, at the end of a biodegradation process, only components made of recyclable materials remained that could be reused or collected separately.<br /> *Mycel is ideal for printed circuits boards because it is electrically insulating, heat-resistant up to 250°C.</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=GMU:Design_with_Fungi_/_Frederic_Schmidt_/_Dokumentation&diff=137616 2024-04-22T13:19:53Z

<p>Frederic Schmidt: Created page with &quot;Find 3 art projects /Products that use microorganisms and present the Why/What/How in a minute. (group work 2 people) Think about a own Project/Product that you also present to the course. 1. https://www.grown.bio/de/produkt/konus-lampe/?v=3a52f3c22ed6 Why: You want to be sustainable while bringing cozy and modern light to your home. What: Use a specially cultivated mycelium lamp shade that is produced with a very low use of energy and is also handmade within 4 - 10...&quot;</p> <hr /> <div>Find 3 art projects /Products that use microorganisms and present the Why/What/How in a minute. (group work 2 people)<br /> <br /> Think about a own Project/Product that you also present to the course.<br /> <br /> <br /> 1. https://www.grown.bio/de/produkt/konus-lampe/?v=3a52f3c22ed6<br /> <br /> Why: You want to be sustainable while bringing cozy and modern light to your home.<br /> <br /> What: Use a specially cultivated mycelium lamp shade that is produced with a very low use of energy and is also handmade within 4 - 10 days.<br /> <br /> How: The lamp shade is produced with a very low use of energy and is also handmade within 4 - 10 days, it will grow into shape and is then assembled with the electronics. <br /> <br /> <br /> 2. http://www.oliverk.org/art-projects/research/slime-mold-oracle<br /> <br /> Why: You have trouble making decisions and usually use the help of an oracle to get along with this?<br /> <br /> What: Use a slime mold to help you make your decisions.<br /> <br /> How: Prepare a oat meal for the mold that he/she can reach with the same circumstances like distance and amount and so on. Label the two or more directions (oat meals) with the options you have and let the slime mold help with your decision. Believe in the decision<br /> <br /> <br /> Own project/idea: <br /> <br /> Why: Need a new kind of interface that gives data, impulses, output that you can use as a source for different artistical aproaches in Music, Visual, Mecanical kinetic...<br /> <br /> What: Interface between enviroment, Slime Mold and devices that use CV in shape of a box with electrical connections leading out to get the electrical impulses. <br /> <br /> How: The box is transparent but can be covered to keep the light away and has the ability to open small chambers with things like water, food, critical materials, that have an effect on the slime mold...the reaction will be measures and can be used via the electrical output that can be hocked up to different devices.</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=GMU:Diy_biolab_drivers_license_SoSe24&diff=137584 2024-04-22T11:46:25Z

<p>Frederic Schmidt: bla</p> <hr /> <div>''Credits:'' 2 [[SWS]]<br /> <br /> ''Venue:'' Marienstraße 5, room 202/204<br /> <br /> ''Lecturer(s):'' Alessandro Volpato (Mentoring: Prof. Ursula Damm)<br /> <br /> <br /> ''First meeting:'' Apr. 15th 2024<br /> <br /> Day 1 Apr. 15th 2024, 9:15 - 12:30 and 13:30 - 16:45<br /> <br /> Day 2 Apr. 22nd 2024, 9:15 - 12:30 and 13:30 - 16:45<br /> <br /> <br /> The course serves as introduction to the DIY BioLab and its routine.<br /> <br /> Main topics will be:<br /> <br /> - Safety in the BioLab<br /> <br /> - Introduction to lab equipment<br /> <br /> - Introduction to lab organisms, setting and taking care of cultures<br /> <br /> - Drafting and conceiving projects involving biological agents<br /> <br /> <br /> '''Student's documentation'''<br /> <br /> [[GMU:Design with Fungi / Alessandro Volpato / Myco-Tetris|Alessandro Volpato - Myco-Tetris]]<br /> <br /> [[GMU:Design with Fungi / Herr Müller / TheProject|Herr Müller - The Project]]<br /> <br /> [[GMU:Design with Fungi / Frederic Schmidt / Dokumentation|Frederic Schmidt - Dokumentation]]<br /> <br /> [[User:Mojjo/BioLab|Mojjo Krenz]]<br /> <br /> [[GMU:Design with Microorganisms/ Lucy and Hanna / TheProject|Lucy and Hanna - Project]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=GMU:Diy_biolab_drivers_license_SoSe24&diff=137582 2024-04-22T11:44:38Z

<p>Frederic Schmidt: </p> <hr /> <div>''Credits:'' 2 [[SWS]]<br /> <br /> ''Venue:'' Marienstraße 5, room 202/204<br /> <br /> ''Lecturer(s):'' Alessandro Volpato (Mentoring: Prof. Ursula Damm)<br /> <br /> <br /> ''First meeting:'' Apr. 15th 2024<br /> <br /> Day 1 Apr. 15th 2024, 9:15 - 12:30 and 13:30 - 16:45<br /> <br /> Day 2 Apr. 22nd 2024, 9:15 - 12:30 and 13:30 - 16:45<br /> <br /> <br /> The course serves as introduction to the DIY BioLab and its routine.<br /> <br /> Main topics will be:<br /> <br /> - Safety in the BioLab<br /> <br /> - Introduction to lab equipment<br /> <br /> - Introduction to lab organisms, setting and taking care of cultures<br /> <br /> - Drafting and conceiving projects involving biological agents<br /> <br /> <br /> '''Student's documentation'''<br /> <br /> [[GMU:Design with Fungi / Alessandro Volpato / Myco-Tetris|Alessandro Volpato - Myco-Tetris]]<br /> <br /> [[GMU:Design with Fungi / Herr Müller / TheProject|Herr Müller - The Project]]<br /> <br /> [[GMU:Design with Fungi / Frederic Schmidt / TheProject|Frederic Schmidt - Dokumentation]]<br /> <br /> [[User:Mojjo/BioLab|Mojjo Krenz]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=GMU:Diy_biolab_drivers_license_SoSe24&diff=137554 2024-04-15T13:19:41Z

<p>Frederic Schmidt: </p> <hr /> <div>''Credits:'' 2 [[SWS]]<br /> <br /> ''Venue:'' Marienstraße 5, room 202/204<br /> <br /> ''Lecturer(s):'' Alessandro Volpato (Mentoring: Prof. Ursula Damm)<br /> <br /> <br /> ''First meeting:'' Apr. 15th 2024<br /> <br /> Day 1 Apr. 15th 2024, 9:15 - 12:30 and 13:30 - 16:45<br /> <br /> Day 2 Apr. 22nd 2024, 9:15 - 12:30 and 13:30 - 16:45<br /> <br /> <br /> The course serves as introduction to the DIY BioLab and its routine.<br /> <br /> Main topics will be:<br /> <br /> - Safety in the BioLab<br /> <br /> - Introduction to lab equipment<br /> <br /> - Introduction to lab organisms, setting and taking care of cultures<br /> <br /> - Drafting and conceiving projects involving biological agents<br /> <br /> <br /> '''Student's documentation'''<br /> <br /> [[GMU:Design with Fungi / Alessandro Volpato / Myco-Tetris|Alessandro Volpato - Myco-Tetris]]<br /> <br /> [[GMU:Design with Fungi / Herr Müller / TheProject|Herr Müller - The Project]]<br /> <br /> [[GMU:Design with Fungi / Frederic Schmidt / TheProject|Frederic Schmidt - The Project]]<br /> <br /> [[User:Mojjo/BioLab|Mojjo Krenz]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137321 2024-02-20T12:37:51Z

<p>Frederic Schmidt: </p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> == The Pitchman ==<br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing.<br /> <br /> With the potentiometer, you can change the resistance and so the speed (Pitch).<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic 2.png|left|thumb|398x398px|circuit schematic]]I used only four buttons and potentiometers and did the wiring the same way as shown in the picture to the left, if you click on the picture, you'll see a bigger version and also the tiny descriptions become more visible.<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> For my version, I made some kind of handheld thing with all the buttons and potentiometers inside a transparent cassette case.<br /> [[File:Handheld pitch trigger.png|left|thumb|1003x1003px|handheld pitch trigger with pitch set]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Use of spacers.png|left|thumb|use of spacers]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> The buttons were sourced from an old children's toy that I also found at the recycling facility, the potentiometers were ordered in a set online with different values.<br /> <br /> At the end, I was able to set different speeds with the potentiometers and trigger them with the four buttons individually. <br /> <br /> ===== TAPES: =====<br /> I used a tape with recordings of bird voices that sounded very weird but still like birds but different species, if you pitch them up and down. I also used a tape loop with only one synth-sine-wave on it that I was able to pitch up and down to a specific tone with the help of a guitar tuner. <br /> <br /> If you use two buttons, the values are added to each other and you can play some kind of portamento.<br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Video Pitchman.mp4|thumb|Video Pitchman|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> == The book of repetitions ==<br /> For the book of repetitions, I sourced a small PCB of an old children's toy that was used to record and play back ca. 10 sec of sound controlled by two buttons, one to record as long as you hold it down and one to play back. The recording function also used a beep sound to indicate start and end of the recording.<br /> <br /> To make it more fun, I used a technique called [https://de.wikipedia.org/wiki/Circuit_bending circuit bending] and did some research on this. <br /> <br /> I found out, that this small PCBs of children's toys, with the ability of playing back sounds (also if they are fixed and not changeable), are using some kind of oscillator as a reference for the playback speed. You'll find it under the black dot on the PCB. I poked around with some wires and soon found the right spot to install a bend. I connected a small resistor next to the playback circuit to &quot;high&quot; (positive pole) and it resulted in faster playback. I couldn't find a bend to make it slow down (pitch down) but I found an other way to pitch down (slow down), wich I'll explain later. *[[File:PCB .png|left|thumb|PCB]] <br /> <br /> Since the &quot;hard wired&quot; connection is only able to make the playback very fast or normal (if not connected), I needed to find a way to get different resistances. One common way to do this is, to simply touch the contacts with your finger. Moving and pressing changes the resistance and also the current that is flowing and at the end the speed of playback and so the pitch. I extended the wires of the bend I found and connected them to a rubber pushbutton where i removed the coating from and scratched the PCB so the copper contacts are exposed to touch. <br /> <br /> [[File:Case front with drilled holes.png|thumb|case front with drilled holes]]<br /> At the end, I putted the bended circuit in a happy meal plastic book and installed all the necessary components in the book casing. I also added two screws to be able to push the buttons from outside, when the book case is closed.[[File:Install in book case with battery pack.png|left|thumb|install in case]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Headphone jack.png|thumb|headphone jack]]<br /> The most important modification was also to add a 3.5mm headphone jack to the toy/instrument/machine so you can hook it up to external gear and a small potentiometer as a Volume control. When it's hooked up to an amplifier or if you use it with headphones. It's the small yellow thing.<br /> [[File:Volume pot.png|left|thumb|volume pot]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> &lt;nowiki&gt;*&lt;/nowiki&gt;If you record something in the pitched up state, with your finger pressed on the open contacts and then remove them, it will be pitched down.<br /> <br /> If you make a recording and keep the play button pushed down, it will loop the playback.<br /> <br /> sometimes it's also distorting the sound and there are happy accidents happening sometimes. ;)<br /> [[File:Video The book of repetitions.mp4|left|thumb|Video The book of repetitions]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137320 2024-02-20T12:34:19Z

