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| 1 /* | 1 /* |
| 2 * Copyright (C) 2010 Google Inc. All rights reserved. | 2 * Copyright (C) 2010 Google Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * | 7 * |
| 8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
| (...skipping 25 matching lines...) Expand all Loading... |
| 36 #include "platform/audio/AudioBus.h" | 36 #include "platform/audio/AudioBus.h" |
| 37 #include "platform/audio/VectorMath.h" | 37 #include "platform/audio/VectorMath.h" |
| 38 #include "wtf/MathExtras.h" | 38 #include "wtf/MathExtras.h" |
| 39 #include "wtf/OwnPtr.h" | 39 #include "wtf/OwnPtr.h" |
| 40 #include "wtf/PassOwnPtr.h" | 40 #include "wtf/PassOwnPtr.h" |
| 41 | 41 |
| 42 #if OS(MACOSX) | 42 #if OS(MACOSX) |
| 43 using namespace std; | 43 using namespace std; |
| 44 #endif | 44 #endif |
| 45 | 45 |
| 46 namespace WebCore { | 46 namespace blink { |
| 47 | 47 |
| 48 using namespace VectorMath; | 48 using namespace VectorMath; |
| 49 | 49 |
| 50 // Empirical gain calibration tested across many impulse responses to ensure per
ceived volume is same as dry (unprocessed) signal | 50 // Empirical gain calibration tested across many impulse responses to ensure per
ceived volume is same as dry (unprocessed) signal |
| 51 const float GainCalibration = -58; | 51 const float GainCalibration = -58; |
| 52 const float GainCalibrationSampleRate = 44100; | 52 const float GainCalibrationSampleRate = 44100; |
| 53 | 53 |
| 54 // A minimum power value to when normalizing a silent (or very quiet) impulse re
sponse | 54 // A minimum power value to when normalizing a silent (or very quiet) impulse re
sponse |
| 55 const float MinPower = 0.000125f; | 55 const float MinPower = 0.000125f; |
| 56 | 56 |
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| 229 { | 229 { |
| 230 for (size_t i = 0; i < m_convolvers.size(); ++i) | 230 for (size_t i = 0; i < m_convolvers.size(); ++i) |
| 231 m_convolvers[i]->reset(); | 231 m_convolvers[i]->reset(); |
| 232 } | 232 } |
| 233 | 233 |
| 234 size_t Reverb::latencyFrames() const | 234 size_t Reverb::latencyFrames() const |
| 235 { | 235 { |
| 236 return !m_convolvers.isEmpty() ? m_convolvers.first()->latencyFrames() : 0; | 236 return !m_convolvers.isEmpty() ? m_convolvers.first()->latencyFrames() : 0; |
| 237 } | 237 } |
| 238 | 238 |
| 239 } // namespace WebCore | 239 } // namespace blink |
| 240 | 240 |
| 241 #endif // ENABLE(WEB_AUDIO) | 241 #endif // ENABLE(WEB_AUDIO) |
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