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+<!DOCTYPE HTML>
+<html>
+<head>
+ <title>Test PannerNode directly above</title>
+ <script type="text/javascript" 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: function(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: function(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>