<p>Frederic Schmidt: </p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> == The Pitchman ==<br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing.<br /> <br /> With the potentiometer, you can change the resistance and so the speed (Pitch).<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic 2.png|left|thumb|398x398px|circuit schematic]]I used only four buttons and potentiometers and did the wiring the same way as shown in the picture to the left, if you click on the picture, you'll see a bigger version and also the tiny descriptions become more visible.<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> For my version, I made some kind of handheld thing with all the buttons and potentiometers inside a transparent cassette case.<br /> [[File:Handheld pitch trigger.png|left|thumb|1003x1003px|handheld pitch trigger with pitch set]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Use of spacers.png|left|thumb|use of spacers]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> The buttons were sourced from an old children's toy that I also found at the recycling facility, the potentiometers were ordered in a set online with different values.<br /> <br /> At the end, I was able to set different speeds with the potentiometers and trigger them with the four buttons individually. <br /> <br /> ===== TAPES: =====<br /> I used a tape with recordings of bird voices that sounded very weird but still like birds but different species, if you pitch them up and down. I also used a tape loop with only one synth-sine-wave on it that I was able to pitch up and down to a specific tone with the help of a guitar tuner. <br /> <br /> If you use two buttons, the values are added to each other and you can play some kind of portamento.<br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Video Pitchman.mp4|thumb|Video Pitchman|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> == The book of repetitions ==<br /> For the book of repetitions, I sourced a small PCB of an old children's toy that was used to record and play back ca. 10 sec of sound controlled by two buttons, one to record as long as you hold it down and one to play back. The recording function also used a beep sound to indicate start and end of the recording.<br /> <br /> To make it more fun, I used a technique called [https://de.wikipedia.org/wiki/Circuit_bending circuit bending] and did some research on this. <br /> <br /> I found out, that this small PCBs of children's toys, with the ability of playing back sounds (also if they are fixed and not changeable), are using some kind of oscillator as a reference for the playback speed. You'll find it under the black dot on the PCB. I poked around with some wires and soon found the right spot to install a bend. I connected a small resistor next to the playback circuit to &quot;high&quot; (positive pole) and it resulted in faster playback. I couldn't find a bend to make it slow down (pitch down) but I found an other way to pitch down (slow down), wich I'll explain later. *[[File:PCB .png|left|thumb|PCB]] <br /> <br /> Since the &quot;hard wired&quot; connection is only able to make the playback very fast or normal (if not connected), I needed to find a way to get different resistances. One common way to do this is, to simply touch the contacts with your finger. Moving and pressing changes the resistance and also the current that is flowing and at the end the speed of playback and so the pitch. I extended the wires of the bend I found and connected them to a rubber pushbutton where i removed the coating from and scratched the PCB so the copper contacts are exposed to touch. <br /> <br /> [[File:Case front with drilled holes.png|thumb|case front with drilled holes]]<br /> At the end, I putted the bended circuit in a happy meal plastic book and installed all the necessary components in the book casing. I also added two screws to be able to push the buttons from outside, when the book case is closed.[[File:Install in book case with battery pack.png|left|thumb|install in case]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Headphone jack.png|thumb|headphone jack]]<br /> The most important modification was also to add a 3.5mm headphone jack to the toy/instrument/machine and a small Potentiometer as a Volume control, when its hooked up to a amplifier or if you use it with headphones, its the small yellow thing.<br /> [[File:Volume pot.png|left|thumb|volume pot]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> &lt;nowiki&gt;*&lt;/nowiki&gt;If you record something in the pitched up state, with your finger pressed on the open contacts and then remove them, it will be pitched down.<br /> <br /> If you make a recording and keep the play button pushed down, it will loop the playback.<br /> <br /> sometimes it's also distorting the sound and there are happy accidents happening sometimes. ;)<br /> [[File:Video The book of repetitions.mp4|left|thumb|Video The book of repetitions]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=GMU:Tired_Machines_Orchestra&diff=137216 2024-02-14T19:47:47Z

<p>Frederic Schmidt: </p> <hr /> <div><br /> [[:Category:Fachmodul|Werk/Fachmodul]]<br /> <br /> ''Lecturer:'' [[Christian Doeller]]<br /> <br /> ''Credits:'' 6 [[ECTS]], 2 [[SWS]]<br /> <br /> ''Dates:'' October 20-22, November 3-5<br /> <br /> ''Times:'' Friday 9:30 - 17:00, Saturday / Sunday 13:00 - 17:00<br /> <br /> ''Venue:'' DIY Electronics Lab, Bauhausstr. 15, basement<br /> <br /> ''First meeting:'' October 20, 9.30 (excursion)<br /> <br /> Soundfiles: https://cloud.uni-weimar.de/s/pz4rJE4Ky4C94Mw<br /> <br /> &lt;u&gt;Video Link:&lt;/u&gt; https://www.youtube.com/watch?v=-eGINgA--p8&amp;ab_channel=KTL011<br /> <br /> <br /> [[File:TMO-banner-2-doeller.jpg|frameless|1080x1080px]]<br /> <br /> <br /> <br /> &lt;u&gt;Description:&lt;/u&gt;<br /> [[File:DSC05266 CD small.jpg|alt=Tired Machines Orchestra - Work in Progress|thumb|474x474px|Tired Machines Orchestra - Work in Progress]]<br /> Tired machines, exhausted, worn out and carelessly discarded on the garbage dumps of our consumer paradises find their way into a new, cultivated afterlife. They play the first violins, flutes and basses of a post-apocalyptic ensemble, the Tired Machines Orchestra.<br /> <br /> This course is for anyone who feels sorry for technical devices on the margins of society; for hardware hackers, tinkerers, musicians, DIY electronic enthusiasts, and anyone who wants to become one. Plunder your basements and bring your unloved or broken cassette players, kitchen appliances, printers, hair dryers or fans, disassemble them and turn them into soundful musical instruments.<br /> <br /> This is a hands-on course. We will explore fundamentals of DIY-electronics, sensing, and microcontroller programming; look at upcycling, destruction, transformation, and recovery processes; and examine sustainable strategies in media art. As part of the seminar, we will go on a field trip to a local electronics recycling company. There we will learn about the process of disposing and recycling e-waste and go on the hunt for materials to experiment with.<br /> <br /> Tired Machines Orchestra is a block module that will take place over two weekends (October 20-22, November 3-5). Prototypes are to be developed independently in between our meetings. Requirements: Punctuality, regular attendance and a fascination for electronics, sound experiments and tinkering. Open to all disciplines, no prior knowledge necessary.<br /> <br /> The finale of the course will be a collective concert. [https://www.youtube.com/watch?v=SCmc1b0Kx9A CONCERT OF THE TIRED MACHINES]<br /> <br /> <br /> <br /> &lt;u&gt;Participants:&lt;/u&gt;<br /> *[[AMELIA EICKHOFF]]<br /> *[[User:BlancaRodriguez|Blanca Rodriguez]]<br /> *[[Parisa Salimi]]<br /> *[[Aleena Raza]]<br /> *[[Frederic Schmidt]]<br /> *...<br /> &lt;gallery mode=&quot;nolines&quot;&gt;<br /> File:CD 08185 CD small.jpg<br /> File:CD 08127 CD small.jpg<br /> File:CD 08169 CD small.jpg<br /> File:CD 08053 CD small.jpg<br /> File:CD 08140 CD small.jpg<br /> File:CD 08158 CD small.jpg<br /> File:CD 08160 CD small.jpg<br /> File:CD 08145 CD small.jpg<br /> File:CD 08149 CD small.jpg<br /> File:CD 08093 CD small.jpg<br /> File:CD 08075 CD small.jpg<br /> File:CD 08059 CD small.jpg<br /> File:CD 08100 CD small.jpg<br /> File:CD 08182 CD small.jpg<br /> File:CD 08212 CD small.jpg<br /> &lt;/gallery&gt;<br /> <br /> <br /> &lt;u&gt;Artists / Links:&lt;/u&gt;<br /> *Ei Wada / Open Reel Ensemble [https://www.youtube.com/watch?v=PJudRvR3FBk&amp;ab_channel=IbakenGee]<br /> *Electronicos Fantasticos [https://www.youtube.com/watch?v=A0VYsiMtrNE&amp;ab_channel=ELECTRONICOSFANTASTICOS%21]<br /> *The Floppotron [https://www.youtube.com/watch?v=kCCXRerqaJI&amp;ab_channel=Pawe%C5%82Zadro%C5%BCniak]<br /> *Darsha Hewitt [https://darsha.org/works/]<br /> *Zimoun [https://www.zimoun.net/]<br /> *Look Mum No Computer [https://www.youtube.com/watch?v=GYLBjScgb7o&amp;t=267s&amp;ab_channel=LOOKMUMNOCOMPUTER]<br /> *Tarek Atoui [https://www.youtube.com/watch?v=yTYKt8_Txc0&amp;ab_channel=PalazzoGrassi-PuntadellaDogana]<br /> *Angelika Hoeger [https://www.youtube.com/watch?v=QLmlxWHbfXM&amp;t=6s&amp;ab_channel=dikajora]<br /> *Anna Schimkat [https://www.youtube.com/watch?v=6Pyx5m9aONE&amp;ab_channel=SELBSTGEBAUTEMUSIK]<br /> *John Cage [https://www.youtube.com/watch?v=gXOIkT1-QWY&amp;ab_channel=NaveforEva]<br /> *Gil Delindro [http://www.delindro.com/sound-performance.html]<br /> *Thessia Machado [https://vimeo.com/88451951]<br /> *Samson Young [http://www.teamgal.com/artists/samson_young/exhibitions/324/pastoral_music]<br /> *Christian Faubel [https://christian.faubel.derstrudel.org/almost-like-music/]<br /> *Electric Waste Orchestra [https://www.youtube.com/playlist?list=PLEctBUhq6Uce-q0gmiQjn0MTcW6iiKwll]<br /> *''.... ---&gt; please extend this list''<br /> <br /> <br /> &lt;u&gt;Schedule:&lt;/u&gt;<br /> <br /> October 20, 9:30 – 17:00<br /> :- excursion to e-waste recycling facility<br /> :- examples, positions, artists<br /> :- tear down session<br /> October 21, 13:00 – 17:00<br /> :- DIY electronics basics<br /> :- open tinkering session<br /> October 22, 13:00 – 17:00<br /> :- Arduino basics / motor controllers<br /> :- open tinkering session<br /> :- preview of prototypes<br /> :<br /> October 22 – November 3<br /> :- self-guided work on prototypes<br /> :<br /> November 3, 9:30 – 17:00<br /> :- updates of prototype status<br /> :- open tinkering session<br /> November 4, 13:00 – 17:00<br /> :- open tinkering session<br /> November 5, 13:00 – 17:00<br /> :- finalization<br /> :- concert<br /> <br /> <br /> &lt;u&gt;Topics:&lt;/u&gt;<br /> <br /> Technology:<br /> *Basics of electronics and hardware hacking<br /> *Getting started with Arduino<br /> *Getting familiar with motor drivers, relays and MOSFETs<br /> Art &amp; Thinking:<br /> *Contemporary (media) art positions that relate to the subject matter<br /> *Media Art &amp; Sustainability, e-waste, hardware hacking<br /> <br /> <br /> &lt;u&gt;Literature:&lt;/u&gt;<br /> *Make: Getting Started with Arduino, EAN 9781449363314<br /> *Arduino Cookbook, O’REILLY, German/English, ISBN Print: 978-3-86899-353-0<br /> *Arduino Tutorials 1: https://www.arduino.cc/en/Tutorial/HomePage<br /> *Arduino Tutorials 2: https://www.youtube.com/channel/UCfYfK0tzHZTpNFrc_NDKfTA<br /> *Jennifer Gabrys: Digital Rubbish, A Natural History of Electronics, https://monoskop.org/images/b/ba/Gabrys_Jennifer_Digital_Rubbish_A_Natural_History_of_Electronics.pdf<br /> <br /> <br /> &lt;u&gt;Materials&lt;/u&gt;<br /> *please bring your laptop / computer<br /> *please bring your Arduino hardware and electronics (if available)<br /> *bring a disused / unloved device to experiment with and keep your eyes open on the streets ;)<br /> <br /> <br /> &lt;u&gt;Language &amp; skill level:&lt;/u&gt;<br /> *The module will be held in English, unless all participants are speaking German.<br /> *No prior knowledge of electronics/programming is required.<br /> <br /> <br /> &lt;u&gt;Criteria for passing:&lt;/u&gt;<br /> *be on time, attend the classes<br /> *self-guided work between our meetings<br /> *document exercises on the wiki<br /> *take part in the Tired Machines Orchestra</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137215 2024-02-14T19:42:48Z

