test_audioBufferSourceNodeLoopStartEndSame.html (1158B)
1 <!DOCTYPE HTML> 2 <html> 3 <head> 4 <title>Test AudioBufferSourceNode looping</title> 5 <script src="/tests/SimpleTest/SimpleTest.js"></script> 6 <script type="text/javascript" src="webaudio.js"></script> 7 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> 8 </head> 9 <body> 10 <pre id="test"> 11 <script class="testbody" type="text/javascript"> 12 13 var gTest = { 14 length: 2048, 15 numberOfChannels: 1, 16 createGraph(context) { 17 var buffer = context.createBuffer(1, 2048, context.sampleRate); 18 for (var i = 0; i < 2048; ++i) { 19 buffer.getChannelData(0)[i] = Math.sin(440 * 2 * Math.PI * i / context.sampleRate); 20 } 21 22 var source = context.createBufferSource(); 23 source.buffer = buffer; 24 25 source.loop = true; 26 source.loopStart = source.loopEnd = 1 / context.sampleRate; 27 source.start(0); 28 return source; 29 }, 30 createExpectedBuffers(context) { 31 var buffer = context.createBuffer(1, 2048, context.sampleRate); 32 for (var i = 0; i < 2048; ++i) { 33 buffer.getChannelData(0)[i] = Math.sin(440 * 2 * Math.PI * i / context.sampleRate); 34 } 35 return buffer; 36 }, 37 }; 38 39 runTest(); 40 41 </script> 42 </pre> 43 </body> 44 </html>