mirror of
https://github.com/AndroidAudioMods/ViPERFX_RE.git
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92 lines
3.0 KiB
C++
92 lines
3.0 KiB
C++
//
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// Created by mart on 7/28/21.
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//
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#include "DynamicBass.h"
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#include "../constants.h"
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DynamicBass::DynamicBass() {
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this->qPeak = 0;
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SetSamplingRate(DEFAULT_SAMPLERATE);
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this->bassGain = 1.f;
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this->sideGainX = 1.f;
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this->sideGainY = 1.f;
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this->lowFreqX = 120;
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this->highFreqX = 80;
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this->lowFreqY = 40;
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this->highFreqY = (float) this->samplerate / 4.f;
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this->filterX.SetPassFilter(this->lowFreqX, this->highFreqX);
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this->filterY.SetPassFilter(this->lowFreqY, this->highFreqY);
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this->lowPass.SetLowPassParameter(55.f, this->samplerate, this->qPeak / 666.f + 0.5f);
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}
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void DynamicBass::Reset() {
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this->filterX.Reset();
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this->filterY.Reset();
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this->lowPass.SetLowPassParameter(55.f, this->samplerate, this->qPeak / 666.f + 0.5f);
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}
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void DynamicBass::FilterSamples(float *samples, uint32_t size) {
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if (this->lowFreqX <= 120) {
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for (int i = 0; i < size; i++) {
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float left = samples[2 * i];
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float right = samples[2 * i + 1];
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float avg = this->lowPass.ProcessSample(left + right);
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samples[2 * i] = left + avg;
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samples[2 * i + 1] = right + avg;
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}
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} else {
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for (int i = 0; i < size; i++) {
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float x1, x2, x3, x4, x5, x6, y1, y2, y3, y4, y5, y6;
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this->filterX.DoFilterLeft(samples[2 * i], &x1, &x2, &x3);
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this->filterX.DoFilterRight(samples[2 * i + 1], &x4, &x5, &x6);
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this->filterY.DoFilterLeft(this->bassGain * x1, &y1, &y2, &y3);
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this->filterY.DoFilterRight(this->bassGain * x4, &y4, &y5, &y6);
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samples[2 * i] = x2 + y3 + this->sideGainX * y2 + this->sideGainY * y1 + x3;
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samples[2 * i + 1] = x5 + y6 + this->sideGainX * y5 + this->sideGainY * y4 + x6;
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}
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}
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}
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void DynamicBass::SetBassGain(float gain) {
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this->bassGain = gain;
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this->qPeak = (gain - 1.f) / 20.f * 1600.f;
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if (this->qPeak > 1600.f) {
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this->qPeak = 1600.f;
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}
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this->lowPass.SetLowPassParameter(55.f, this->samplerate, this->qPeak / 666.f + 0.5f);
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}
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void DynamicBass::SetSideGain(float gainX, float gainY) {
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this->sideGainX = gainX;
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this->sideGainY = gainY;
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}
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void DynamicBass::SetFilterXPassFrequency(uint32_t low, uint32_t high) {
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this->lowFreqX = low;
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this->highFreqX = high;
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this->filterX.SetPassFilter(low, high);
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this->filterX.SetSamplingRate(this->samplerate);
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this->lowPass.SetLowPassParameter(55.f, this->samplerate, this->qPeak / 666.f + 0.5f);
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}
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void DynamicBass::SetFilterYPassFrequency(uint32_t low, uint32_t high) {
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this->lowFreqY = low;
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this->highFreqY = high;
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this->filterY.SetPassFilter(low, high);
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this->filterY.SetSamplingRate(this->samplerate);
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this->lowPass.SetLowPassParameter(55.f, this->samplerate, this->qPeak / 666.f + 0.5f);
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}
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void DynamicBass::SetSamplingRate(uint32_t samplerate) {
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this->samplerate = samplerate;
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this->filterX.SetSamplingRate(samplerate);
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this->filterY.SetSamplingRate(samplerate);
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this->lowPass.SetLowPassParameter(55.f, samplerate, this->qPeak / 666.f + 0.5f);
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}
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