<!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 = {
  numberOfChannels: 2,
  createGraph(context) {
    // An up vector will be made perpendicular to the front vector, in the
    // front-up plane.
    context.listener.setOrientation(0, 6.311749985202524e+307, 0, 0.1, 1000, 0);
    // Linearly dependent vectors are ignored.
    context.listener.setOrientation(0, 0, -6.311749985202524e+307, 0, 0, 6.311749985202524e+307);
    var panner = context.createPanner();
    panner.positionX.value = 2; // directly above
    panner.rolloffFactor = 0; // no distance gain
    panner.panningModel = "equalpower"; // no effect when directly above

    var source = context.createBufferSource();
    source.buffer = this.buffer;
    source.connect(panner);
    source.start(0);

    return panner;
  },
  createExpectedBuffers(context) {
    var expectedBuffer = context.createBuffer(2, 2048, context.sampleRate);
    for (var i = 0; i < 2048; ++i) {
      // Different signals in left and right buffers
      expectedBuffer.getChannelData(0)[i] = Math.sin(440 * 2 * Math.PI * i / context.sampleRate);
      expectedBuffer.getChannelData(1)[i] = Math.sin(220 * 2 * Math.PI * i / context.sampleRate);
    }
    this.buffer = expectedBuffer;
    return expectedBuffer;
  },
};

runTest();

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