test_disconnectAudioParam.html (1440B)
1 <!DOCTYPE HTML> 2 <html> 3 <head> 4 <title>Test whether we can disconnect an AudioParam</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 var gTest = { 13 length: 256, 14 numberOfChannels: 1, 15 createGraph(context) { 16 var sourceBuffer = context.createBuffer(1, 256, context.sampleRate); 17 var data = sourceBuffer.getChannelData(0); 18 for (var j = 0; j < data.length; j++) { 19 data[j] = 1; 20 } 21 22 var source = context.createBufferSource(); 23 source.buffer = sourceBuffer; 24 25 var half = context.createGain(); 26 var gain1 = context.createGain(); 27 var gain2 = context.createGain(); 28 29 half.gain.value = 0.5; 30 31 source.connect(gain1); 32 gain1.connect(gain2); 33 source.connect(half); 34 35 half.connect(gain1.gain); 36 half.connect(gain2.gain); 37 38 half.disconnect(gain2.gain); 39 40 source.start(); 41 42 return gain2; 43 }, 44 createExpectedBuffers(context) { 45 let expectedBuffer = context.createBuffer(1, 256, context.sampleRate); 46 for (var i = 0; i < 256; ++i) { 47 expectedBuffer.getChannelData(0)[i] = 1.5; 48 } 49 50 return expectedBuffer; 51 } 52 }; 53 54 runTest(); 55 </script> 56 </pre> 57 </body> 58 </html>