<!DOCTYPE HTML> <html> <head> <title>Test DelayNode</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 = { length: 4096, numberOfChannels: 1, createGraph: function(context) { var source = context.createBufferSource(); var delay = context.createDelay(); source.buffer = this.buffer; source.connect(delay); delay.delayTime.value = 0.5; // Delay the source stream by 2048 frames delay.delayTime.value = 2048 / context.sampleRate; var delayWrapped = SpecialPowers.wrap(delay); ok("passThrough" in delayWrapped, "DelayNode should support the passThrough API"); delayWrapped.passThrough = true; source.start(0); return delay; }, createExpectedBuffers: function(context) { this.buffer = context.createBuffer(1, 2048, context.sampleRate); for (var i = 0; i < 2048; ++i) { this.buffer.getChannelData(0)[i] = Math.sin(440 * 2 * Math.PI * i / context.sampleRate); } var silence = context.createBuffer(1, 2048, context.sampleRate); return [this.buffer, silence]; }, }; runTest(); </script> </pre> </body> </html>