devongovett/gist:3789735

## gistfile1.html
<!doctype html>
<script>

function pause() {
    console.log('pause')
    node.disconnect()
}

function play() {
    console.log('play');

    context = new webkitAudioContext();
    node = context.createJavaScriptNode(4096, 2, 2);
    var freq = context.sampleRate / (440 * 2 * Math.PI);
    var x = 0;

    node.onaudioprocess = function(e) {
        console.log('process')
        var data = e.outputBuffer.getChannelData(0);
        for (var i = 0; i < data.length; ++i) {
            data[i] = Math.sin(x++ / freq);
        }
    }

    node.connect(context.destination);
}
</script>
<button onclick="play()">Play</button>
<button onclick="pause()">Pause</button>
	<!doctype html>
	<script>

	function pause() {
	console.log('pause')
	node.disconnect()
	}

	function play() {
	console.log('play');

	context = new webkitAudioContext();
	node = context.createJavaScriptNode(4096, 2, 2);
	var freq = context.sampleRate / (440 * 2 * Math.PI);
	var x = 0;

	node.onaudioprocess = function(e) {
	console.log('process')
	var data = e.outputBuffer.getChannelData(0);
	for (var i = 0; i < data.length; ++i) {
	data[i] = Math.sin(x++ / freq);
	}
	}

	node.connect(context.destination);
	}
	</script>
	<button onclick="play()">Play</button>
	<button onclick="pause()">Pause</button>