owenkellogg/audio_flobbing.html

## audio_flobbing.html
<body>
<script>
  var ctx = new AudioContext();
  var tone = ctx.createOscillator();
  var gain = ctx.createGain();

  var high = 220;
  var low  = 22;

  var boing = function(x) {
    return (Math.exp(x) - 1) / (Math.E - 1);
  };

  var now = function(period) {
    return 0.5 * (Math.sin(Date.now() * period) + 1);
  };

  gain.connect(ctx.destination);
  tone.connect(gain);

  setInterval(function() {
    gain.gain.value = boing(now(0.002));
  }, 10);

  tone.type = 'triangle';

  setInterval(function() {
    tone.frequency.value = low + (high - low) * boing(now(0.001));
  }, 300);

  tone.start();
</script>
</body>
	<body>
	<script>
	var ctx = new AudioContext();
	var tone = ctx.createOscillator();
	var gain = ctx.createGain();

	var high = 220;
	var low = 22;

	var boing = function(x) {
	return (Math.exp(x) - 1) / (Math.E - 1);
	};

	var now = function(period) {
	return 0.5 * (Math.sin(Date.now() * period) + 1);
	};

	gain.connect(ctx.destination);
	tone.connect(gain);

	setInterval(function() {
	gain.gain.value = boing(now(0.002));
	}, 10);

	tone.type = 'triangle';

	setInterval(function() {
	tone.frequency.value = low + (high - low) * boing(now(0.001));
	}, 300);

	tone.start();
	</script>
	</body>