<p>Frederic Schmidt: </p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> == The Pitchman ==<br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing.<br /> <br /> with the potentiometer, you can change the resistance and so the speed (Pitch) <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic 2.png|left|thumb|398x398px|circuit schematic]]I used only four buttons and potentiometers and did the wiring the same way as shown in the picture to the left, if you click on the picture, you'll see a bigger version and also the tiny descriptions become more visible.<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> For my version, I made some kind of handheld thing with all the buttons and potentiometers inside a transparent cassette case.<br /> [[File:Handheld pitch trigger.png|left|thumb|1003x1003px|handheld pitch trigger with pitch set]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Use of spacers.png|left|thumb|use of spacers]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> The buttons were sourced from an old children's toy that I also found at the recycling facility, the potentiometers were ordered in a set online with different values.<br /> <br /> At the end, i was able to set different speeds with the potentiometers and trigger them with the four buttons. <br /> <br /> ===== TAPES: =====<br /> I used a tape with recordings of bird voices that sounded very weird but still like birds but different species <br /> <br /> if you pitch them up and down and i also used a tape loop with only one Synth sine wave on it that I was able to pitch up and down to a specific tone with the help of a guitar tuner.<br /> <br /> If you use two buttons, the values are added to each other and you can play some kind of portamento.<br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Video Pitchman.mp4|thumb|Video Pitchman|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> == The book of repetitions ==<br /> For the book of repetitions, I sourced a small PCB of an old children's toy that was used to record and play back ca. 10 sec of sound controlled by two buttons, one to record as long as you hold it down and one to play back the recording function used also a beep sound to indicate start and end of the recording.<br /> <br /> To make it more fun, I used a technique called [https://de.wikipedia.org/wiki/Circuit_bending circuit bending]. and did some research on this. <br /> <br /> I found out, that this small PCBs of children's toys, with the ability of playing back sounds (also if they are fixed and not changeable), are using some kind of oscillator as a reference for the playback speed. You'll find it under the black dot on the PCB. I poked around with some wires and soon found the right spot to install a bend. I connected a small resistor next to the playback circuit to &quot;high&quot; (positive pole) and it resulted in faster playback. I couldn't find a bend to make it slower but I found a other way to pitch down (slow down), wich I'll explain later. *[[File:PCB .png|left|thumb|PCB]] <br /> <br /> Since the &quot;hard wired&quot; connection is only able to make the playback very fast or normal (if not connected), I needed to find a way to get different resistances and one common way to do so is, to simply touch the contacts with your finger. Moving and pressing changes the resistance and also the current that is flowing and at the end the speed of playback and so the pitch. I extended the wires of the bend I found and connected them to a rubber pushbutton where i removed the coating from and scratched the PCB so the copper contact was exposed to touch. <br /> <br /> [[File:Case front with drilled holes.png|thumb|case front with drilled holes]]<br /> At the end, I putted the bended circuit in a happy meal plastic book and installed all the necessary components in the book casing. I also added two screws to be able to push the buttons from outside, when the book case is closed.[[File:Install in book case with battery pack.png|left|thumb|install in case]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Headphone jack.png|thumb|headphone jack]]<br /> The most important modification was also to add a 3.5mm headphone jack to the toy/instrument/machine and a small Potentiometer as a Volume control, when its hooked up to a amplifier or if you use it with headphones, its the small yellow thing.<br /> [[File:Volume pot.png|left|thumb|volume pot]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> &lt;nowiki&gt;*&lt;/nowiki&gt;If you record something in the pitched up state, with your finger pressed on the open contacts and then remove them, it will be pitched down.<br /> <br /> If you make a recording and keep the play button pushed down, it will loop the playback.<br /> <br /> sometimes its also distorting the sound and there are happy accidents happening sometimes. ;)<br /> [[File:Video The book of repetitions.mp4|left|thumb|Video The book of repetitions]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137214 2024-02-14T19:40:56Z

<p>Frederic Schmidt: </p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> == The Pitchman ==<br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing.<br /> <br /> with the potentiometer, you can change the resistance and so the speed (Pitch) <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic 2.png|left|thumb|398x398px|circuit schematic]]I used only four buttons and potentiometers and did the wiring the same way as shown in the picture to the left, if you click on the picture, you'll see a bigger version and also the tiny descriptions become more visible.<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> For my version, I made some kind of handheld thing with all the buttons and potentiometers inside a transparent cassette case.<br /> [[File:Handheld pitch trigger.png|left|thumb|1003x1003px|handheld pitch trigger with pitch set]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Use of spacers.png|left|thumb|use of spacers]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> The buttons were sourced from an old children's toy that I also found at the recycling facility, the potentiometers were ordered in a set online with different values.<br /> <br /> At the end, i was able to set different speeds with the potentiometers and trigger them with the four buttons. <br /> <br /> ===== TAPES: =====<br /> I used a tape with recordings of bird voices that sounded very weird but still like birds but different species <br /> <br /> if you pitch them up and down and i also used a tape loop with only one Synth sine wave on it that I was able to pitch up and down to a specific tone with the help of a guitar tuner.<br /> <br /> If you use two buttons, the values are added to each other and you can play some kind of portamento.<br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Video Pitchman.mp4|thumb|Video Pitchman|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> == The book of repetitions ==<br /> For the book of repetitions, I sourced a small PCB of an old children's toy that was used to record and play back ca. 10 sec of sound controlled by two buttons, one to record as long as you hold it down and one to play back the recording function used also a beep sound to indicate start and end of the recording.<br /> <br /> To make it more fun, I used a technique called [https://de.wikipedia.org/wiki/Circuit_bending circuit bending]. and did some research on this. <br /> <br /> I found out, that this small PCBs of children's toys, with the ability of playing back sounds (also if they are fixed and not changeable), are using some kind of oscillator as a reference for the playback speed. You'll find it under the black dot on the PCB. I poked around with some wires and soon found the right spot to install a bend. I connected a small resistor next to the playback circuit to &quot;high&quot; (positive pole) and it resulted in faster playback. I couldn't find a bend to make it slower but I found a other way to pitch down (slow down), wich I'll explain later. *[[File:PCB .png|left|thumb|PCB]] <br /> <br /> Since the hard &quot;wired connection&quot; is only able to make the playback very fast or normal (if not connected), I needed to find a way to get different resistances and one common way to do so is, to simply touch the contacts with your finger. Moving and pressing changes the resistance and also the current that is flowing and at the end the speed of playback and so the pitch. I extended the wires of the bend I found and connected them to a rubber pushbutton where i removed the coating from and scratched the PCB so the copper contact was exposed to touch. <br /> <br /> [[File:Case front with drilled holes.png|thumb|case front with drilled holes]]<br /> At the end, I putted the bended circuit in a happy meal plastic book and installed all the necessary components in the book casing. I also added two screws to be able to push the buttons from outside, when the book case is closed.[[File:Install in book case with battery pack.png|left|thumb|install in case]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Headphone jack.png|thumb|headphone jack]]<br /> The most important modification was also to add a 3.5mm headphone jack to the toy/instrument/machine and a small Potentiometer as a Volume control, when its hooked up to a amplifier or if you use it with headphones, its the small yellow thing.<br /> [[File:Volume pot.png|left|thumb|volume pot]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> &lt;nowiki&gt;*&lt;/nowiki&gt;If you record something in the pitched up state, with your finger pressed on the open contacts and then remove them, it will be pitched down.<br /> <br /> If you make a recording and keep the play button pushed down, it will loop the playback.<br /> <br /> sometimes its also distorting the sound and there are happy accidents happening sometimes. ;)<br /> [[File:Video The book of repetitions.mp4|left|thumb|Video The book of repetitions]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137213 2024-02-14T19:40:14Z

<p>Frederic Schmidt: </p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> == The Pitchman ==<br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing.<br /> <br /> with the potentiometer, you can change the resistance and so the speed (Pitch) <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic 2.png|left|thumb|398x398px|circuit schematic]]I used only four buttons and potentiometers and did the wiring the same way as shown in the picture to the left, if you click on the picture, you'll see a bigger version and also the tiny descriptions become more visible.<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> For my version, I made some kind of handheld thing with all the buttons and potentiometers inside a transparent cassette case.<br /> [[File:Handheld pitch trigger.png|left|thumb|1003x1003px|handheld pitch trigger with pitch set]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Use of spacers.png|left|thumb|use of spacers]]<br /> The buttons were sourced from an old children's toy that I also found at the recycling facility, the potentiometers were ordered in a set online with different values.<br /> <br /> At the end, i was able to set different speeds with the potentiometers and trigger them with the four buttons. <br /> <br /> ===== TAPES: =====<br /> I used a tape with recordings of bird voices that sounded very weird but still like birds but different species <br /> <br /> if you pitch them up and down and i also used a tape loop with only one Synth sine wave on it that I was able to pitch up and down to a specific tone with the help of a guitar tuner.<br /> <br /> If you use two buttons, the values are added to each other and you can play some kind of portamento.<br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Video Pitchman.mp4|thumb|Video Pitchman|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> == The book of repetitions ==<br /> For the book of repetitions, I sourced a small PCB of an old children's toy that was used to record and play back ca. 10 sec of sound controlled by two buttons, one to record as long as you hold it down and one to play back the recording function used also a beep sound to indicate start and end of the recording.<br /> <br /> To make it more fun, I used a technique called [https://de.wikipedia.org/wiki/Circuit_bending circuit bending]. and did some research on this. <br /> <br /> I found out, that this small PCBs of children's toys, with the ability of playing back sounds (also if they are fixed and not changeable), are using some kind of oscillator as a reference for the playback speed. You'll find it under the black dot on the PCB. I poked around with some wires and soon found the right spot to install a bend. I connected a small resistor next to the playback circuit to &quot;high&quot; (positive pole) and it resulted in faster playback. I couldn't find a bend to make it slower but I found a other way to pitch down (slow down), wich I'll explain later. *[[File:PCB .png|left|thumb|PCB]] <br /> <br /> Since the hard &quot;wired connection&quot; is only able to make the playback very fast or normal (if not connected), I needed to find a way to get different resistances and one common way to do so is, to simply touch the contacts with your finger. Moving and pressing changes the resistance and also the current that is flowing and at the end the speed of playback and so the pitch. I extended the wires of the bend I found and connected them to a rubber pushbutton where i removed the coating from and scratched the PCB so the copper contact was exposed to touch. <br /> <br /> [[File:Case front with drilled holes.png|thumb|case front with drilled holes]]<br /> At the end, I putted the bended circuit in a happy meal plastic book and installed all the necessary components in the book casing. I also added two screws to be able to push the buttons from outside, when the book case is closed.[[File:Install in book case with battery pack.png|left|thumb|install in case]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Headphone jack.png|thumb|headphone jack]]<br /> The most important modification was also to add a 3.5mm headphone jack to the toy/instrument/machine and a small Potentiometer as a Volume control, when its hooked up to a amplifier or if you use it with headphones, its the small yellow thing.<br /> [[File:Volume pot.png|left|thumb|volume pot]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> &lt;nowiki&gt;*&lt;/nowiki&gt;If you record something in the pitched up state, with your finger pressed on the open contacts and then remove them, it will be pitched down.<br /> <br /> If you make a recording and keep the play button pushed down, it will loop the playback.<br /> <br /> sometimes its also distorting the sound and there are happy accidents happening sometimes. ;)<br /> [[File:Video The book of repetitions.mp4|left|thumb|Video The book of repetitions]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137212 2024-02-14T19:39:45Z

