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Fix SpectrumExtend

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This commit is contained in:
Iscle 2023-03-10 23:47:48 +01:00
parent 6550d6e58b
commit 3edf47a26d
2 changed files with 37 additions and 24 deletions
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60
src/viper/effects/SpectrumExtend.cpp
View File

@ -3,22 +3,22 @@
static const float SPECTRUM_HARMONICS[10] = {
0.02f,
0.f,
0.0f,
0.02f,
0.f,
0.0f,
0.02f,
0.f,
0.0f,
0.02f,
0.f,
0.0f,
0.02f,
0.f,
0.0f,
};
SpectrumExtend::SpectrumExtend() {
this->samplingRate = VIPER_DEFAULT_SAMPLING_RATE;
this->referenceFreq = 7600;
this->enabled = false;
this->exciter = 0.f;
this->exciter = 0.0;
Reset();
}
@ -27,15 +27,20 @@ SpectrumExtend::~SpectrumExtend() {
}
void SpectrumExtend::Process(float *samples, uint32_t size) {
if (this->enabled) {
for (uint32_t i = 0; i < size * 2; i++) {
float sample = samples[i];
int index = i % 2;
float tmp = this->highpass[index].ProcessSample(sample);
tmp = this->harmonics[index].Process(tmp);
tmp = this->lowpass[index].ProcessSample(tmp * this->exciter);
samples[i] = samples[i] + tmp;
}
if (!this->enabled) return;
for (uint32_t i = 0; i < size * 2; i += 2) {
double tmp;
tmp = this->highpass[0].ProcessSample(samples[i]);
tmp = this->harmonics[0].Process(tmp);
tmp = this->lowpass[0].ProcessSample(tmp * this->exciter);
samples[i] = samples[i] + (float) tmp;
tmp = this->highpass[1].ProcessSample(samples[i + 1]);
tmp = this->harmonics[1].Process(tmp);
tmp = this->lowpass[1].ProcessSample(tmp * this->exciter);
samples[i + 1] = samples[i + 1] + (float) tmp;
}
}
@ -45,10 +50,10 @@ void SpectrumExtend::Reset() {
this->highpass[1].RefreshFilter(MultiBiquad::FilterType::HIGH_PASS, 0.0, (float) this->referenceFreq, this->samplingRate,
0.717, false);
this->lowpass[0].RefreshFilter(MultiBiquad::FilterType::LOW_PASS, 0.0, (float) this->referenceFreq / 2.f - 2000.f,
this->referenceFreq, 0.717, false);
this->lowpass[1].RefreshFilter(MultiBiquad::FilterType::LOW_PASS, 0.0, (float) this->referenceFreq / 2.f - 2000.f,
this->referenceFreq, 0.717, false);
this->lowpass[0].RefreshFilter(MultiBiquad::FilterType::LOW_PASS, 0.0, (float) this->samplingRate / 2.0f - 2000.0f,
this->samplingRate, 0.717, false);
this->lowpass[1].RefreshFilter(MultiBiquad::FilterType::LOW_PASS, 0.0, (float) this->samplingRate / 2.0f - 2000.0f,
this->samplingRate, 0.717, false);
this->harmonics[0].Reset();
this->harmonics[1].Reset();
@ -58,7 +63,12 @@ void SpectrumExtend::Reset() {
}
void SpectrumExtend::SetEnable(bool enable) {
this->enabled = enable;
if (this->enabled != enable) {
if (enable) {
Reset();
}
this->enabled = enable;
}
}
void SpectrumExtend::SetExciter(float value) {
@ -74,9 +84,11 @@ void SpectrumExtend::SetReferenceFrequency(uint32_t freq) {
}
void SpectrumExtend::SetSamplingRate(uint32_t samplingRate) {
this->samplingRate = samplingRate;
if (this->samplingRate / 2 - 100 < this->referenceFreq) {
this->referenceFreq = this->samplingRate / 2 - 100;
if (this->samplingRate != samplingRate) {
this->samplingRate = samplingRate;
if (samplingRate / 2 - 100 < this->referenceFreq) {
this->referenceFreq = samplingRate / 2 - 100;
}
Reset();
}
Reset();
}

1
src/viper/effects/SpectrumExtend.h
View File

@ -16,6 +16,7 @@ public:
void SetReferenceFrequency(uint32_t freq);
void SetSamplingRate(uint32_t samplingRate);
private:
MultiBiquad highpass[2];
MultiBiquad lowpass[2];
Harmonic harmonics[2];