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airwindows/plugins/MacSignedVST/Capacitor/source/CapacitorProc.cpp
Christopher Johnson f06250c082 Clarifying Licensing in boilerplate code generation
2022-11-21 09:20:21 -05:00

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/* ========================================
* Capacitor - Capacitor.h
* Copyright (c) 2016 airwindows, Airwindows uses the MIT license
* ======================================== */
#ifndef __Capacitor_H
#include "Capacitor.h"
#endif
void Capacitor::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames)
{
float* in1 = inputs[0];
float* in2 = inputs[1];
float* out1 = outputs[0];
float* out2 = outputs[1];
lowpassChase = pow(A,2);
highpassChase = pow(B,2);
wetChase = C;
//should not scale with sample rate, because values reaching 1 are important
//to its ability to bypass when set to max
double lowpassSpeed = 300 / (fabs( lastLowpass - lowpassChase)+1.0);
double highpassSpeed = 300 / (fabs( lastHighpass - highpassChase)+1.0);
double wetSpeed = 300 / (fabs( lastWet - wetChase)+1.0);
lastLowpass = lowpassChase;
lastHighpass = highpassChase;
lastWet = wetChase;
double invLowpass;
double invHighpass;
double dry;
double inputSampleL;
double inputSampleR;
float drySampleL;
float drySampleR;
while (--sampleFrames >= 0)
{
inputSampleL = *in1;
inputSampleR = *in2;
if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpdL * 1.18e-17;
if (fabs(inputSampleR)<1.18e-23) inputSampleR = fpdR * 1.18e-17;
drySampleL = inputSampleL;
drySampleR = inputSampleR;
lowpassAmount = (((lowpassAmount*lowpassSpeed)+lowpassChase)/(lowpassSpeed + 1.0)); invLowpass = 1.0 - lowpassAmount;
highpassAmount = (((highpassAmount*highpassSpeed)+highpassChase)/(highpassSpeed + 1.0)); invHighpass = 1.0 - highpassAmount;
wet = (((wet*wetSpeed)+wetChase)/(wetSpeed+1.0)); dry = 1.0 - wet;
count++; if (count > 5) count = 0; switch (count)
{
case 0:
iirHighpassAL = (iirHighpassAL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassAL;
iirLowpassAL = (iirLowpassAL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassAL;
iirHighpassBL = (iirHighpassBL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassBL;
iirLowpassBL = (iirLowpassBL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassBL;
iirHighpassDL = (iirHighpassDL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassDL;
iirLowpassDL = (iirLowpassDL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassDL;
iirHighpassAR = (iirHighpassAR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassAR;
iirLowpassAR = (iirLowpassAR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassAR;
iirHighpassBR = (iirHighpassBR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassBR;
iirLowpassBR = (iirLowpassBR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassBR;
iirHighpassDR = (iirHighpassDR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassDR;
iirLowpassDR = (iirLowpassDR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassDR;
break;
case 1:
iirHighpassAL = (iirHighpassAL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassAL;
iirLowpassAL = (iirLowpassAL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassAL;
iirHighpassCL = (iirHighpassCL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassCL;
iirLowpassCL = (iirLowpassCL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassCL;
iirHighpassEL = (iirHighpassEL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassEL;
iirLowpassEL = (iirLowpassEL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassEL;
iirHighpassAR = (iirHighpassAR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassAR;
iirLowpassAR = (iirLowpassAR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassAR;
iirHighpassCR = (iirHighpassCR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassCR;
iirLowpassCR = (iirLowpassCR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassCR;
iirHighpassER = (iirHighpassER * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassER;
iirLowpassER = (iirLowpassER * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassER;
break;
case 2:
iirHighpassAL = (iirHighpassAL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassAL;
iirLowpassAL = (iirLowpassAL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassAL;
iirHighpassBL = (iirHighpassBL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassBL;
iirLowpassBL = (iirLowpassBL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassBL;
iirHighpassFL = (iirHighpassFL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassFL;
iirLowpassFL = (iirLowpassFL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassFL;
iirHighpassAR = (iirHighpassAR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassAR;
iirLowpassAR = (iirLowpassAR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassAR;
iirHighpassBR = (iirHighpassBR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassBR;
iirLowpassBR = (iirLowpassBR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassBR;
iirHighpassFR = (iirHighpassFR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassFR;
iirLowpassFR = (iirLowpassFR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassFR;
break;
case 3:
iirHighpassAL = (iirHighpassAL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassAL;
iirLowpassAL = (iirLowpassAL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassAL;
iirHighpassCL = (iirHighpassCL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassCL;
iirLowpassCL = (iirLowpassCL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassCL;
iirHighpassDL = (iirHighpassDL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassDL;
iirLowpassDL = (iirLowpassDL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassDL;
iirHighpassAR = (iirHighpassAR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassAR;
iirLowpassAR = (iirLowpassAR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassAR;
iirHighpassCR = (iirHighpassCR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassCR;