<p>Frederic Schmidt: </p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> == The Pitchman ==<br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing.<br /> <br /> with the potentiometer, you can change the resistance and so the speed (Pitch) <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic 2.png|left|thumb|398x398px|circuit schematic]]I used only four buttons and potentiometers and did the wiring the same way as shown in the picture to the left, if you click on the picture, you'll see a bigger version and also the tiny descriptions become more visible.<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> For my version, I made some kind of handheld thing with all the buttons and potentiometers inside a transparent cassette case.<br /> [[File:Handheld pitch trigger.png|left|thumb|1003x1003px|handheld pitch trigger with pitch set]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Use of spacers.png|left|thumb|use of spacers]]<br /> The buttons were sourced from an old children's toy that I also found at the recycling facility, the potentiometers were ordered in a set online with different values.<br /> <br /> At the end, i was able to set different speeds with the potentiometers and trigger them with the four buttons. <br /> <br /> ===== TAPES: =====<br /> I used a tape with recordings of bird voices that sounded very weird but still like birds but different species <br /> <br /> if you pitch them up and down and i also used a tape loop with only one Synth sine wave on it that I was able to pitch up and down to a specific tone with the help of a guitar tuner.<br /> <br /> If you use two buttons, the values are added to each other and you can play some kind of portamento.<br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Video Pitchman.mp4|thumb|Video Pitchman|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> == The book of repetitions ==<br /> For the book of repetitions, I sourced a small PCB of an old children's toy that was used to record and play back ca. 10 sec of sound controlled by two buttons, one to record as long as you hold it down and one to play back the recording function used also a beep sound to indicate start and end of the recording.<br /> <br /> To make it more fun, I used a technique called [https://de.wikipedia.org/wiki/Circuit_bending circuit bending]. and did some research on this. <br /> <br /> I found out, that this small PCBs of children's toys, with the ability of playing back sounds (also if they are fixed and not changeable), are using some kind of oscillator as a reference for the playback speed. You'll find it under the black dot on the PCB. I poked around with some wires and soon found the right spot to install a bend. I connected a small resistor next to the playback circuit to &quot;high&quot; (positive pole) and it resulted in faster playback. I couldn't find a bend to make it slower but I found a other way to pitch down (slow down), wich I'll explain later. *[[File:PCB .png|left|thumb|PCB]] <br /> <br /> Since the hard &quot;wired connection&quot; is only able to make the playback very fast or normal (if not connected), I needed to find a way to get different resistances and one common way to do so is, to simply touch the contacts with your finger. Moving and pressing changes the resistance and also the current that is flowing and at the end the speed of playback and so the pitch. I extended the wires of the bend I found and connected them to a rubber pushbutton where i removed the coating from and scratched the PCB so the copper contact was exposed to touch. <br /> <br /> [[File:Case front with drilled holes.png|thumb|case front with drilled holes]]<br /> At the end, I putted the bended circuit in a happy meal plastic book and installed all the necessary components in the book casing. I also added two screws to be able to push the buttons from outside, when the book case is closed.[[File:Install in book case with battery pack.png|left|thumb|install in case]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Headphone jack.png|thumb|headphone jack]]<br /> The most important modification was also to add a 3.5mm headphone jack to the toy/instrument/machine and a small Potentiometer as a Volume control, when its hooked up to a amplifier or if you use it with headphones, its the small yellow thing.<br /> [[File:Volume pot.png|left|thumb|volume pot]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> &lt;nowiki&gt;*&lt;/nowiki&gt;If you record something in the pitched up state, with your finger pressed on the open contacts and then remove them, it will be pitched down.<br /> <br /> If you make a recording and keep the play button pushed down, it will loop the playback.<br /> <br /> sometimes its also distorting the sound and there are happy accidents happening sometimes. ;)<br /> [[File:Video The book of repetitions.mp4|left|thumb|Video The book of repetitions]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137211 2024-02-14T19:38:55Z

<p>Frederic Schmidt: </p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> == The Pitchman ==<br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing. <br /> <br /> with the potentiometer, you can change the resistance and so the speed (Pitch) <br /> <br /> <br /> <br /> <br /> <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic 2.png|left|thumb|398x398px|circuit schematic]]I used only four buttons and potentiometers and did the wiring the same way as shown in the picture to the left, if you click on the picture, you'll see a bigger version and also the tiny descriptions become more visible.<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> For my version, I made some kind of handheld thing with all the buttons and potentiometers inside a transparent cassette case.<br /> [[File:Handheld pitch trigger.png|left|thumb|1003x1003px|handheld pitch trigger with pitch set]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Use of spacers.png|left|thumb|use of spacers]]<br /> The buttons were sourced from an old children's toy that I also found at the recycling facility, the potentiometers were ordered in a set online with different values.<br /> <br /> At the end, i was able to set different speeds with the potentiometers and trigger them with the four buttons. <br /> <br /> ===== TAPES: =====<br /> I used a tape with recordings of bird voices that sounded very weird but still like birds but different species <br /> <br /> if you pitch them up and down and i also used a tape loop with only one Synth sine wave on it that I was able to pitch up and down to a specific tone with the help of a guitar tuner.<br /> <br /> If you use two buttons, the values are added to each other and you can play some kind of portamento.<br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Video Pitchman.mp4|thumb|Video Pitchman|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> == The book of repetitions ==<br /> For the book of repetitions, I sourced a small PCB of an old children's toy that was used to record and play back ca. 10 sec of sound controlled by two buttons, one to record as long as you hold it down and one to play back the recording function used also a beep sound to indicate start and end of the recording.<br /> <br /> To make it more fun, I used a technique called [https://de.wikipedia.org/wiki/Circuit_bending circuit bending]. and did some research on this. <br /> <br /> I found out, that this small PCBs of children's toys, with the ability of playing back sounds (also if they are fixed and not changeable), are using some kind of oscillator as a reference for the playback speed. You'll find it under the black dot on the PCB. I poked around with some wires and soon found the right spot to install a bend. I connected a small resistor next to the playback circuit to &quot;high&quot; (positive pole) and it resulted in faster playback. I couldn't find a bend to make it slower but I found a other way to pitch down (slow down), wich I'll explain later. *[[File:PCB .png|left|thumb|PCB]] <br /> <br /> Since the hard &quot;wired connection&quot; is only able to make the playback very fast or normal (if not connected), I needed to find a way to get different resistances and one common way to do so is, to simply touch the contacts with your finger. Moving and pressing changes the resistance and also the current that is flowing and at the end the speed of playback and so the pitch. I extended the wires of the bend I found and connected them to a rubber pushbutton where i removed the coating from and scratched the PCB so the copper contact was exposed to touch. <br /> <br /> [[File:Case front with drilled holes.png|thumb|case front with drilled holes]]<br /> At the end, I putted the bended circuit in a happy meal plastic book and installed all the necessary components in the book casing. I also added two screws to be able to push the buttons from outside, when the book case is closed.[[File:Install in book case with battery pack.png|left|thumb|install in case]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Headphone jack.png|thumb|headphone jack]]<br /> The most important modification was also to add a 3.5mm headphone jack to the toy/instrument/machine and a small Potentiometer as a Volume control, when its hooked up to a amplifier or if you use it with headphones, its the small yellow thing.<br /> [[File:Volume pot.png|left|thumb|volume pot]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> &lt;nowiki&gt;*&lt;/nowiki&gt;If you record something in the pitched up state, with your finger pressed on the open contacts and then remove them, it will be pitched down.<br /> <br /> If you make a recording and keep the play button pushed down, it will loop the playback.<br /> <br /> sometimes its also distorting the sound and there are happy accidents happening sometimes. ;)<br /> [[File:Video The book of repetitions.mp4|left|thumb|Video The book of repetitions]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137210 2024-02-14T19:37:12Z

<p>Frederic Schmidt: final</p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> == The Pitchman ==<br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing. <br /> <br /> with the potentiometer, you can change the resistance and so the speed (Pitch) <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic 2.png|left|thumb|398x398px|circuit schematic]]I used only four buttons and potentiometers and did the wiring the same way as shown in the picture to the left, if you click on the picture, you'll see a bigger version and also the tiny descriptions become more visible.<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> For my version, I made some kind of handheld thing with all the buttons and potentiometers inside a transparent cassette case.<br /> [[File:Handheld pitch trigger.png|left|thumb|1003x1003px|handheld pitch trigger with pitch set]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Use of spacers.png|left|thumb|use of spacers]]<br /> The buttons were sourced from an old children's toy that I also found at the recycling facility, the potentiometers were ordered in a set online with different values.<br /> <br /> At the end, i was able to set different speeds with the potentiometers and trigger them with the four buttons. <br /> <br /> ===== TAPES: =====<br /> I used a tape with recordings of bird voices that sounded very weird but still like birds but different species <br /> <br /> if you pitch them up and down and i also used a tape loop with only one Synth sine wave on it that I was able to pitch up and down to a specific tone with the help of a guitar tuner.<br /> <br /> If you use two buttons, the values are added to each other and you can play some kind of portamento.<br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Video Pitchman.mp4|thumb|Video Pitchman|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> == The book of repetitions ==<br /> For the book of repetitions, I sourced a small PCB of an old children's toy that was used to record and play back ca. 10 sec of sound controlled by two buttons, one to record as long as you hold it down and one to play back the recording function used also a beep sound to indicate start and end of the recording.<br /> <br /> To make it more fun, I used a technique called [https://de.wikipedia.org/wiki/Circuit_bending circuit bending]. and did some research on this. <br /> <br /> I found out, that this small PCBs of children's toys, with the ability of playing back sounds (also if they are fixed and not changeable), are using some kind of oscillator as a reference for the playback speed. You'll find it under the black dot on the PCB. I poked around with some wires and soon found the right spot to install a bend. I connected a small resistor next to the playback circuit to &quot;high&quot; (positive pole) and it resulted in faster playback. I couldn't find a bend to make it slower but I found a other way to pitch down (slow down), wich I'll explain later. *[[File:PCB .png|left|thumb|PCB]] <br /> <br /> Since the hard &quot;wired connection&quot; is only able to make the playback very fast or normal (if not connected), I needed to find a way to get different resistances and one common way to do so is, to simply touch the contacts with your finger. Moving and pressing changes the resistance and also the current that is flowing and at the end the speed of playback and so the pitch. I extended the wires of the bend I found and connected them to a rubber pushbutton where i removed the coating from and scratched the PCB so the copper contact was exposed to touch. <br /> <br /> [[File:Case front with drilled holes.png|thumb|case front with drilled holes]]<br /> At the end, I putted the bended circuit in a happy meal plastic book and installed all the necessary components in the book casing. I also added two screws to be able to push the buttons from outside, when the book case is closed.[[File:Install in book case with battery pack.png|left|thumb|install in case]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Headphone jack.png|thumb|headphone jack]]<br /> The most important modification was also to add a 3.5mm headphone jack to the toy/instrument/machine and a small Potentiometer as a Volume control, when its hooked up to a amplifier or if you use it with headphones, its the small yellow thing.<br /> [[File:Volume pot.png|left|thumb|volume pot]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> &lt;nowiki&gt;*&lt;/nowiki&gt;If you record something in the pitched up state, with your finger pressed on the open contacts and then remove them, it will be pitched down.<br /> <br /> If you make a recording and keep the play button pushed down, it will loop the playback.<br /> <br /> sometimes its also distorting the sound and there are happy accidents happening sometimes. ;)<br /> [[File:Video The book of repetitions.mp4|left|thumb|Video The book of repetitions]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137209 2024-02-14T19:36:35Z

