modulation_ratio = 2;

modulation_depth = 100;

​

let carrier, modulator, playing;

​

function setup() {

  createCanvas(400, 400);

  carrier = new p5.Oscillator(base_freq);

  modulator = new p5.Oscillator(base_freq * modulation_ratio);

  modulator.disconnect();

  modulator.amp(modulation_depth);

  carrier.freq(modulator);

​

  carrier.start();

  playing = true;

  modulator.start();

}

​

function draw() {

  background(220);

}