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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 = {
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>
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