audioBufferTest.html

<!DOCTYPE HTML>
<html>
<head>
    <title>trvial audio generator node example</title>
</head>
<body>
    'enter' -- play tone <br>
    'esc' -- stop tone
        <script type="text/javascript">


            var context = webkitAudioContext && new webkitAudioContext();
            context = context || (AudioContext && new AudioContext());

            var t = 0;
             var node = context.createJavaScriptNode(256, 0, 1);
             node.onaudioprocess = function (event) {
               var outBuf = event.outputBuffer;
                var channel = outBuf.getChannelData(0);
                var count = channel.length;
                for(var i = 0; i < count; i++) {
                   channel[i] = Math.sin(t++/10);
                }

              }

           document.onkeydown = function(event) {

               if(event.keyCode == 13)
                  node.connect(context.destination);
               if(event.keyCode == 27)
                  node.disconnect();
           }

        </script>
</body>
</html>