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enable in Interface and AudioMixer, by passing distance between source and listener

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This commit is contained in:
Ken Cooke 2016-07-14 11:30:55 -07:00
parent c7c02d7a59
commit 7a4bdc1779
2 changed files with 13 additions and 9 deletions
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14
assignment-client/src/audio/AudioMixer.cpp
View file

@ -193,8 +193,12 @@ void AudioMixer::addStreamToMixForListeningNodeWithStream(AudioMixerClientData&
// check if this is a server echo of a source back to itself
bool isEcho = (&streamToAdd == &listeningNodeStream);
// figure out the gain for this source at the listener
glm::vec3 relativePosition = streamToAdd.getPosition() - listeningNodeStream.getPosition();
// figure out the distance between source and listener
float distance = glm::max(glm::length(relativePosition), EPSILON);
// figure out the gain for this source at the listener
float gain = gainForSource(streamToAdd, listeningNodeStream, relativePosition, isEcho);
// figure out the azimuth to this source at the listener
@ -240,7 +244,7 @@ void AudioMixer::addStreamToMixForListeningNodeWithStream(AudioMixerClientData&
// this is not done for stereo streams since they do not go through the HRTF
static int16_t silentMonoBlock[AudioConstants::NETWORK_FRAME_SAMPLES_PER_CHANNEL] = {};
hrtf.renderSilent(silentMonoBlock, _mixedSamples, HRTF_DATASET_INDEX, azimuth, 0.0f, gain,
hrtf.renderSilent(silentMonoBlock, _mixedSamples, HRTF_DATASET_INDEX, azimuth, distance, gain,
AudioConstants::NETWORK_FRAME_SAMPLES_PER_CHANNEL);
++_hrtfSilentRenders;;
@ -287,7 +291,7 @@ void AudioMixer::addStreamToMixForListeningNodeWithStream(AudioMixerClientData&
// silent frame from source
// we still need to call renderSilent via the HRTF for mono source
hrtf.renderSilent(streamBlock, _mixedSamples, HRTF_DATASET_INDEX, azimuth, 0.0f, gain,
hrtf.renderSilent(streamBlock, _mixedSamples, HRTF_DATASET_INDEX, azimuth, distance, gain,
AudioConstants::NETWORK_FRAME_SAMPLES_PER_CHANNEL);
++_hrtfSilentRenders;
@ -300,7 +304,7 @@ void AudioMixer::addStreamToMixForListeningNodeWithStream(AudioMixerClientData&
// the mixer is struggling so we're going to drop off some streams
// we call renderSilent via the HRTF with the actual frame data and a gain of 0.0
hrtf.renderSilent(streamBlock, _mixedSamples, HRTF_DATASET_INDEX, azimuth, 0.0f, 0.0f,
hrtf.renderSilent(streamBlock, _mixedSamples, HRTF_DATASET_INDEX, azimuth, distance, 0.0f,
AudioConstants::NETWORK_FRAME_SAMPLES_PER_CHANNEL);
++_hrtfStruggleRenders;
@ -311,7 +315,7 @@ void AudioMixer::addStreamToMixForListeningNodeWithStream(AudioMixerClientData&
++_hrtfRenders;
// mono stream, call the HRTF with our block and calculated azimuth and gain
hrtf.render(streamBlock, _mixedSamples, HRTF_DATASET_INDEX, azimuth, 0.0f, gain,
hrtf.render(streamBlock, _mixedSamples, HRTF_DATASET_INDEX, azimuth, distance, gain,
AudioConstants::NETWORK_FRAME_SAMPLES_PER_CHANNEL);
}

8
libraries/audio-client/src/AudioClient.cpp
View file

@ -882,13 +882,13 @@ void AudioClient::mixLocalAudioInjectors(int16_t* inputBuffer) {
} else {
// calculate gain and azimuth for hrtf
// calculate distance, gain and azimuth for hrtf
glm::vec3 relativePosition = injector->getPosition() - _positionGetter();
float distance = glm::max(glm::length(relativePosition), EPSILON);
float gain = gainForSource(relativePosition, injector->getVolume());
float azimuth = azimuthForSource(relativePosition);
float azimuth = azimuthForSource(relativePosition);
injector->getLocalHRTF().render(_scratchBuffer, _hrtfBuffer, 1, azimuth, 0.0f, gain, AudioConstants::NETWORK_FRAME_SAMPLES_PER_CHANNEL);
injector->getLocalHRTF().render(_scratchBuffer, _hrtfBuffer, 1, azimuth, distance, gain, AudioConstants::NETWORK_FRAME_SAMPLES_PER_CHANNEL);
}
} else {