<p>Frederic Schmidt: </p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> == The Pitchman ==<br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing. <br /> <br /> with the potentiometer, you can change the resistance and so the speed (Pitch) <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic 2.png|left|thumb|398x398px|circuit schematic]]I used only four buttons and potentiometers and did the wiring the same way as shown in the picture to the left, if you click on the picture, you'll see a bigger version and also the tiny descriptions become more visible.<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> For my version, I made some kind of handheld thing with all the buttons and potentiometers inside a transparent cassette case.<br /> [[File:Handheld pitch trigger.png|left|thumb|1003x1003px|handheld pitch trigger with pitch set]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Use of spacers.png|left|thumb|use of spacers]]<br /> The buttons were sourced from an old children's toy that I also found at the recycling facility, the potentiometers were ordered in a set online with different values.<br /> <br /> At the end, i was able to set different speeds with the potentiometers and trigger them with the four buttons. <br /> <br /> ===== TAPES: =====<br /> I used a tape with recordings of bird voices that sounded very weird but still like birds but different species <br /> <br /> if you pitch them up and down and i also used a tape loop with only one Synth sine wave on it that I was able to pitch up and down to a specific tone with the help of a guitar tuner.<br /> <br /> If you use two buttons, the values are added to each other and you can play some kind of portamento.<br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Video Pitchman.mp4|thumb|Video Pitchman|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> == The book of repetitions ==<br /> For the book of repetitions, I sourced a small PCB of an old children's toy that was used to record and play back ca. 10 sec of sound controlled by two buttons, one to record as long as you hold it down and one to play back the recording function used also a beep sound to indicate start and end of the recording.<br /> <br /> To make it more fun, I used a technique called [https://de.wikipedia.org/wiki/Circuit_bending circuit bending]. and did some research on this. <br /> <br /> I found out, that this small PCBs of children's toys, with the ability of playing back sounds (also if they are fixed and not changeable), are using some kind of oscillator as a reference for the playback speed. You'll find it under the black dot on the PCB. I poked around with some wires and soon found the right spot to install a bend. I connected a small resistor next to the playback circuit to &quot;high&quot; (positive pole) and it resulted in faster playback. I couldn't find a bend to make it slower but I found a other way to pitch down (slow down), wich I'll explain later. *[[File:PCB .png|left|thumb|PCB]] <br /> <br /> Since the hard &quot;wired connection&quot; is only able to make the playback very fast or normal (if not connected), I needed to find a way to get different resistances and one common way to do so is, to simply touch the contacts with your finger. Moving and pressing changes the resistance and also the current that is flowing and at the end the speed of playback and so the pitch. I extended the wires of the bend I found and connected them to a rubber pushbutton where i removed the coating from and scratched the PCB so the copper contact was exposed to touch. <br /> <br /> [[File:Case front with drilled holes.png|thumb|case front with drilled holes]]<br /> At the end, I putted the bended circuit in a happy meal plastic book and installed all the necessary components in the book casing. I also added two screws to be able to push the buttons from outside, when the book case is closed.[[File:Install in book case with battery pack.png|left|thumb|install in case]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Headphone jack.png|thumb|headphone jack]]<br /> The most important modification was also to add a 3.5mm headphone jack to the toy/instrument/machine and a small Potentiometer as a Volume control, when its hooked up to a amplifier or if you use it with headphones, its the small yellow thing.<br /> [[File:Volume pot.png|left|thumb|volume pot]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> &lt;nowiki&gt;*&lt;/nowiki&gt;If you record something in the pitched up state, with your finger pressed on the open contacts and then remove them, it will be pitched down.<br /> <br /> If you make a recording and keep the play button pushed down, it will loop the playback.<br /> <br /> sometimes its also distorting the sound and there are happy accidents happening sometimes. ;)<br /> [[File:Video The book of repetitions.mp4|left|thumb|Video The book of repetitions]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137208 2024-02-14T19:36:04Z

<p>Frederic Schmidt: </p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> == The Pitchman ==<br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing. <br /> <br /> with the potentiometer, you can change the resistance and so the speed (Pitch) <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic 2.png|left|thumb|398x398px|circuit schematic]]I used only four buttons and potentiometers and did the wiring the same way as shown in the picture to the left, if you click on the picture, you'll see a bigger version and also the tiny descriptions become more visible.<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> For my version, I made some kind of handheld thing with all the buttons and potentiometers inside a transparent cassette case.<br /> [[File:Handheld pitch trigger.png|left|thumb|1003x1003px|handheld pitch trigger with pitch set]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Use of spacers.png|left|thumb|use of spacers]]<br /> The buttons were sourced from an old children's toy that I also found at the recycling facility, the potentiometers were ordered in a set online with different values.<br /> <br /> At the end, i was able to set different speeds with the potentiometers and trigger them with the four buttons. <br /> <br /> ===== TAPES: =====<br /> I used a tape with recordings of bird voices that sounded very weird but still like birds but different species <br /> <br /> if you pitch them up and down and i also used a tape loop with only one Synth sine wave on it that I was able to pitch up and down to a specific tone with the help of a guitar tuner.<br /> <br /> If you use two buttons, the values are added to each other and you can play some kind of portamento.<br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Video Pitchman.mp4|thumb|Video Pitchman|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> == The book of repetitions ==<br /> For the book of repetitions, I sourced a small PCB of an old children's toy that was used to record and play back ca. 10 sec of sound controlled by two buttons, one to record as long as you hold it down and one to play back the recording function used also a beep sound to indicate start and end of the recording.<br /> <br /> To make it more fun, I used a technique called [https://de.wikipedia.org/wiki/Circuit_bending circuit bending]. and did some research on this. <br /> <br /> I found out, that this small PCBs of children's toys, with the ability of playing back sounds (also if they are fixed and not changeable), are using some kind of oscillator as a reference for the playback speed. You'll find it under the black dot on the PCB. I poked around with some wires and soon found the right spot to install a bend. I connected a small resistor next to the playback circuit to &quot;high&quot; (positive pole) and it resulted in faster playback. I couldn't find a bend to make it slower but I found a other way to pitch down (slow down), wich I'll explain later. *[[File:PCB .png|left|thumb|PCB]] <br /> <br /> Since the hard &quot;wired connection&quot; is only able to make the playback very fast or normal (if not connected), I needed to find a way to get different resistances and one common way to do so is, to simply touch the contacts with your finger. Moving and pressing changes the resistance and also the current that is flowing and at the end the speed of playback and so the pitch. I extended the wires of the bend I found and connected them to a rubber pushbutton where i removed the coating from and scratched the PCB so the copper contact was exposed to touch. <br /> <br /> [[File:Case front with drilled holes.png|thumb|case front with drilled holes]]<br /> At the end, I putted the bended circuit in a happy meal plastic book and installed all the necessary components in the book casing. I also added two screws to be able to push the buttons from outside, when the book case is closed.[[File:Install in book case with battery pack.png|left|thumb|install in case]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Headphone jack.png|thumb|headphone jack]]<br /> The most important modification was also to add a 3.5mm headphone jack to the toy/instrument/machine and a small Potentiometer as a Volume control, when its hooked up to a amplifier or if you use it with headphones, its the small yellow thing.<br /> [[File:Volume pot.png|left|thumb|volume pot]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> &lt;nowiki&gt;*&lt;/nowiki&gt;If you record something in the pitched up state, with your finger pressed on the open contacts and then remove them, it will be pitched down.<br /> <br /> If you make a recording and keep the play button pushed down, it will loop the playback.<br /> <br /> sometimes its also distorting the sound and there are happy accidents happening sometimes. ;)<br /> [[File:Video The book of repetitions.mp4|left|thumb|Video The book of repetitions]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137207 2024-02-14T19:29:34Z

<p>Frederic Schmidt: </p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> == The Pitchman ==<br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing. <br /> <br /> with the potentiometer, you can change the resistance and so the speed (Pitch) <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic 2.png|left|thumb|398x398px|circuit schematic]]I used only four buttons and potentiometers and did the wiring the same way as shown in the picture to the left, if you click on the picture, you'll see a bigger version and also the tiny descriptions become more visible.<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> For my version, I made some kind of handheld thing with all the buttons and potentiometers inside a transparent cassette case.<br /> [[File:Handheld pitch trigger.png|left|thumb|1003x1003px|handheld pitch trigger with pitch set]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Use of spacers.png|left|thumb|use of spacers]]<br /> The buttons were sourced from an old children's toy that I also found at the recycling facility, the potentiometers were ordered in a set online with different values.<br /> <br /> At the end, i was able to set different speeds with the potentiometers and trigger them with the four buttons. <br /> <br /> ===== TAPES: =====<br /> I used a tape with recordings of bird voices that sounded very weird but still like birds but different species <br /> <br /> if you pitch them up and down and i also used a tape loop with only one Synth sine wave on it that I was able to pitch up and down to a specific tone with the help of a guitar tuner.<br /> <br /> If you use two buttons, the values are added to each other and you can play some kind of portamento.<br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Video Pitchman.mp4|thumb|Video Pitchman|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> == The book of repetitions ==<br /> For the book of repetitions, I sourced a small PCB of an old children's toy that was used to record and play back ca. 10 sec of sound controlled by two buttons, one to record as long as you hold it down and one to play back the recording function used also a beep sound to indicate start and end of the recording.<br /> <br /> To make it more fun, I used a technique called [https://de.wikipedia.org/wiki/Circuit_bending circuit bending]. and did some research on this. <br /> <br /> I found out, that this small PCBs of children's toys, with the ability of playing back sounds (also if they are fixed and not changeable), are using some kind of oscillator as a reference for the playback speed. You'll find it under the black dot on the PCB. I poked around with some wires and soon found the right spot to install a bend. I connected a small resistor next to the playback circuit to &quot;high&quot; (positive pole) and it resulted in faster playback. I couldn't find a bend to make it slower but I found a other way to pitch down (slow down), wich I'll explain later. *[[File:PCB .png|left|thumb|PCB]] <br /> <br /> Since the hard &quot;wired connection&quot; is only able to make the playback very fast or normal (if not connected), I needed to find a way to get different resistances and one common way to do so is, to simply touch the contacts with your finger. Moving and pressing changes the resistance and also the current that is flowing and at the end the speed of playback and so the pitch. I extended the wires of the bend I found and connected them to a rubber pushbutton where i removed the coating from and scratched the PCB so the copper contact was exposed to touch. <br /> <br /> [[File:Case front with drilled holes.png|thumb|case front with drilled holes]]<br /> At the end, I putted the bended circuit in a happy meal plastic book and installed all the necessary components in the book casing. I also added two screws to be able to push the buttons from outside, when the book case is closed.[[File:Install in book case with battery pack.png|left|thumb|install in case]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Headphone jack.png|thumb|headphone jack]]<br /> The most important modification was also to add a 3.5mm headphone jack to the toy/instrument/machine and a small Potentiometer as a Volume control, when its hooked up to a amplifier or if you use it with headphones, its the small yellow thing.<br /> [[File:Volume pot.png|left|thumb|volume pot]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> &lt;nowiki&gt;*&lt;/nowiki&gt;If you record something in the pitched up state, with your finger pressed on the open contacts and then remove them, it will be pitched down.<br /> <br /> If you make a recording and keep the play button pushed down, it will loop the playback.<br /> <br /> sometimes its also distorting the sound and there are happy accidents happening sometimes. ;)<br /> [[File:Video The book of repetitions.mp4|left|thumb|Video The book of repetitions]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137206 2024-02-14T19:24:31Z

<p>Frederic Schmidt: final</p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> == The Pitchman ==<br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing. <br /> <br /> with the potentiometer, you can change the resistance and so the speed (Pitch) <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic 2.png|left|thumb|398x398px|circuit schematic]]I used only four buttons and potentiometers and did the wiring the same way as shown in the picture to the left, if you click on the picture, you'll see a bigger version and also the tiny descriptions become more visible.<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> For my version, I made some kind of handheld thing with all the buttons and potentiometers inside a transparent cassette case.<br /> [[File:Handheld pitch trigger.png|left|thumb|1003x1003px|handheld pitch trigger with pitch set]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Use of spacers.png|left|thumb|use of spacers]]<br /> The buttons were sourced from an old children's toy that I also found at the recycling facility, the potentiometers were ordered in a set online with different values.<br /> <br /> At the end, i was able to set different speeds with the potentiometers and trigger them with the four buttons. <br /> <br /> ===== TAPES: =====<br /> I used a tape with recordings of bird voices that sounded very weird but still like birds but different species <br /> <br /> if you pitch them up and down and i also used a tape loop with only one Synth sine wave on it that I was able to pitch up and down to a specific tone with the help of a guitar tuner.<br /> <br /> If you use two buttons, the values are added to each other and you can play some kind of portamento.<br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Video Pitchman.mp4|thumb|Video Pitchman|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> == The book of repetitions ==<br /> For the book of repetitions, I sourced a small PCB of an old children's toy that was used to record and play back ca. 10 sec of sound controlled by two buttons, one to record as long as you hold it down and one to play back the recording function used also a beep sound to indicate start and end of the recording.<br /> <br /> To make it more fun, I used a technique called [https://de.wikipedia.org/wiki/Circuit_bending circuit bending]. and did some research on this. <br /> <br /> I found out, that this small PCBs of children's toys, with the ability of playing back sounds (also if they are fixed and not changeable), are using some kind of oscillator as a reference for the playback speed. You'll find it under the black dot on the PCB. I poked around with some wires and soon found the right spot to install a bend. I connected a small resistor next to the playback circuit to &quot;high&quot; (positive pole) and it resulted in faster playback. I couldn't find a bend to make it slower but I found a other way to pitch down (slow down), wich I'll explain later. *[[File:PCB .png|left|thumb|PCB]] <br /> <br /> Since the hard &quot;wired connection&quot; is only able to make the playback very fast or normal (if not connected), I needed to find a way to get different resistances and one common way to do so is, to simply touch the contacts with your finger. Moving and pressing changes the resistance and also the current that is flowing and at the end the speed of playback and so the pitch. I extended the wires of the bend I found and connected them to a rubber pushbutton where i removed the coating from and scratched the PCB so the copper contact was exposed to touch. <br /> <br /> [[File:Case front with drilled holes.png|thumb|case front with drilled holes]]<br /> At the end, I putted the bended circuit in a happy meal plastic book and installed all the necessary components in the book casing. I also added two screws to be able to push the buttons from outside, when the book case is closed.[[File:Install in book case with battery pack.png|left|thumb|install in case]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Headphone jack.png|thumb|headphone jack]]<br /> The most important modification was also to add a 3.5mm headphone jack to the toy/instrument/machine and a small Potentiometer as a Volume control, when its hooked up to a amplifier or if you use it with headphones, its the small yellow thing.<br /> [[File:Volume pot.png|left|thumb|volume pot]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> &lt;nowiki&gt;*&lt;/nowiki&gt;If you record something in the pitched up state, with your finger pressed on the open contacts and then remove them, it will be pitched down.<br /> <br /> If you make a really short recording and keep the play button pushed down, it will loop the playback.<br /> [[File:Video The book of repetitions.mp4|left|thumb|Video The book of repetitions]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=File:Video_The_book_of_repetitions.mp4&diff=137205 2024-02-14T19:23:57Z

