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clean AudioNoiseGate

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This commit is contained in:
Zach Pomerantz 2017-03-13 18:56:54 -04:00
parent 0abcda86a8
commit f43706dfe1
2 changed files with 13 additions and 36 deletions
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22
libraries/audio/src/AudioNoiseGate.cpp
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@ -19,19 +19,13 @@
const float AudioNoiseGate::CLIPPING_THRESHOLD = 0.90f; const float AudioNoiseGate::CLIPPING_THRESHOLD = 0.90f;
AudioNoiseGate::AudioNoiseGate() : AudioNoiseGate::AudioNoiseGate() :
_inputBlockCounter(0),
_lastLoudness(0.0f), _lastLoudness(0.0f),
_quietestBlock(std::numeric_limits<float>::max()),
_loudestBlock(0.0f),
_didClipInLastBlock(false), _didClipInLastBlock(false),
_dcOffset(0.0f), _dcOffset(0.0f),
_measuredFloor(0.0f), _measuredFloor(0.0f),
_sampleCounter(0), _sampleCounter(0),
_isOpen(false), _isOpen(false),
_blocksToClose(0) _blocksToClose(0) {}
{
}
void AudioNoiseGate::removeDCOffset(int16_t* samples, int numSamples) { void AudioNoiseGate::removeDCOffset(int16_t* samples, int numSamples) {
// //
@ -104,20 +98,6 @@ void AudioNoiseGate::gateSamples(int16_t* samples, int numSamples) {
_lastLoudness = fabs(loudness / numSamples); _lastLoudness = fabs(loudness / numSamples);
if (_quietestBlock > _lastLoudness) {
_quietestBlock = _lastLoudness;
}
if (_loudestBlock < _lastLoudness) {
_loudestBlock = _lastLoudness;
}
const int FRAMES_FOR_NOISE_DETECTION = 400;
if (_inputBlockCounter++ > FRAMES_FOR_NOISE_DETECTION) {
_quietestBlock = std::numeric_limits<float>::max();
_loudestBlock = 0.0f;
_inputBlockCounter = 0;
}
// If Noise Gate is enabled, check and turn the gate on and off // If Noise Gate is enabled, check and turn the gate on and off
float averageOfAllSampleBlocks = 0.0f; float averageOfAllSampleBlocks = 0.0f;
_sampleBlocks[_sampleCounter++] = _lastLoudness; _sampleBlocks[_sampleCounter++] = _lastLoudness;

3
libraries/audio/src/AudioNoiseGate.h
View file

@ -33,10 +33,7 @@ public:
static const float CLIPPING_THRESHOLD; static const float CLIPPING_THRESHOLD;
private: private:
int _inputBlockCounter;
float _lastLoudness; float _lastLoudness;
float _quietestBlock;
float _loudestBlock;
bool _didClipInLastBlock; bool _didClipInLastBlock;
float _dcOffset; float _dcOffset;
float _measuredFloor; float _measuredFloor;