microphone.pde

Minim minim;
AudioInput microphoneInput;

class Microphone extends SensorReading {

  AudioInput microphoneInput;
  float amplitude;

  public Microphone(AudioInput micro) {
    super("microphone");
    microphoneInput = micro;
  }

  void init()  {
    amplitude = 0.0f;
  }

  void execute() {
    amplitude = getAmplitude();
    readingDone = true;
    send();
  } 

  void send() {
    OscMessage m = createMessage("/data");
    oscP5.send(m, serverLocation);
  }

  SensorReading createFromMessage(OscMessage msg) {
    Microphone microphone = new Microphone(microphoneInput);
    microphone.amplitude = msg.get(1).floatValue();
    return microphone;
  }

  OscMessage createMessage(String adrPattern) {
    OscMessage m = new OscMessage(adrPattern);
    m.add(name);
    m.add(amplitude);
    return m;
  }

  float getAmplitude() {
    float amplitude =  0.0f;
    if (microphoneInput != null) {
      for (int i = 0; i < microphoneInput.bufferSize() - 1; i++) {
        amplitude += microphoneInput.mix.get(i);
      }
      amplitude /= microphoneInput.bufferSize();
    } else {
      println("Error: no lin-in present: ");
    }
    println("       -  " + amplitude);
    return amplitude;
  }

  void print() {
    println(name + " amplitude: " + amplitude);
  }
}