<p>Frederic Schmidt: </p> <hr /> <div>Video The book of repetitions</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=File:Headphone_jack.png&diff=137204 2024-02-14T19:21:52Z

<p>Frederic Schmidt: </p> <hr /> <div>headphone jack</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=File:Case_front_with_drilled_holes.png&diff=137203 2024-02-14T18:53:58Z

<p>Frederic Schmidt: </p> <hr /> <div>case front with drilled holes</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=File:Volume_pot.png&diff=137202 2024-02-14T18:52:28Z

<p>Frederic Schmidt: </p> <hr /> <div>volume pot</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137201 2024-02-14T18:46:19Z

<p>Frederic Schmidt: </p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> == The Pitchman ==<br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing. <br /> <br /> with the potentiometer, you can change the resistance and so the speed (Pitch) <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic 2.png|left|thumb|398x398px|circuit schematic]]I used only four buttons and potentiometers and did the wiring the same way as shown in the picture to the left, if you click on the picture, you'll see a bigger version and also the tiny descriptions become more visible.<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> For my version, I made some kind of handheld thing with all the buttons and potentiometers inside a transparent cassette case.<br /> [[File:Handheld pitch trigger.png|left|thumb|1003x1003px|handheld pitch trigger with pitch set]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Use of spacers.png|left|thumb|use of spacers]]<br /> The buttons were sourced from an old children's toy that I also found at the recycling facility, the potentiometers were ordered in a set online with different values.<br /> <br /> At the end, i was able to set different speeds with the potentiometers and trigger them with the four buttons. <br /> <br /> ===== TAPES: =====<br /> I used a tape with recordings of bird voices that sounded very weird but still like birds but different species <br /> <br /> if you pitch them up and down and i also used a tape loop with only one Synth sine wave on it that I was able to pitch up and down to a specific tone with the help of a guitar tuner.<br /> <br /> If you use two buttons, the values are added to each other and you can play some kind of portamento.<br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Video Pitchman.mp4|thumb|Video Pitchman|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> == The book of repetitions ==<br /> For the book of repetitions, I sourced a small PCB of an old children's toy that was used to record and play back ca. 10 sec of sound controlled by two buttons, one to record as long as you hold it down and one to play back the recording function used also a beep sound to indicate start and end of the recording.<br /> <br /> To make it more fun, I used a technique called [https://de.wikipedia.org/wiki/Circuit_bending circuit bending]. and did some research on this. <br /> <br /> I found out, that this small PCBs of children's toys, with the ability of playing back sounds (also if they are fixed and not changeable), are using some kind of oscillator as a reference for the playback speed. You'll find it under the black dot on the PCB. I poked around with some wires and soon found the right spot to install a bend. I connected a small resistor next to the playback circuit to &quot;high&quot; (positive pole) and it resulted in faster playback. I couldn't find a bend to make it slower but I found a other way to pitch down (slow down), wich I'll explain later. *<br /> <br /> Since the hard &quot;wired connection&quot; is only able to make the playback very fast or normal (if not connected), I needed to find a way to get different resistances and one common way to do so is, to simply touch the contacts with your finger. Moving and pressing changes the resistance and also the current that is flowing and at the end the speed of playback and so the pitch. I extended the wires of the bend I found and connected them to a rubber pushbutton where i removed the coating from and scratched the PCB so the copper contact was exposed to touch. <br /> <br /> At the end, I putted the bended circuit in a happy meal plastic book and installed all the necessary components in the book casing. I also added two screws to be able to push the buttons from outside, when the book case is closed.<br /> <br /> The most important modification was also to add a 3.5mm headphone jack to the toy/instrument/machine.<br /> <br /> &lt;nowiki&gt;*&lt;/nowiki&gt;If you record something in the pitched up state, with your finger pressed on the open contacts and then remove them, it will be pitched down.<br /> <br /> If you make a really short recording and keep the play button pushed down, it will loop the playback.<br /> [[File:PCB .png|left|thumb|PCB]]<br /> [[File:Install in book case with battery pack.png|left|thumb]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137200 2024-02-14T18:45:50Z

<p>Frederic Schmidt: </p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> == The Pitchman ==<br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing. <br /> <br /> with the potentiometer, you can change the resistance and so the speed (Pitch) <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic 2.png|left|thumb|398x398px|circuit schematic]]I used only four buttons and potentiometers and did the wiring the same way as shown in the picture to the left, if you click on the picture, you'll see a bigger version and also the tiny descriptions become more visible.<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> For my version, I made some kind of handheld thing with all the buttons and potentiometers inside a transparent cassette case.<br /> [[File:Handheld pitch trigger.png|left|thumb|1003x1003px|handheld pitch trigger with pitch set]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Use of spacers.png|left|thumb|use of spacers]]<br /> The buttons were sourced from an old children's toy that I also found at the recycling facility, the potentiometers were ordered in a set online with different values.<br /> <br /> At the end, i was able to set different speeds with the potentiometers and trigger them with the four buttons. <br /> <br /> ===== TAPES: =====<br /> I used a tape with recordings of bird voices that sounded very weird but still like birds but different species <br /> <br /> if you pitch them up and down and i also used a tape loop with only one Synth sine wave on it that I was able to pitch up and down to a specific tone with the help of a guitar tuner.<br /> <br /> If you use two buttons, the values are added to each other and you can play some kind of portamento.<br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Video Pitchman.mp4|thumb|Video Pitchman|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> == The book of repetitions ==<br /> For the book of repetitions, I sourced a small PCB of an old children's toy that was used to record and play back ca. 10 sec of sound controlled by two buttons, one to record as long as you hold it down and one to play back the recording function used also a beep sound to indicate start and end of the recording.<br /> <br /> To make it more fun, I used a technique called [https://de.wikipedia.org/wiki/Circuit_bending circuit bending]. and did some research on this. <br /> <br /> I found out, that this small PCBs of children's toys, with the ability of playing back sounds (also if they are fixed and not changeable), are using some kind of oscillator as a reference for the playback speed. You'll find it under the black dot on the PCB. I poked around with some wires and soon found the right spot to install a bend. I connected a small resistor next to the playback circuit to &quot;high&quot; (positive pole) and it resulted in faster playback. I couldn't find a bend to make it slower but I found a other way to pitch down (slow down), wich I'll explain later. *<br /> <br /> Since the hard &quot;wired connection&quot; is only able to make the playback very fast or normal (if not connected), I needed to find a way to get different resistances and one common way to do so is, to simply touch the contacts with your finger. Moving and pressing changes the resistance and also the current that is flowing and at the end the speed of playback and so the pitch. I extended the wires of the bend I found and connected them to a rubber pushbutton where i removed the coating from and scratched the PCB so the copper contact was exposed to touch. <br /> <br /> At the end, I putted the bended circuit in a happy meal plastic book and installed all the necessary components in the book casing. I also added two screws to be able to push the buttons from outside, when the book case is closed.<br /> <br /> The most important modification was also to add a 3.5mm headphone jack to the toy/instrument/machine.<br /> <br /> &lt;nowiki&gt;*&lt;/nowiki&gt;If you record something in the pitched up state, with your finger pressed on the open contacts and then remove them, it will be pitched down.<br /> <br /> If you make a really short recording and keep the play button pushed down, it will loop the playback.<br /> [[File:PCB .png|left|thumb|PCB]]<br /> [[File:Install in book case with battery pack.png|left|thumb]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137199 2024-02-14T18:45:24Z

<p>Frederic Schmidt: </p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> == The Pitchman ==<br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing. <br /> <br /> with the potentiometer, you can change the resistance and so the speed (Pitch) <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic 2.png|left|thumb|398x398px|circuit schematic]]I used only four buttons and potentiometers and did the wiring the same way as shown in the picture to the left, if you click on the picture, you'll see a bigger version and also the tiny descriptions become more visible.<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> For my version, I made some kind of handheld thing with all the buttons and potentiometers inside a transparent cassette case.<br /> [[File:Handheld pitch trigger.png|left|thumb|1003x1003px|handheld pitch trigger with pitch set]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Use of spacers.png|left|thumb|use of spacers]]<br /> The buttons were sourced from an old children's toy that I also found at the recycling facility, the potentiometers were ordered in a set online with different values.<br /> <br /> At the end, i was able to set different speeds with the potentiometers and trigger them with the four buttons. <br /> <br /> ===== TAPES: =====<br /> I used a tape with recordings of bird voices that sounded very weird but still like birds but different species <br /> <br /> if you pitch them up and down and i also used a tape loop with only one Synth sine wave on it that I was able to pitch up and down to a specific tone with the help of a guitar tuner.<br /> <br /> If you use two buttons, the values are added to each other and you can play some kind of portamento.<br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Video Pitchman.mp4|thumb|Video Pitchman|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> == The book of repetitions ==<br /> For the book of repetitions, I sourced a small PCB of an old children's toy that was used to record and play back ca. 10 sec of sound controlled by two buttons, one to record as long as you hold it down and one to play back the recording function used also a beep sound to indicate start and end of the recording.<br /> <br /> To make it more fun, I used a technique called [https://de.wikipedia.org/wiki/Circuit_bending circuit bending]. and did some research on this. <br /> <br /> I found out, that this small PCBs of children's toys, with the ability of playing back sounds (also if they are fixed and not changeable), are using some kind of oscillator as a reference for the playback speed. You'll find it under the black dot on the PCB. I poked around with some wires and soon found the right spot to install a bend. I connected a small resistor next to the playback circuit to &quot;high&quot; (positive pole) and it resulted in faster playback. I couldn't find a bend to make it slower but I found a other way to pitch down (slow down), wich I'll explain later. *<br /> <br /> Since the hard &quot;wired connection&quot; is only able to make the playback very fast or normal (if not connected), I needed to find a way to get different resistances and one common way to do so is, to simply touch the contacts with your finger. Moving and pressing changes the resistance and also the current that is flowing and at the end the speed of playback and so the pitch. I extended the wires of the bend I found and connected them to a rubber pushbutton where i removed the coating from and scratched the PCB so the copper contact was exposed to touch. <br /> <br /> At the end, I putted the bended circuit in a happy meal plastic book and installed all the necessary components in the book casing. I also added two screws to be able to push the buttons from outside, when the book case is closed.<br /> <br /> The most important modification was also to add a 3.5mm headphone jack to the toy/instrument/machine.<br /> <br /> &lt;nowiki&gt;*&lt;/nowiki&gt;If you record something in the pitched up state, with your finger pressed on the open contacts and then remove them, it will be pitched down.<br /> <br /> If you make a really short recording and keep the play button pushed down, it will loop the playback.<br /> [[File:PCB .png|left|thumb|PCB]]<br /> [[File:Install in book case with battery pack.png|left|thumb]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137198 2024-02-14T18:44:58Z

