walle.js

walle.js

var WallE = function () {
  var context = new webkitAudioContext();
  this.osc = context.createOscillator();
  this.analyser = context.createAnalyser();
  
  this.osc.connect(this.analyser);
  this.analyser.connect(context.destination);

  this.osc.start(0);
};

WallE.prototype.talk = function () {
	var that = this;
	setTimeout(function () {
		that.osc.frequency.value = parseInt(Math.random() * 500, 10);
        that.talk();
	}, parseInt(Math.random() * 2000, 10))
};

var wallE = new WallE();
wallE.talk();