I've been working for an embarrassingly long time on this simple adaptation of the SineWave example. I want to have the sound heard for only a certain duration of the program. I'm gonna implement this code with visuals, so I'm using frameCount for a timer:

Code:

import processing.opengl.*;
import ddf.minim.*;
import ddf.minim.signals.*;

Minim minim;
AudioOutput out;
SineWave sound1;
SineWave sound2;
SineWave sound3;
int hertz;

void setup()
{
  size(512, 200, OPENGL);
  frameRate(30);
  
  if (frameCount < 80) {
    hertz = 0;
  } else if (frameCount >= 80 && frameCount < 160) {
    hertz = 440;
  } else {
    hertz = 220;
  }
  minim = new Minim(this);
  // get a line out from Minim, default bufferSize is 1024, default sample rate is 44100, bit depth is 16
  out = minim.getLineOut(Minim.STEREO);
  // create a sine wave Oscillator, set to 440 Hz, at 0.5 amplitude, sample rate from line out
  sound1 = new SineWave(hertz, 0.5, out.sampleRate());
  sound2 = new SineWave(hertz, 0.5, out.sampleRate());
  sound3 = new SineWave(hertz, 0.5, out.sampleRate());
  // set the portamento speed on the oscillator to 200 milliseconds
  sound1.portamento(200);
  sound2.portamento(200);
  sound3.portamento(200);
  // add the oscillator to the line out
  sound1.setFreq(0.4);
  sound1.setFreq(0.5);
  sound1.setFreq(0.6);
  sound1.setPan(285);
  sound1.setPan(285);
  sound1.setPan(285);
  out.addSignal(sound1);
  out.addSignal(sound2);
  out.addSignal(sound3);
}

void draw()
{
  background(0);
  
}

void stop()
{
  out.close();
  minim.stop();
  
  super.stop();
}
 

This producing no (audible) sound. Without the if statement, hard coding the hertz as 440, plays the chord continuously. Do I need to do something in draw()? Or perhaps have a separate method? Any help ASAP will be appreciated.