<p>Frederic Schmidt: </p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> == The Pitchman ==<br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing. <br /> <br /> with the potentiometer, you can change the resistance and so the speed (Pitch) <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic 2.png|left|thumb|398x398px|circuit schematic]]I used only four buttons and potentiometers and did the wiring the same way as shown in the picture to the left, if you click on the picture, you'll see a bigger version and also the tiny descriptions become more visible.<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> For my version, I made some kind of handheld thing with all the buttons and potentiometers inside a transparent cassette case.<br /> [[File:Handheld pitch trigger.png|left|thumb|1003x1003px|handheld pitch trigger with pitch set]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Use of spacers.png|left|thumb|use of spacers]]<br /> The buttons were sourced from an old children's toy that I also found at the recycling facility, the potentiometers were ordered in a set online with different values.<br /> <br /> At the end, i was able to set different speeds with the potentiometers and trigger them with the four buttons. <br /> <br /> ===== TAPES: =====<br /> I used a tape with recordings of bird voices that sounded very weird but still like birds but different species <br /> <br /> if you pitch them up and down and i also used a tape loop with only one Synth sine wave on it that I was able to pitch up and down to a specific tone with the help of a guitar tuner.<br /> <br /> If you use two buttons, the values are added to each other and you can play some kind of portamento.<br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Video Pitchman.mp4|thumb|Video Pitchman|left]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> == The book of repetitions ==<br /> For the book of repetitions, I sourced a small PCB of an old children's toy that was used to record and play back ca. 10 sec of sound controlled by two buttons, one to record as long as you hold it down and one to play back the recording function used also a beep sound to indicate start and end of the recording.<br /> <br /> To make it more fun, I used a technique called [https://de.wikipedia.org/wiki/Circuit_bending circuit bending]. and did some research on this. <br /> <br /> I found out, that this small PCBs of children's toys, with the ability of playing back sounds (also if they are fixed and not changeable), are using some kind of oscillator as a reference for the playback speed. You'll find it under the black dot on the PCB. I poked around with some wires and soon found the right spot to install a bend. I connected a small resistor next to the playback circuit to &quot;high&quot; (positive pole) and it resulted in faster playback. I couldn't find a bend to make it slower but I found a other way to pitch down (slow down), wich I'll explain later. *<br /> <br /> Since the hard &quot;wired connection&quot; is only able to make the playback very fast or normal (if not connected), I needed to find a way to get different resistances and one common way to do so is, to simply touch the contacts with your finger. Moving and pressing changes the resistance and also the current that is flowing and at the end the speed of playback and so the pitch. I extended the wires of the bend I found and connected them to a rubber pushbutton where i removed the coating from and scratched the PCB so the copper contact was exposed to touch. <br /> <br /> At the end, I putted the bended circuit in a happy meal plastic book and installed all the necessary components in the book casing. I also added two screws to be able to push the buttons from outside, when the book case is closed.<br /> <br /> The most important modification was also to add a 3.5mm headphone jack to the toy/instrument/machine.<br /> <br /> &lt;nowiki&gt;*&lt;/nowiki&gt;If you record something in the pitched up state, with your finger pressed on the open contacts and then remove them, it will be pitched down.<br /> <br /> If you make a really short recording and keep the play button pushed down, it will loop the playback.<br /> [[File:PCB .png|left|thumb|PCB]]<br /> [[File:Install in book case with battery pack.png|left|thumb]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137197 2024-02-14T18:44:10Z

<p>Frederic Schmidt: </p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> == The Pitchman ==<br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing. <br /> <br /> with the potentiometer, you can change the resistance and so the speed (Pitch) <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic 2.png|left|thumb|398x398px|circuit schematic]]I used only four buttons and potentiometers and did the wiring the same way as shown in the picture to the left, if you click on the picture, you'll see a bigger version and also the tiny descriptions become more visible.<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> For my version, I made some kind of handheld thing with all the buttons and potentiometers inside a transparent cassette case.<br /> [[File:Handheld pitch trigger.png|left|thumb|1003x1003px|handheld pitch trigger with pitch set]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Use of spacers.png|left|thumb|use of spacers]]<br /> The buttons were sourced from an old children's toy that I also found at the recycling facility, the potentiometers were ordered in a set online with different values.<br /> <br /> At the end, i was able to set different speeds with the potentiometers and trigger them with the four buttons. <br /> <br /> ===== TAPES: =====<br /> I used a tape with recordings of bird voices that sounded very weird but still like birds but different species <br /> <br /> if you pitch them up and down and i also used a tape loop with only one Synth sine wave on it that I was able to pitch up and down to a specific tone with the help of a guitar tuner.<br /> <br /> If you use two buttons, the values are added to each other and you can play some kind of portamento.<br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Video Pitchman.mp4|thumb|Video Pitchman|border|left]]<br /> <br /> <br /> <br /> <br /> <br /> == The book of repetitions ==<br /> For the book of repetitions, I sourced a small PCB of an old children's toy that was used to record and play back ca. 10 sec of sound controlled by two buttons, one to record as long as you hold it down and one to play back the recording function used also a beep sound to indicate start and end of the recording.<br /> <br /> To make it more fun, I used a technique called [https://de.wikipedia.org/wiki/Circuit_bending circuit bending]. and did some research on this. <br /> <br /> I found out, that this small PCBs of children's toys, with the ability of playing back sounds (also if they are fixed and not changeable), are using some kind of oscillator as a reference for the playback speed. You'll find it under the black dot on the PCB. I poked around with some wires and soon found the right spot to install a bend. I connected a small resistor next to the playback circuit to &quot;high&quot; (positive pole) and it resulted in faster playback. I couldn't find a bend to make it slower but I found a other way to pitch down (slow down), wich I'll explain later. *<br /> <br /> Since the hard &quot;wired connection&quot; is only able to make the playback very fast or normal (if not connected), I needed to find a way to get different resistances and one common way to do so is, to simply touch the contacts with your finger. Moving and pressing changes the resistance and also the current that is flowing and at the end the speed of playback and so the pitch. I extended the wires of the bend I found and connected them to a rubber pushbutton where i removed the coating from and scratched the PCB so the copper contact was exposed to touch. <br /> <br /> At the end, I putted the bended circuit in a happy meal plastic book and installed all the necessary components in the book casing. I also added two screws to be able to push the buttons from outside, when the book case is closed.<br /> <br /> The most important modification was also to add a 3.5mm headphone jack to the toy/instrument/machine.<br /> <br /> &lt;nowiki&gt;*&lt;/nowiki&gt;If you record something in the pitched up state, with your finger pressed on the open contacts and then remove them, it will be pitched down.<br /> <br /> If you make a really short recording and keep the play button pushed down, it will loop the playback.<br /> [[File:PCB .png|left|thumb|PCB]]<br /> [[File:Install in book case with battery pack.png|left|thumb]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=File:Install_in_book_case_with_battery_pack.png&diff=137196 2024-02-14T18:37:26Z

<p>Frederic Schmidt: </p> <hr /> <div>Install in book case with battery pack</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=File:PCB_.png&diff=137195 2024-02-14T18:33:46Z

<p>Frederic Schmidt: </p> <hr /> <div>PCB</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137194 2024-02-14T17:48:52Z

<p>Frederic Schmidt: </p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> === The Pitchman ===<br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing. <br /> <br /> with the potentiometer, you can change the resistance and so the speed (Pitch) <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic 2.png|left|thumb|398x398px|circuit schematic]]I used only four buttons and potentiometers and did the wiring the same way as shown in the picture to the left, if you click on the picture, you'll see a bigger version and also the tiny descriptions become more visible.<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> For my version, I made some kind of handheld thing with all the buttons and potentiometers inside a transparent cassette case.<br /> [[File:Handheld pitch trigger.png|left|thumb|1003x1003px|handheld pitch trigger with pitch set]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Use of spacers.png|left|thumb|use of spacers]]<br /> The buttons were sourced from an old children's toy that I also found at the recycling facility, the potentiometers were ordered in a set online with different values.<br /> <br /> At the end, i was able to set different speeds with the potentiometers and trigger them with the four buttons. <br /> <br /> ===== TAPES: =====<br /> I used a tape with recordings of bird voices that sounded very weird but still like birds but different species <br /> <br /> if you pitch them up and down and i also used a tape loop with only one Synth sine wave on it that I was able to pitch up and down to a specific tone with the help of a guitar tuner.<br /> <br /> If you use two buttons, the values are added to each other and you can play some kind of portamento.<br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Video Pitchman.mp4|thumb|Video Pitchman]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137193 2024-02-14T17:46:28Z

<p>Frederic Schmidt: </p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> === The Pitchman ===<br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing. <br /> <br /> with the potentiometer, you can change the resistance and so the speed (Pitch) <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic 2.png|left|thumb|398x398px|circuit schematic]]I used only four buttons and potentiometers and did the wiring the same way as shown in the picture to the left, if you click on the picture, you'll see a bigger version and also the tiny descriptions become more visible.<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> For my version, I made some kind of handheld thing with all the buttons and potentiometers inside a transparent cassette case.<br /> [[File:Handheld pitch trigger.png|left|thumb|1003x1003px|handheld pitch trigger with pitch set]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Use of spacers.png|left|thumb|use of spacers]]<br /> The buttons were sourced from an old children's toy that I also found at the recycling facility, the potentiometers were ordered in a set online with different values.<br /> <br /> At the end, i was able to set different speeds with the potentiometers and trigger them with the four buttons. <br /> <br /> ===== TAPES: =====<br /> I used a tape with recordings of bird voices that sounded very weird but still like birds but different species <br /> <br /> if you pitch them up and down and i also used a tape loop with only one Synth sine wave on it that I was able to pitch up and down to a specific tone with the help of a guitar tuner.<br /> <br /> If you use two buttons, the values are added to each other and you can play some kind of portamento.<br /> <br /> <br /> <br /> [[File:Video Pitchman.mp4|thumb|Video Pitchman]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=File:Video_Pitchman.mp4&diff=137192 2024-02-14T17:44:26Z

<p>Frederic Schmidt: </p> <hr /> <div>Video Pitchman</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137191 2024-02-14T17:30:42Z

<p>Frederic Schmidt: </p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> === The Pitchman ===<br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing. <br /> <br /> with the potentiometer, you can change the resistance and so the speed (Pitch) <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic 2.png|left|thumb|398x398px|circuit schematic]]I used only four buttons and potentiometers and did the wiring the same way as shown in the picture to the left, if you click on the picture, you'll see a bigger version and also the tiny descriptions become more visible.<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> For my version, I made some kind of handheld thing with all the buttons and potentiometers inside a transparent cassette case.<br /> [[File:Handheld pitch trigger.png|left|thumb|1003x1003px|handheld pitch trigger with pitch set]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> [[File:Use of spacers.png|left|thumb|use of spacers]]<br /> The buttons were sourced from an old children's toy that I also found at the recycling facility, the potentiometers were ordered in a set online with different values.<br /> <br /> At the end, i was able to set different speeds with the potentiometers and trigger them with the four buttons. <br /> <br /> ===== TAPES: =====<br /> I used a tape with recordings of bird voices that sounded very weird but still like birds but different species <br /> <br /> if you pitch them up and down and i also used a tape loop with only one Synth sine wave on it that I was able to pitch up and down to a specific tone with the help of a guitar tuner.<br /> <br /> If you use two buttons, the values are added to each other and you can play some kind of portamento.</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=File:Use_of_spacers.png&diff=137190 2024-02-14T16:58:06Z

<p>Frederic Schmidt: </p> <hr /> <div>use of spacers</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=File:Handheld_pitch_trigger.png&diff=137189 2024-02-14T16:55:35Z

<p>Frederic Schmidt: </p> <hr /> <div>handheld pitch trigger</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137188 2024-02-14T16:42:07Z

<p>Frederic Schmidt: </p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> The Pitchman<br /> <br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing. <br /> <br /> with the potentiometer, you can change the resistance and so the speed (Pitch) <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic 2.png|left|thumb|398x398px|circuit schematic]]I used only four buttons and potentiometers and did the wiring the same way as shown in the picture to the left, if you cllick on the picture you'll see a bigger version and also the tiny descriptions become more visible.</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137187 2024-02-14T16:36:48Z

<p>Frederic Schmidt: </p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> The Pitchman<br /> <br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing. <br /> <br /> with the potentiometer, you can change the resistance and so the speed (Pitch) <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic 2.png|left|thumb|398x398px|circuit schematic]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=File:Circuit_schematic_2.png&diff=137186 2024-02-14T16:34:58Z

