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EQP1A.cpp
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EQP1A.cpp
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/*
==============================================================================
EQP1A.cpp
Created: 24 May 2023 5:56:36pm
Author: alber
==============================================================================
*/
#include "EQP1A.h"
#include <JuceHeader.h>
namespace wdft = chowdsp::wdft;
EQP1A::EQP1A() = default;
void EQP1A::setParams(float new_LoBoost, float new_LoCut, float new_HiBoost, float new_HiCut, float new_HiBQ, int new_LoFreq, int new_HiBoostFreq, int new_HiCutFreq){
this->set_LoBoost(new_LoBoost);
this->set_LoCut(new_LoCut);
this->set_HiBoost(new_HiBoost);
this->set_HiCut(new_HiCut);
this->set_HiBQ(new_HiBQ);
this->set_LoFreq(new_LoFreq);
this->set_HiCutFreq(new_HiCutFreq);
this->set_HiBoostFreq(new_HiBoostFreq);
}
void EQP1A::set_LoBoost(float new_LoBoost) {
if (loBoost != new_LoBoost){
RBoostLo.setResistanceValue(new_LoBoost * RBOOSTLO_MAX);
loBoost = new_LoBoost;
}
}
void EQP1A::set_LoCut(float new_LoCut) {
if (loCut != new_LoCut) {
RCutLo.setResistanceValue(new_LoCut * RCUTLO_MAX);
loCut = new_LoCut;
}
}
void EQP1A::set_HiBoost(float new_HiBoost) {
if (hiBoost != new_HiBoost) {
RBoostHi1.setResistanceValue((1 - new_HiBoost) * RBOOSTHI_MAX);
RBoostHi2.setResistanceValue(new_HiBoost * RBOOSTHI_MAX);
hiBoost = new_HiBoost;
}
}
void EQP1A::set_HiCut(float new_HiCut) {
if (hiCut != new_HiCut) {
RCutHi1.setResistanceValue((1 - new_HiCut) * RCUTHI_MAX);
RCutHi2.setResistanceValue(new_HiCut * RCUTHI_MAX);
hiCut = new_HiCut;
}
}
void EQP1A::set_HiBQ(float new_HiBQ) {
if (hiBQ != new_HiBQ) {
RQ.setResistanceValue(new_HiBQ * RQ_MAX);
hiBQ = new_HiBQ;
}
}
void EQP1A::set_LoFreq(int new_LoFreq) {
if (loFreq != new_LoFreq) {
int freq;
switch (new_LoFreq) {
case 1:
freq = 30;
break;
case 2:
freq = 60;
break;
case 3:
freq = 100;
break;
default:
freq = 20;
break;
}
auto [LoFreqC1_value, LoFreqC2_value] = get_CapValuesLoFreq(freq);
LoFreqC1.setCapacitanceValue(LoFreqC1_value);
LoFreqC2.setCapacitanceValue(LoFreqC2_value);
loFreq = new_LoFreq;
}
}
void EQP1A::set_HiBoostFreq(int new_HiBoostFreq) {
if (hiBoostFreq != new_HiBoostFreq) {
int freq;
switch (new_HiBoostFreq) {
case 0:
freq = 3000;
break;
case 1:
freq = 4000;
break;
case 2:
freq = 5000;
break;
case 3:
freq = 8000;
break;
case 4:
freq = 10000;
break;
case 5:
freq = 12000;
break;
default:
freq = 16000;
break;
}
auto [C1_value, L1_value] = get_CompValuesHiBoost(freq);
C1.setCapacitanceValue(C1_value);
L1.setInductanceValue(L1_value);
hiBoostFreq = new_HiBoostFreq;
}
}
void EQP1A::set_HiCutFreq(int new_hiCutFreq) {
if (hiCutFreq != new_hiCutFreq) {
int freq;
switch (new_hiCutFreq) {
case 0:
freq = 5;
break;
case 1:
freq = 10;
break;
default:
freq = 20;
break;
}
auto CHiCut_value = get_CapValueHiCut(freq);
CHiCut.setCapacitanceValue(CHiCut_value);
hiCutFreq = new_hiCutFreq;
}
}
void EQP1A::prepare(double sampleRate) {
C1.prepare(sampleRate);
L1.prepare(sampleRate);
LoFreqC1.prepare(sampleRate);
LoFreqC2.prepare(sampleRate);
CHiCut.prepare(sampleRate);
this->sampleRate = sampleRate;
}
double EQP1A::processSample(double sample) {
Vin.setVoltage(sample);
Vin.incident(S3.reflected());
S3.incident(Vin.reflected());
//Makeup for the insertion loss of the filter
return (-wdft::voltage<double>(J) + wdft::voltage<double>(R3)) * 15.4882;
}
std::tuple<double, double> EQP1A::get_CapValuesLoFreq(int loFreq) {
double LoFreqC1_value, LoFreqC2_value;
switch (loFreq) {
case 20:
LoFreqC2_value = 2.2e-6;
break;
case 30:
LoFreqC2_value = 1.1e-6;
break;
case 60:
LoFreqC2_value = 560e-9;
break;
default:
LoFreqC2_value = 330e-9;
break;
}
LoFreqC1_value = LoFreqC2_value / 30;
return std::make_tuple(LoFreqC1_value, LoFreqC2_value);
}
std::tuple<double, double> EQP1A::get_CompValuesHiBoost(int fc) {
double C1_value = sqrtf(1 / (RATIO_L1_C1 * powf(juce::MathConstants<float>::twoPi * fc, 2) ));
double L1_value = RATIO_L1_C1 * C1_value;
return std::make_tuple(C1_value, L1_value);
}
double EQP1A::get_CapValueHiCut(int hiCutFreq) {
double CHiCut_value;
switch (hiCutFreq) {
case 5:
CHiCut_value = 270e-9;
break;
case 10:
CHiCut_value = 135e-9;
break;
default:
CHiCut_value = 68e-9;
}
return CHiCut_value;
}