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Make ViPERBass stereo :)

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This commit is contained in:
Iscle 2023-09-03 03:22:29 +02:00
parent 86b50169a0
commit a947fd7f79
2 changed files with 36 additions and 46 deletions
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74
src/viper/effects/ViPERBass.cpp
View File

@ -3,7 +3,7 @@
// Iscle: Verified with the latest version at 13/12/2022
ViPERBass::ViPERBass() {
ViPERBass::ViPERBass() : polyphase(2), waveBuffer(2, 4096) {
this->speaker = 60;
this->enable = false;
this->processMode = ProcessMode::NATURAL_BASS;
@ -11,24 +11,15 @@ ViPERBass::ViPERBass() {
this->bassFactor = 0.0;
this->samplingRate = VIPER_DEFAULT_SAMPLING_RATE;
this->samplingRatePeriod = 1.0 / VIPER_DEFAULT_SAMPLING_RATE;
this->polyphase = new Polyphase(2);
this->biquad = new Biquad();
this->subwoofer = new Subwoofer();
this->waveBuffer = new WaveBuffer(1, 4096);
this->biquad->Reset();
this->biquad->SetLowPassParameter((float) this->speaker, this->samplingRate, 0.53);
this->subwoofer->SetBassGain(this->samplingRate, 0.0);
for (auto &biquad : this->biquad) {
biquad.Reset();
biquad.SetLowPassParameter((float) this->speaker, this->samplingRate, 0.53);
}
this->subwoofer.SetBassGain(this->samplingRate, 0.0);
Reset();
}
ViPERBass::~ViPERBass() {
delete this->polyphase;
delete this->biquad;
delete this->subwoofer;
delete this->waveBuffer;
}
void ViPERBass::Process(float *samples, uint32_t size) {
if (!this->enable) return;
if (size == 0) return;
@ -48,49 +39,46 @@ void ViPERBass::Process(float *samples, uint32_t size) {
switch (this->processMode) {
case ProcessMode::NATURAL_BASS: {
for (uint32_t i = 0; i < size * 2; i += 2) {
double sample = ((double) samples[i] + (double) samples[i + 1]) / 2.0;
float x = (float) this->biquad->ProcessSample(sample) * this->bassFactor;
samples[i] += x;
samples[i + 1] += x;
samples[i] += (float) this->biquad[0].ProcessSample(samples[i]) * this->bassFactor;
samples[i + 1] += (float) this->biquad[1].ProcessSample(samples[i + 1]) * this->bassFactor;
}
break;
}
case ProcessMode::PURE_BASS_PLUS: {
if (this->waveBuffer->PushSamples(samples, size)) {
float *buffer = this->waveBuffer->GetBuffer();
uint32_t bufferOffset = this->waveBuffer->GetBufferOffset();
if (this->waveBuffer.PushSamples(samples, size)) {
float *buffer = this->waveBuffer.GetBuffer();
uint32_t bufferOffset = this->waveBuffer.GetBufferOffset();
for (uint32_t i = 0; i < size * 2; i += 2) {
double sample = ((double) samples[i] + (double) samples[i + 1]) / 2.0;
auto x = (float) this->biquad->ProcessSample(sample);
buffer[bufferOffset - size + i / 2] = x;
buffer[bufferOffset - size + i] = (float) this->biquad[0].ProcessSample(samples[i]);
buffer[bufferOffset - size + i + 1] = (float) this->biquad[1].ProcessSample(samples[i + 1]);
}
if (this->polyphase->Process(samples, size) == size) {
if (this->polyphase.Process(samples, size) == size) {
for (uint32_t i = 0; i < size * 2; i += 2) {
float x = buffer[i / 2] * this->bassFactor;
samples[i] += x;
samples[i + 1] += x;
samples[i] += buffer[i] * this->bassFactor;
samples[i + 1] += buffer[i + 1] * this->bassFactor;
}
this->waveBuffer->PopSamples(size, true);
this->waveBuffer.PopSamples(size, true);
}
}
break;
}
case ProcessMode::SUBWOOFER: {
this->subwoofer->Process(samples, size);
this->subwoofer.Process(samples, size);
break;
}
}
}
void ViPERBass::Reset() {
this->polyphase->SetSamplingRate(this->samplingRate);
this->polyphase->Reset();
this->waveBuffer->Reset();
this->waveBuffer->PushZeros(this->polyphase->GetLatency());
this->subwoofer->SetBassGain(this->samplingRate, this->bassFactor * 2.5f);
this->biquad->SetLowPassParameter((float) this->speaker, this->samplingRate, 0.53);
this->polyphase.SetSamplingRate(this->samplingRate);
this->polyphase.Reset();
this->waveBuffer.Reset();
this->waveBuffer.PushZeros(this->polyphase.GetLatency());
this->subwoofer.SetBassGain(this->samplingRate, this->bassFactor * 2.5f);
this->biquad[0].SetLowPassParameter((float) this->speaker, this->samplingRate, 0.53);
this->biquad[1].SetLowPassParameter((float) this->speaker, this->samplingRate, 0.53);
this->samplingRatePeriod = 1.0f / (float) this->samplingRate;
this->antiPop = 0.0f;
}
@ -98,7 +86,7 @@ void ViPERBass::Reset() {
void ViPERBass::SetBassFactor(float bassFactor) {
if (this->bassFactor != bassFactor) {
this->bassFactor = bassFactor;
this->subwoofer->SetBassGain(this->samplingRate, this->bassFactor * 2.5f);
this->subwoofer.SetBassGain(this->samplingRate, this->bassFactor * 2.5f);
}
}
@ -120,15 +108,17 @@ void ViPERBass::SetSamplingRate(uint32_t samplingRate) {
if (this->samplingRate != samplingRate) {
this->samplingRate = samplingRate;
this->samplingRatePeriod = 1.0f / (float) samplingRate;
this->polyphase->SetSamplingRate(this->samplingRate);
this->biquad->SetLowPassParameter((float) this->speaker, this->samplingRate, 0.53);
this->subwoofer->SetBassGain(this->samplingRate, this->bassFactor * 2.5f);
this->polyphase.SetSamplingRate(this->samplingRate);
this->biquad[0].SetLowPassParameter((float) this->speaker, this->samplingRate, 0.53);
this->biquad[1].SetLowPassParameter((float) this->speaker, this->samplingRate, 0.53);
this->subwoofer.SetBassGain(this->samplingRate, this->bassFactor * 2.5f);
}
}
void ViPERBass::SetSpeaker(uint32_t speaker) {
if (this->speaker != speaker) {
this->speaker = speaker;
this->biquad->SetLowPassParameter((float) this->speaker, this->samplingRate, 0.53);
this->biquad[0].SetLowPassParameter((float) this->speaker, this->samplingRate, 0.53);
this->biquad[1].SetLowPassParameter((float) this->speaker, this->samplingRate, 0.53);
}
}

8
src/viper/effects/ViPERBass.h
View File

@ -28,10 +28,10 @@ public:
void SetSpeaker(uint32_t speaker);
private:
Polyphase *polyphase;
Biquad *biquad;
Subwoofer *subwoofer;
WaveBuffer *waveBuffer;
Polyphase polyphase;
Biquad biquad[2];
Subwoofer subwoofer;
WaveBuffer waveBuffer;
bool enable;
ProcessMode processMode;
uint32_t samplingRate;