<p>Frederic Schmidt: </p> <hr /> <div>circuit schematic</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137185 2024-02-14T16:33:18Z

<p>Frederic Schmidt: </p> <hr /> <div>= '''Tired Machines Orchestra''' =<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> The Pitchman<br /> <br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer|336x336px]]<br /> [[File:Pot and wires routing.png|thumb|764x764px|external potentiometer and wires routing]]<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> Now I was able to play back the cassette at different speeds (pitch it up and down) and also change the pitch while playing. <br /> <br /> with the potentiometer, you can change the resistance and so the speed (Pitch) <br /> <br /> === Version 2.0 ===<br /> So I came up with the idea to have several potentiometers and some trigger buttons so set particular resistances (Speeds-&gt;Pitches) and trigger them with a button.<br /> <br /> I found a circuit to accomplish this.<br /> [[File:Circuit schematic.png|thumb|circuit schematic]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=File:Circuit_schematic.png&diff=137184 2024-02-14T16:32:37Z

<p>Frederic Schmidt: </p> <hr /> <div>circuit schematic</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137183 2024-02-14T16:19:31Z

<p>Frederic Schmidt: </p> <hr /> <div>== '''Tired Machines Orchestra''' ==<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> The Pitchman<br /> <br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> [[File:Pot and wires routing.png|center|thumb|792x792px|potentiometer and wires routing]]<br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137182 2024-02-14T16:17:32Z

<p>Frederic Schmidt: </p> <hr /> <div>== '''Tired Machines Orchestra''' ==<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> The Pitchman<br /> <br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was, to put a different one with a bigger range to the outside of the player to make it accessible while playing.<br /> <br /> The slightly thicker cables in black, blue and green were soldered to the electrical contacts where the old factory potentiometer was sitting.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=File:Pot_and_wires_routing.png&diff=137181 2024-02-14T16:15:06Z

<p>Frederic Schmidt: </p> <hr /> <div> external potentiometer and wires routing</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137180 2024-02-14T16:00:03Z

<p>Frederic Schmidt: </p> <hr /> <div>== '''Tired Machines Orchestra''' ==<br /> <br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two instruments out of old electronics, that someone else considered to be trash.<br /> <br /> I found them at the recycling facility where we picked up the tired machines that still worked fine (most of them)<br /> <br /> The Pitchman<br /> <br /> The Pitchman was built out of an old Panasonic Walkman that still worked fine, when it fell into my hands and it still does, but now it has some extra features.<br /> <br /> According to the speed, of the spinning motor inside cassette player, you are able to change the Pitch of whatever sound is recorded on the cassette.<br /> <br /> I did some research on this and found out, that there is a small potentiometer where they set the speed at the factory to make the player spin at the right speed. <br /> <br /> I opened the player and found the potentiometer and soldered it out. Next step was. to put a different one with a bigger range on the outside of the player to make it accessible while playing.<br /> [[File:Open cassette player.png|left|thumb|open cassette player with longer wires for the potentiometer]]</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=File:Open_cassette_player.png&diff=137179 2024-02-14T15:58:50Z

<p>Frederic Schmidt: </p> <hr /> <div>open cassette player with longer wires for the potentiometer</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=Frederic_Schmidt&diff=137178 2024-02-14T15:38:16Z

<p>Frederic Schmidt: -</p> <hr /> <div>== '''Tired Machines Orchestra''' ==<br /> <br /> <br /> For the Tired Machines Orchestra course, I was building two things</div>

Frederic Schmidt https://www.uni-weimar.de/kunst-und-gestaltung/wiki/index.php?title=GMU:Tired_Machines_Orchestra&diff=137177 2024-02-13T16:26:12Z

<p>Frederic Schmidt: added Name, don&#039;t know why its red</p> <hr /> <div><br /> [[:Category:Fachmodul|Werk/Fachmodul]]<br /> <br /> ''Lecturer:'' [[Christian Doeller]]<br /> <br /> ''Credits:'' 6 [[ECTS]], 2 [[SWS]]<br /> <br /> ''Dates:'' October 20-22, November 3-5<br /> <br /> ''Times:'' Friday 9:30 - 17:00, Saturday / Sunday 13:00 - 17:00<br /> <br /> ''Venue:'' DIY Electronics Lab, Bauhausstr. 15, basement<br /> <br /> ''First meeting:'' October 20, 9.30 (excursion)<br /> <br /> Soundfiles: https://cloud.uni-weimar.de/s/pz4rJE4Ky4C94Mw<br /> <br /> &lt;u&gt;Video Link:&lt;/u&gt; https://www.youtube.com/watch?v=-eGINgA--p8&amp;ab_channel=KTL011<br /> <br /> <br /> [[File:TMO-banner-2-doeller.jpg|frameless|1080x1080px]]<br /> <br /> <br /> <br /> &lt;u&gt;Description:&lt;/u&gt;<br /> [[File:DSC05266 CD small.jpg|alt=Tired Machines Orchestra - Work in Progress|thumb|474x474px|Tired Machines Orchestra - Work in Progress]]<br /> Tired machines, exhausted, worn out and carelessly discarded on the garbage dumps of our consumer paradises find their way into a new, cultivated afterlife. They play the first violins, flutes and basses of a post-apocalyptic ensemble, the Tired Machines Orchestra.<br /> <br /> This course is for anyone who feels sorry for technical devices on the margins of society; for hardware hackers, tinkerers, musicians, DIY electronic enthusiasts, and anyone who wants to become one. Plunder your basements and bring your unloved or broken cassette players, kitchen appliances, printers, hair dryers or fans, disassemble them and turn them into soundful musical instruments.<br /> <br /> This is a hands-on course. We will explore fundamentals of DIY-electronics, sensing, and microcontroller programming; look at upcycling, destruction, transformation, and recovery processes; and examine sustainable strategies in media art. As part of the seminar, we will go on a field trip to a local electronics recycling company. There we will learn about the process of disposing and recycling e-waste and go on the hunt for materials to experiment with.<br /> <br /> Tired Machines Orchestra is a block module that will take place over two weekends (October 20-22, November 3-5). Prototypes are to be developed independently in between our meetings. Requirements: Punctuality, regular attendance and a fascination for electronics, sound experiments and tinkering. Open to all disciplines, no prior knowledge necessary.<br /> <br /> The finale of the course will be a collective concert.<br /> <br /> <br /> &lt;u&gt;Participants:&lt;/u&gt;<br /> *[[AMELIA EICKHOFF]]<br /> *[[User:BlancaRodriguez|Blanca Rodriguez]]<br /> *[[Parisa Salimi]]<br /> *[[Aleena Raza]]<br /> *[[Frederic Schmidt]]<br /> *...<br /> &lt;gallery mode=&quot;nolines&quot;&gt;<br /> File:CD 08185 CD small.jpg<br /> File:CD 08127 CD small.jpg<br /> File:CD 08169 CD small.jpg<br /> File:CD 08053 CD small.jpg<br /> File:CD 08140 CD small.jpg<br /> File:CD 08158 CD small.jpg<br /> File:CD 08160 CD small.jpg<br /> File:CD 08145 CD small.jpg<br /> File:CD 08149 CD small.jpg<br /> File:CD 08093 CD small.jpg<br /> File:CD 08075 CD small.jpg<br /> File:CD 08059 CD small.jpg<br /> File:CD 08100 CD small.jpg<br /> File:CD 08182 CD small.jpg<br /> File:CD 08212 CD small.jpg<br /> &lt;/gallery&gt;<br /> <br /> <br /> &lt;u&gt;Artists / Links:&lt;/u&gt;<br /> *Ei Wada / Open Reel Ensemble [https://www.youtube.com/watch?v=PJudRvR3FBk&amp;ab_channel=IbakenGee]<br /> *Electronicos Fantasticos [https://www.youtube.com/watch?v=A0VYsiMtrNE&amp;ab_channel=ELECTRONICOSFANTASTICOS%21]<br /> *The Floppotron [https://www.youtube.com/watch?v=kCCXRerqaJI&amp;ab_channel=Pawe%C5%82Zadro%C5%BCniak]<br /> *Darsha Hewitt [https://darsha.org/works/]<br /> *Zimoun [https://www.zimoun.net/]<br /> *Look Mum No Computer [https://www.youtube.com/watch?v=GYLBjScgb7o&amp;t=267s&amp;ab_channel=LOOKMUMNOCOMPUTER]<br /> *Tarek Atoui [https://www.youtube.com/watch?v=yTYKt8_Txc0&amp;ab_channel=PalazzoGrassi-PuntadellaDogana]<br /> *Angelika Hoeger [https://www.youtube.com/watch?v=QLmlxWHbfXM&amp;t=6s&amp;ab_channel=dikajora]<br /> *Anna Schimkat [https://www.youtube.com/watch?v=6Pyx5m9aONE&amp;ab_channel=SELBSTGEBAUTEMUSIK]<br /> *John Cage [https://www.youtube.com/watch?v=gXOIkT1-QWY&amp;ab_channel=NaveforEva]<br /> *Gil Delindro [http://www.delindro.com/sound-performance.html]<br /> *Thessia Machado [https://vimeo.com/88451951]<br /> *Samson Young [http://www.teamgal.com/artists/samson_young/exhibitions/324/pastoral_music]<br /> *Christian Faubel [https://christian.faubel.derstrudel.org/almost-like-music/]<br /> *Electric Waste Orchestra [https://www.youtube.com/playlist?list=PLEctBUhq6Uce-q0gmiQjn0MTcW6iiKwll]<br /> *''.... ---&gt; please extend this list''<br /> <br /> <br /> &lt;u&gt;Schedule:&lt;/u&gt;<br /> <br /> October 20, 9:30 – 17:00<br /> :- excursion to e-waste recycling facility<br /> :- examples, positions, artists<br /> :- tear down session<br /> October 21, 13:00 – 17:00<br /> :- DIY electronics basics<br /> :- open tinkering session<br /> October 22, 13:00 – 17:00<br /> :- Arduino basics / motor controllers<br /> :- open tinkering session<br /> :- preview of prototypes<br /> :<br /> October 22 – November 3<br /> :- self-guided work on prototypes<br /> :<br /> November 3, 9:30 – 17:00<br /> :- updates of prototype status<br /> :- open tinkering session<br /> November 4, 13:00 – 17:00<br /> :- open tinkering session<br /> November 5, 13:00 – 17:00<br /> :- finalization<br /> :- concert<br /> <br /> <br /> &lt;u&gt;Topics:&lt;/u&gt;<br /> <br /> Technology:<br /> *Basics of electronics and hardware hacking<br /> *Getting started with Arduino<br /> *Getting familiar with motor drivers, relays and MOSFETs<br /> Art &amp; Thinking:<br /> *Contemporary (media) art positions that relate to the subject matter<br /> *Media Art &amp; Sustainability, e-waste, hardware hacking<br /> <br /> <br /> &lt;u&gt;Literature:&lt;/u&gt;<br /> *Make: Getting Started with Arduino, EAN 9781449363314<br /> *Arduino Cookbook, O’REILLY, German/English, ISBN Print: 978-3-86899-353-0<br /> *Arduino Tutorials 1: https://www.arduino.cc/en/Tutorial/HomePage<br /> *Arduino Tutorials 2: https://www.youtube.com/channel/UCfYfK0tzHZTpNFrc_NDKfTA<br /> *Jennifer Gabrys: Digital Rubbish, A Natural History of Electronics, https://monoskop.org/images/b/ba/Gabrys_Jennifer_Digital_Rubbish_A_Natural_History_of_Electronics.pdf<br /> <br /> <br /> &lt;u&gt;Materials&lt;/u&gt;<br /> *please bring your laptop / computer<br /> *please bring your Arduino hardware and electronics (if available)<br /> *bring a disused / unloved device to experiment with and keep your eyes open on the streets ;)<br /> <br /> <br /> &lt;u&gt;Language &amp; skill level:&lt;/u&gt;<br /> *The module will be held in English, unless all participants are speaking German.<br /> *No prior knowledge of electronics/programming is required.<br /> <br /> <br /> &lt;u&gt;Criteria for passing:&lt;/u&gt;<br /> *be on time, attend the classes<br /> *self-guided work between our meetings<br /> *document exercises on the wiki<br /> *take part in the Tired Machines Orchestra</div>

Frederic Schmidt