import krister.Ess.*;
String sndData = "snd.wav";
AudioChannel myChannel;
FFT myFFT;
int bands = 256;
void setup() {
  size(480, 100);
  Ess.start(this);
  myChannel = new AudioChannel(sndData);
  myChannel.play(Ess.FOREVER);
  myFFT = new FFT(bands * 2);
}
void draw() {
  background(#000000);
  myFFT.getSpectrum(myChannel);
  for (int i = 0; i < bands; i++) {
    float y = (myFFT.spectrum[i] * height)*-100+height;
    stroke(#ffffff);
    point(i*2,y);
  }
}
void stop() {
  Ess.stop();
  super.stop();
}