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for agent loopback perform no distance and angle calculations

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Stephen Birarda 2013-05-07 14:28:48 -07:00
parent 00c11d82b2
commit 82cff262b1
2 changed files with 68 additions and 64 deletions
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9
audio-mixer/src/main.cpp
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@ -120,6 +120,11 @@ void *sendBuffer(void *args) {
AudioRingBuffer* otherAgentBuffer = (AudioRingBuffer*) otherAgent->getLinkedData();
if (otherAgentBuffer->shouldBeAddedToMix()) {
float bearingRelativeAngleToSource = 0.f;
float attenuationCoefficient = 1.f;
if (otherAgent != agent) {
float *agentPosition = agentRingBuffer->getPosition();
float *otherAgentPosition = otherAgentBuffer->getPosition();
@ -146,7 +151,6 @@ void *sendBuffer(void *args) {
float absoluteAngleToSource = 0;
float bearingRelativeAngleToSource = 0;
// find the angle we need for calculation based on the orientation of the triangle
if (otherAgentPosition[0] > agentPosition[0]) {
if (otherAgentPosition[2] > agentPosition[2]) {
@ -180,13 +184,14 @@ void *sendBuffer(void *args) {
float offAxisCoefficient = MAX_OFF_AXIS_ATTENUATION +
(OFF_AXIS_ATTENUATION_FORMULA_STEP * (fabsf(angleOfDelivery) / 90.0f));
float attenuationCoefficient = distanceCoefficients[lowAgentIndex][highAgentIndex]
attenuationCoefficient = distanceCoefficients[lowAgentIndex][highAgentIndex]
* otherAgentBuffer->getAttenuationRatio()
* offAxisCoefficient;
float sinRatio = fabsf(sinf(bearingRelativeAngleToSource));
int numSamplesDelay = PHASE_DELAY_AT_90 * sinRatio;
float weakChannelAmplitudeRatio = 1 - (PHASE_AMPLITUDE_RATIO_AT_90 * sinRatio);
}
int16_t* goodChannel = bearingRelativeAngleToSource > 0 ? clientMix + BUFFER_LENGTH_SAMPLES_PER_CHANNEL : clientMix;
int16_t* delayedChannel = bearingRelativeAngleToSource > 0 ? clientMix : clientMix + BUFFER_LENGTH_SAMPLES_PER_CHANNEL;

3
libraries/shared/src/AudioRingBuffer.cpp
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@ -113,6 +113,7 @@ int AudioRingBuffer::parseData(unsigned char* sourceBuffer, int numBytes) {
attenuationRatio = attenuationByte / 255.0f;
memcpy(&bearing, dataPtr, sizeof(float));
dataPtr += sizeof(bearing);
if (bearing > 180 || bearing < -180) {
// we were passed an invalid bearing because this agent wants loopback (pressed the H key)
@ -126,8 +127,6 @@ int AudioRingBuffer::parseData(unsigned char* sourceBuffer, int numBytes) {
_shouldLoopbackForAgent = false;
}
dataPtr += sizeof(float);
sourceBuffer = dataPtr;
}