Sound Visualization

rumlac

Hello, I am trying to figure out how to create horizontal scanning lines starting from the top left corner and then clearing when the bottom right hand corner is reached. I am using points to form the line and I am trying to affect the y value of each point using the microphone, essentially visualizing something like sound waves. I am using the krister.ess library to get the sound values. This is the code for my progress so far:

import krister.Ess.*;

FFT myfft;
AudioInput myinput;

int bufferSize=512;
int x, y, s;
int gap = 60;

void setup() {
  size(800, 600);
  stroke(0);
  frameRate(5);
  reset();

  Ess.start(this);
  myinput=new AudioInput(bufferSize);
  myfft=new FFT(bufferSize*2);
  myinput.start();

  myfft.damp(0.1);
  myfft.equalizer(true);
  myfft.limits(.01, .01);
}

void reset() {
  background(255);
  x = 0;
  y = 0;
}

void draw() {

  for (int i=0; i<bufferSize;i++) {

     myfft.spectrum[i] = myfft.spectrum[i]*1000;
    float yValue = constrain(myfft.spectrum[i], 1, 3);

    point(x++, myfft.spectrum[i]);

    println(myfft.spectrum[i]);
  }


  //point(x++, y);
  if (x>=width) { 
    y+=gap; 
    x=0;
  }
  if (y>=height) reset();
}

public void audioInputData(AudioInput theInput) {
  myfft.getSpectrum(myinput);
}