audioexample.js

var bobAudio;
var annAudio;

function preload() {
  bobAudio = loadSound('beatbox.mp3');
  annAudio = loadSound('beatbox.mp3');
}

function setup() {
  
}

function draw() {
 
  if (bobAudio.isPlaying() == false && annAudio.isPlaying() == false) {
    fill(0);
  } else {
    fill(255);
  }
  
  ellipse(width/2, height/2, 50, 50);
}

function mousePressed() {
  bobAudio.play();
}