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fix trailing average on ring buffer, remove unused constant

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This commit is contained in:
Stephen Birarda 2014-03-21 18:28:12 -07:00
parent 88348b12d2
commit abd6c8a747
2 changed files with 5 additions and 1 deletions
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1
assignment-client/src/audio/AudioMixer.cpp
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@ -386,7 +386,6 @@ void AudioMixer::run() {
const float STRUGGLE_TRIGGER_SLEEP_PERCENTAGE_THRESHOLD = 0.10f;
const float BACK_OFF_TRIGGER_SLEEP_PERCENTAGE_THRESHOLD = 0.20f;
const float CUTOFF_EPSILON = 0.0001f;
const float CUTOFF_DELTA = 0.02f;
const float CURRENT_FRAME_RATIO = 1.0f / TRAILING_AVERAGE_FRAMES;

5
libraries/audio/src/AudioRingBuffer.cpp
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@ -70,11 +70,16 @@ void AudioRingBuffer::updateAverageLoudnessForBoundarySamples(int numSamples) {
const int TRAILING_AVERAGE_FRAMES = 100;
const float CURRENT_FRAME_RATIO = 1 / TRAILING_AVERAGE_FRAMES;
const float PREVIOUS_FRAMES_RATIO = 1 - CURRENT_FRAME_RATIO;
const float LOUDNESS_EPSILON = 0.001;
if (nextLoudness >= _averageLoudness) {
_averageLoudness = nextLoudness;
} else {
_averageLoudness = (_averageLoudness * PREVIOUS_FRAMES_RATIO) + (CURRENT_FRAME_RATIO * nextLoudness);
if (_averageLoudness < LOUDNESS_EPSILON) {
_averageLoudness = 0;
}
}
}