| OLD | NEW |
|---|
| 1 <!DOCTYPE HTML> | 1 <!DOCTYPE HTML> |
| 2 <html> | 2 <html> |
| 3 <head> | 3 <head> |
| 4 <script src="../resources/js-test.js"></script> | 4 <script src="../resources/js-test.js"></script> |
| 5 <script src="resources/compatibility.js"></script> | 5 <script src="resources/compatibility.js"></script> |
| 6 <script type="text/javascript" src="resources/audio-testing.js"></script> | 6 <script type="text/javascript" src="resources/audio-testing.js"></script> |
| 7 </head> | 7 </head> |
| 8 | 8 |
| 9 <body> | 9 <body> |
| 10 <div id="description"></div> | 10 <div id="description"></div> |
| 11 <div id="console"></div> | 11 <div id="console"></div> |
| 12 | 12 |
| 13 <script> | 13 <script> |
| 14 description("Test pre-emphasis in DynamicsCompressor is removed"); | 14 description("Test pre-emphasis in DynamicsCompressor is removed"); |
| 15 var context; | 15 var context; |
| 16 var sampleRate = 44100; | 16 var sampleRate = 44100; |
| 17 var lengthInSeconds = 1; | 17 var lengthInSeconds = 1; |
| 18 var renderedData; | 18 var renderedData; |
| 19 // This threshold experimentally determined. It depends on the the gain va
lue of the gain node | 19 // This threshold experimentally determined. It depends on the the gain va
lue of the gain node |
| 20 // below and the dynamics compressor. When the DynamicsCompressor had the
pre-emphasis | 20 // below and the dynamics compressor. When the DynamicsCompressor had the
pre-emphasis |
| 21 // filters, the peak value is about 0.21. Without it, the peak is 0.85. | 21 // filters, the peak value is about 0.21. Without it, the peak is about 0
.84. |
| 22 var peakThreshold = 0.85; | 22 var peakThreshold = 0.83; |
| 23 | 23 |
| 24 function checkResult(event) { | 24 function checkResult(event) { |
| 25 var renderedBuffer = event.renderedBuffer; | 25 var renderedBuffer = event.renderedBuffer; |
| 26 renderedData = renderedBuffer.getChannelData(0); | 26 renderedData = renderedBuffer.getChannelData(0); |
| 27 // Search for a peak in the last part of the data. | 27 // Search for a peak in the last part of the data. |
| 28 var startSample = sampleRate * (lengthInSeconds - .1); | 28 var startSample = sampleRate * (lengthInSeconds - .1); |
| 29 var endSample = renderedData.length; | 29 var endSample = renderedData.length; |
| 30 var k; | 30 var k; |
| 31 var peak = -1; | 31 var peak = -1; |
| 32 | 32 |
| (...skipping 40 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 73 context.startRendering(); | 73 context.startRendering(); |
| 74 } | 74 } |
| 75 | 75 |
| 76 runTest(); | 76 runTest(); |
| 77 successfullyParsed = true; | 77 successfullyParsed = true; |
| 78 | 78 |
| 79 </script> | 79 </script> |
| 80 | 80 |
| 81 </body> | 81 </body> |
| 82 </html> | 82 </html> |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 314743002:
Reduce dynamicscompressor threshold. (Closed)
Base URL: svn://svn.chromium.org/blink/trunk