GMU:Speculative Atmospheres II/Sam Ryu

The Light and Resonance in the Air

Speculative Atmospheres ll,WiSe 2021/22

Sound and Light Sensors Experiment with Arduino+Max/Msp by Ryu,Sam

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The sound is generated randomly according to the movement of light. Pitch and velocity change according to light data. Let the light and environment play music.

1.IDEAS

- Mindmap

5 Light sensors are converted into values through Arduino to Max, which are converted to play in a random combination of five tracks of sound. The flow of music continues to change because the soundtrack layers are played differently each time according to the frequency of light.

Light illumination may not be dynamic outdoors in winter, so an environment where light can be used indoors as an alternative, but it would be also possible to use natural light. This is a basic attempt to make the environment compose music.

• Sound material:

Sound collection and recording through field recording. Pieces such as glass, bell, silver ring, wind etc.

-Outdoor Experiment

2.PROCESS

A .Arduino / Sensors

01. Prepared five photoresistors (light sensors).

02. Measuring the lowest/maximum resistance value with a multimeter.

03. The resistance value is calculated according to the following formula.

R2= √R1(max)xR1(Min)

04. Connect the five photoresistors with the appropriate register (R2) to the breadboard.

B. Arduino

01. Initialize five sensors, receive data values from Arduino, and send them to Max.

//int val[5]; array.5 light sensors total

void setup()

{
 Serial.begin(9600); //Serial Communication set up
}

void loop()

{
 for(int i = 0; i < 5; i++){
   val[i] = analogRead(i);
   Serial.print(val[i]);
   Serial.print(" ");
}
 Serial.println();
 delay(10); 
}
 

C. MAX/MSP

01. Receive data transmitted from Arduino through Arduino and Max connection patches.

02. Sending data to five tracks by applying speed control with random values.

03. Sound generated by the data value of light.