<html>
<head>
<script>
function boom() {
  var r0=new AudioContext();

  var cm=r0.createChannelMerger(20);

  var o1=r0.createOscillator();
  var o2=r0.createOscillator();

  var pw=r0.createPeriodicWave(new Float32Array(4),new Float32Array(4));
  o2.setPeriodicWave(pw);

  o1.connect(cm);
  cm.connect(o2.frequency);

  o1.start();
  o2.start(0.476);
}
</script>
</head>
<body onload="boom();"></body>
</html>
