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Fixed recursive echo issue in reverb

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Kearwood Gilbert
2013-02-15 23:40:22 -08:00
parent fac1df2f6a
commit eee1dc28e0
1 changed files with 4 additions and 6 deletions
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10
KREngine/kraken/KRAudioManager.cpp
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@@ -152,7 +152,7 @@ void KRAudioManager::renderReverbImpulseResponse(KRAudioSample *impulse_response
DSPSplitComplex impulse_block_data_complex = m_reverb_workspace[1]; DSPSplitComplex impulse_block_data_complex = m_reverb_workspace[1];
DSPSplitComplex conv_data_complex = m_reverb_workspace[2]; DSPSplitComplex conv_data_complex = m_reverb_workspace[2];
int reverb_offset = (m_reverb_input_next_sample + KRENGINE_AUDIO_BLOCK_LENGTH - impulse_response_offset); int reverb_offset = (m_reverb_input_next_sample - impulse_response_offset);
if(reverb_offset < 0) { if(reverb_offset < 0) {
reverb_offset += KRENGINE_REVERB_MAX_SAMPLES; reverb_offset += KRENGINE_REVERB_MAX_SAMPLES;
} else { } else {
@@ -224,11 +224,6 @@ void KRAudioManager::renderReverb()
} }
} }
m_reverb_input_next_sample += KRENGINE_AUDIO_BLOCK_LENGTH;
if(m_reverb_input_next_sample >= KRENGINE_REVERB_MAX_SAMPLES) {
m_reverb_input_next_sample = 0;
}
// Apply impulse response reverb // Apply impulse response reverb
// KRAudioSample *impulse_response = getContext().getAudioManager()->get("hrtf_kemar_H10e040a"); // KRAudioSample *impulse_response = getContext().getAudioManager()->get("hrtf_kemar_H10e040a");
KRAudioSample *impulse_response_sample = getContext().getAudioManager()->get("test_reverb"); KRAudioSample *impulse_response_sample = getContext().getAudioManager()->get("test_reverb");
@@ -238,6 +233,9 @@ void KRAudioManager::renderReverb()
renderReverbImpulseResponse(impulse_response_sample, impulse_response_block * KRENGINE_AUDIO_BLOCK_LENGTH, KRENGINE_AUDIO_BLOCK_LOG2N); renderReverbImpulseResponse(impulse_response_sample, impulse_response_block * KRENGINE_AUDIO_BLOCK_LENGTH, KRENGINE_AUDIO_BLOCK_LOG2N);
} }
} }
// Rotate reverb buffer
m_reverb_input_next_sample = (m_reverb_input_next_sample + KRENGINE_AUDIO_BLOCK_LENGTH) % KRENGINE_REVERB_MAX_SAMPLES;
} }
void KRAudioManager::renderBlock() void KRAudioManager::renderBlock()