IFD:EAI SoS21/course material/Session 6: Getting Started with Teensyduino: Difference between revisions

IFD:EAI SoS21/course material/Session 6: Getting Started with Teensyduino (view source)

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 If you were successful with setting up the teensy and piezo microphone, you can make a step further and learn how to wrestle with audio data directly on the teensy!
-We want to call a so called envelope follower, it tracks the peaks of our audio signal and gets the rough volume shape. With the help of the volume (~loudness) of our signal we can detect wether there is vibration on our piezo or not. In rough terms we get the volume envelope in two steps:
+We want to code a so called envelope follower, it tracks the peaks of our audio signal and gets the rough volume shape. With the help of the volume (~loudness) of our signal we can detect wether there is vibration on our piezo or not. In rough terms we get the volume envelope in two steps:
 # get the maximum of the signal samples seen so far