iirLowpassCR = (iirLowpassCR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassCR;
iirHighpassDR = (iirHighpassDR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassDR;
iirLowpassDR = (iirLowpassDR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassDR;
break;
case 4:
iirHighpassAL = (iirHighpassAL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassAL;
iirLowpassAL = (iirLowpassAL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassAL;
iirHighpassBL = (iirHighpassBL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassBL;
iirLowpassBL = (iirLowpassBL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassBL;
iirHighpassEL = (iirHighpassEL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassEL;
iirLowpassEL = (iirLowpassEL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassEL;
iirHighpassAR = (iirHighpassAR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassAR;
iirLowpassAR = (iirLowpassAR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassAR;
iirHighpassBR = (iirHighpassBR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassBR;
iirLowpassBR = (iirLowpassBR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassBR;
iirHighpassER = (iirHighpassER * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassER;
iirLowpassER = (iirLowpassER * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassER;
break;
case 5:
iirHighpassAL = (iirHighpassAL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassAL;
iirLowpassAL = (iirLowpassAL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassAL;
iirHighpassCL = (iirHighpassCL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassCL;
iirLowpassCL = (iirLowpassCL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassCL;
iirHighpassFL = (iirHighpassFL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassFL;
iirLowpassFL = (iirLowpassFL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassFL;
iirHighpassAR = (iirHighpassAR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassAR;
iirLowpassAR = (iirLowpassAR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassAR;
iirHighpassCR = (iirHighpassCR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassCR;
iirLowpassCR = (iirLowpassCR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassCR;
iirHighpassFR = (iirHighpassFR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassFR;
iirLowpassFR = (iirLowpassFR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassFR;
break;
}
//Highpass Filter chunk. This is three poles of IIR highpass, with a 'gearbox' that progressively
//steepens the filter after minimizing artifacts.
inputSampleL = (drySampleL * dry) + (inputSampleL * wet);
inputSampleR = (drySampleR * dry) + (inputSampleR * wet);
//begin 32 bit stereo floating point dither
int expon; frexpf((float)inputSampleL, &expon);
fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
frexpf((float)inputSampleR, &expon);
fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
//end 32 bit stereo floating point dither
*out1 = inputSampleL;
*out2 = inputSampleR;
*in1++;
*in2++;
*out1++;
*out2++;
}
}
void Capacitor::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames)
{
double* in1 = inputs[0];
double* in2 = inputs[1];
double* out1 = outputs[0];
double* out2 = outputs[1];
lowpassChase = pow(A,2);
highpassChase = pow(B,2);
wetChase = C;
//should not scale with sample rate, because values reaching 1 are important
//to its ability to bypass when set to max
double lowpassSpeed = 300 / (fabs( lastLowpass - lowpassChase)+1.0);
double highpassSpeed = 300 / (fabs( lastHighpass - highpassChase)+1.0);
double wetSpeed = 300 / (fabs( lastWet - wetChase)+1.0);
lastLowpass = lowpassChase;
lastHighpass = highpassChase;
lastWet = wetChase;
double invLowpass;
double invHighpass;
double dry;
double inputSampleL;
double inputSampleR;
double drySampleL;
double drySampleR;
while (--sampleFrames >= 0)
{
inputSampleL = *in1;
inputSampleR = *in2;
if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpdL * 1.18e-17;
if (fabs(inputSampleR)<1.18e-23) inputSampleR = fpdR * 1.18e-17;
drySampleL = inputSampleL;
drySampleR = inputSampleR;
lowpassAmount = (((lowpassAmount*lowpassSpeed)+lowpassChase)/(lowpassSpeed + 1.0)); invLowpass = 1.0 - lowpassAmount;
highpassAmount = (((highpassAmount*highpassSpeed)+highpassChase)/(highpassSpeed + 1.0)); invHighpass = 1.0 - highpassAmount;
wet = (((wet*wetSpeed)+wetChase)/(wetSpeed+1.0)); dry = 1.0 - wet;
count++; if (count > 5) count = 0; switch (count)
{
case 0:
iirHighpassAL = (iirHighpassAL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassAL;
iirLowpassAL = (iirLowpassAL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassAL;
iirHighpassBL = (iirHighpassBL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassBL;
iirLowpassBL = (iirLowpassBL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassBL;
iirHighpassDL = (iirHighpassDL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassDL;
iirLowpassDL = (iirLowpassDL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassDL;
iirHighpassAR = (iirHighpassAR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassAR;
iirLowpassAR = (iirLowpassAR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassAR;
iirHighpassBR = (iirHighpassBR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassBR;
iirLowpassBR = (iirLowpassBR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassBR;
iirHighpassDR = (iirHighpassDR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassDR;
iirLowpassDR = (iirLowpassDR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassDR;
break;
case 1:
iirHighpassAL = (iirHighpassAL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassAL;
iirLowpassAL = (iirLowpassAL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassAL;
iirHighpassCL = (iirHighpassCL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassCL;
iirLowpassCL = (iirLowpassCL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassCL;
