Mirrors/overte
3
0
Fork 0
mirror of https://github.com/overte-org/overte.git synced 2025-04-14 07:47:30 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

fast compute of HRTF gain

Browse source
This commit is contained in:
Ken Cooke 2017-06-27 14:01:28 -07:00
parent ad970c9f5c
commit a00cd42566
1 changed files with 5 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
assignment-client/src/audio/AudioMixerSlave.cpp
View file

@ -497,13 +497,14 @@ float computeGain(const AvatarAudioStream& listeningNodeStream, const Positional
// avatar: apply fixed off-axis attenuation to make them quieter as they turn away // avatar: apply fixed off-axis attenuation to make them quieter as they turn away
} else if (!isEcho && (streamToAdd.getType() == PositionalAudioStream::Microphone)) { } else if (!isEcho && (streamToAdd.getType() == PositionalAudioStream::Microphone)) {
glm::vec3 rotatedListenerPosition = glm::inverse(streamToAdd.getOrientation()) * relativePosition; glm::vec3 rotatedListenerPosition = glm::inverse(streamToAdd.getOrientation()) * relativePosition;
float angleOfDelivery = glm::angle(glm::vec3(0.0f, 0.0f, -1.0f),
glm::normalize(rotatedListenerPosition)); // float angleOfDelivery = glm::angle(glm::vec3(0.0f, 0.0f, -1.0f), glm::normalize(rotatedListenerPosition));
glm::vec3 direction = glm::normalize(rotatedListenerPosition);
float angleOfDelivery = fastAcosf(glm::clamp(-direction.z, -1.0f, 1.0f));
const float MAX_OFF_AXIS_ATTENUATION = 0.2f; const float MAX_OFF_AXIS_ATTENUATION = 0.2f;
const float OFF_AXIS_ATTENUATION_STEP = (1 - MAX_OFF_AXIS_ATTENUATION) / 2.0f; const float OFF_AXIS_ATTENUATION_STEP = (1 - MAX_OFF_AXIS_ATTENUATION) / 2.0f;
float offAxisCoefficient = MAX_OFF_AXIS_ATTENUATION + float offAxisCoefficient = MAX_OFF_AXIS_ATTENUATION + (angleOfDelivery * (OFF_AXIS_ATTENUATION_STEP / PI_OVER_TWO));
(angleOfDelivery * (OFF_AXIS_ATTENUATION_STEP / PI_OVER_TWO));
gain *= offAxisCoefficient; gain *= offAxisCoefficient;
} }