​

let sound;

​

function preload() {

  sound = loadSound('bell.mp3');

}

​

function setup() {

  createCanvas(400, 400);

  // sound.play()

  // sound.loop();

}

​

function draw() {

  background(0);

  let volAmount = map(mouseY, height, 0, 0, 1)

  sound.setVolume(volAmount)

  let panAmount = map(mouseX, 0, width, -1, 1)

  sound.pan(panAmount);

  let rateAmount = map(mouseX, 0, width, 0.2, 2)

  sound.rate(rateAmount)

  ellipse(mouseX, mouseY, panAmount * 200, volAmount * 200)

}

​

function mousePressed() {

  // console.log(sound.isPlaying());  

  if (sound.isPlaying()) {

    // sound.stop();

    sound.pause();

  } else {

    sound.play();

  }

}

​

​

​

​

​