iirHighpassEL = (iirHighpassEL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassEL;
iirLowpassEL = (iirLowpassEL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassEL;
iirHighpassAR = (iirHighpassAR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassAR;
iirLowpassAR = (iirLowpassAR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassAR;
iirHighpassCR = (iirHighpassCR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassCR;
iirLowpassCR = (iirLowpassCR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassCR;
iirHighpassER = (iirHighpassER * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassER;
iirLowpassER = (iirLowpassER * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassER;
break;
case 2:
iirHighpassAL = (iirHighpassAL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassAL;
iirLowpassAL = (iirLowpassAL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassAL;
iirHighpassBL = (iirHighpassBL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassBL;
iirLowpassBL = (iirLowpassBL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassBL;
iirHighpassFL = (iirHighpassFL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassFL;
iirLowpassFL = (iirLowpassFL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassFL;
iirHighpassAR = (iirHighpassAR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassAR;
iirLowpassAR = (iirLowpassAR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassAR;
iirHighpassBR = (iirHighpassBR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassBR;
iirLowpassBR = (iirLowpassBR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassBR;
iirHighpassFR = (iirHighpassFR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassFR;
iirLowpassFR = (iirLowpassFR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassFR;
break;
case 3:
iirHighpassAL = (iirHighpassAL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassAL;
iirLowpassAL = (iirLowpassAL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassAL;
iirHighpassCL = (iirHighpassCL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassCL;
iirLowpassCL = (iirLowpassCL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassCL;
iirHighpassDL = (iirHighpassDL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassDL;
iirLowpassDL = (iirLowpassDL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassDL;
iirHighpassAR = (iirHighpassAR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassAR;
iirLowpassAR = (iirLowpassAR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassAR;
iirHighpassCR = (iirHighpassCR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassCR;
iirLowpassCR = (iirLowpassCR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassCR;
iirHighpassDR = (iirHighpassDR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassDR;
iirLowpassDR = (iirLowpassDR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassDR;
break;
case 4:
iirHighpassAL = (iirHighpassAL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassAL;
iirLowpassAL = (iirLowpassAL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassAL;
iirHighpassBL = (iirHighpassBL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassBL;
iirLowpassBL = (iirLowpassBL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassBL;
iirHighpassEL = (iirHighpassEL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassEL;
iirLowpassEL = (iirLowpassEL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassEL;
iirHighpassAR = (iirHighpassAR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassAR;
iirLowpassAR = (iirLowpassAR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassAR;
iirHighpassBR = (iirHighpassBR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassBR;
iirLowpassBR = (iirLowpassBR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassBR;
iirHighpassER = (iirHighpassER * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassER;
iirLowpassER = (iirLowpassER * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassER;
break;
case 5:
iirHighpassAL = (iirHighpassAL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassAL;
iirLowpassAL = (iirLowpassAL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassAL;
iirHighpassCL = (iirHighpassCL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassCL;
iirLowpassCL = (iirLowpassCL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassCL;
iirHighpassFL = (iirHighpassFL * invHighpass) + (inputSampleL * highpassAmount); inputSampleL -= iirHighpassFL;
iirLowpassFL = (iirLowpassFL * invLowpass) + (inputSampleL * lowpassAmount); inputSampleL = iirLowpassFL;
iirHighpassAR = (iirHighpassAR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassAR;
iirLowpassAR = (iirLowpassAR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassAR;
iirHighpassCR = (iirHighpassCR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassCR;
iirLowpassCR = (iirLowpassCR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassCR;
iirHighpassFR = (iirHighpassFR * invHighpass) + (inputSampleR * highpassAmount); inputSampleR -= iirHighpassFR;
iirLowpassFR = (iirLowpassFR * invLowpass) + (inputSampleR * lowpassAmount); inputSampleR = iirLowpassFR;
break;
}
//Highpass Filter chunk. This is three poles of IIR highpass, with a 'gearbox' that progressively
//steepens the filter after minimizing artifacts.
inputSampleL = (drySampleL * dry) + (inputSampleL * wet);
inputSampleR = (drySampleR * dry) + (inputSampleR * wet);
//begin 64 bit stereo floating point dither
//int expon; frexp((double)inputSampleL, &expon);
fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
//inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62));
//frexp((double)inputSampleR, &expon);
fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
//inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62));
//end 64 bit stereo floating point dither
*out1 = inputSampleL;
*out2 = inputSampleR;
*in1++;
*in2++;
*out1++;
*out2++;
}
}
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