test_pannerNodeChannelCount.html

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<!DOCTYPE HTML>

<html>

<head>

  <title>Test PannerNode directly above</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />

</head>

<body>

<pre id="test">

<script src="webaudio.js" type="text/javascript"></script>

<script class="testbody" type="text/javascript">

var gTest = {

  length: 2048,

  numberOfChannels: 2,

  createGraph(context) {

    var buffer = context.createBuffer(2, 2048, context.sampleRate);

    for (var i = 0; i < 2048; ++i) {

      var sample = Math.sin(440 * 2 * Math.PI * i / context.sampleRate);

      // When mixed into a single channel, this produces silence

      buffer.getChannelData(0)[i] = sample;

      buffer.getChannelData(1)[i] = -sample;

    var panner = context.createPanner();

    panner.positionX.value = 1;

    panner.positionY.value = 2;

    panner.positionZ.value = 3;

    panner.channelCount = 1;

    expectException(function() { panner.channelCount = 3; },

                    DOMException.NOT_SUPPORTED_ERR);

    panner.channelCountMode = "explicit";

    expectException(function() { panner.channelCountMode = "max"; },

                    DOMException.NOT_SUPPORTED_ERR);

    panner.channelInterpretation = "discrete";

    panner.channelInterpretation = "speakers";

    var source = context.createBufferSource();

    source.buffer = buffer;

    source.connect(panner);

    source.start(0);

    return panner;

},

};

runTest();

</script>

</pre>

</body>

</html>