diff options
Diffstat (limited to 'plugins/WinVST/Capacitor/CapacitorProc.cpp')
| -rwxr-xr-x | plugins/WinVST/Capacitor/CapacitorProc.cpp | 418 |
1 files changed, 418 insertions, 0 deletions
diff --git a/plugins/WinVST/Capacitor/CapacitorProc.cpp b/plugins/WinVST/Capacitor/CapacitorProc.cpp new file mode 100755 index 0000000..6accb0d --- /dev/null +++ b/plugins/WinVST/Capacitor/CapacitorProc.cpp @@ -0,0 +1,418 @@ +/* ======================================== + * Capacitor - Capacitor.h + * Copyright (c) 2016 airwindows, All rights reserved + * ======================================== */ + +#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; + + float fpTemp; + long double fpOld = 0.618033988749894848204586; //golden ratio! + long double fpNew = 1.0 - fpOld; + + long double inputSampleL; + long double inputSampleR; + float drySampleL; + float drySampleR; + + while (--sampleFrames >= 0) + { + inputSampleL = *in1; + inputSampleR = *in2; + if (inputSampleL<1.2e-38 && -inputSampleL<1.2e-38) { + static int noisesource = 0; + //this declares a variable before anything else is compiled. It won't keep assigning + //it to 0 for every sample, it's as if the declaration doesn't exist in this context, + //but it lets me add this denormalization fix in a single place rather than updating + //it in three different locations. The variable isn't thread-safe but this is only + //a random seed and we can share it with whatever. + noisesource = noisesource % 1700021; noisesource++; + int residue = noisesource * noisesource; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + double applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleL = applyresidue; + } + if (inputSampleR<1.2e-38 && -inputSampleR<1.2e-38) { + static int noisesource = 0; + noisesource = noisesource % 1700021; noisesource++; + int residue = noisesource * noisesource; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + double applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleR = applyresidue; + //this denormalization routine produces a white noise at -300 dB which the noise + //shaping will interact with to produce a bipolar output, but the noise is actually + //all positive. That should stop any variables from going denormal, and the routine + //only kicks in if digital black is input. As a final touch, if you save to 24-bit + //the silence will return to being digital black again. + } + 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); + + //noise shaping to 32-bit floating point + if (fpFlip) { + fpTemp = inputSampleL; + fpNShapeLA = (fpNShapeLA*fpOld)+((inputSampleL-fpTemp)*fpNew); + inputSampleL += fpNShapeLA; + fpTemp = inputSampleR; + fpNShapeRA = (fpNShapeRA*fpOld)+((inputSampleR-fpTemp)*fpNew); + inputSampleR += fpNShapeRA; + } + else { + fpTemp = inputSampleL; + fpNShapeLB = (fpNShapeLB*fpOld)+((inputSampleL-fpTemp)*fpNew); + inputSampleL += fpNShapeLB; + fpTemp = inputSampleR; + fpNShapeRB = (fpNShapeRB*fpOld)+((inputSampleR-fpTemp)*fpNew); + inputSampleR += fpNShapeRB; + } + fpFlip = !fpFlip; + //end noise shaping on 32 bit output + + *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 fpTemp; + long double fpOld = 0.618033988749894848204586; //golden ratio! + long double fpNew = 1.0 - fpOld; + + long double inputSampleL; + long double inputSampleR; + double drySampleL; + double drySampleR; + + + while (--sampleFrames >= 0) + { + inputSampleL = *in1; + inputSampleR = *in2; + if (inputSampleL<1.2e-38 && -inputSampleL<1.2e-38) { + static int noisesource = 0; + //this declares a variable before anything else is compiled. It won't keep assigning + //it to 0 for every sample, it's as if the declaration doesn't exist in this context, + //but it lets me add this denormalization fix in a single place rather than updating + //it in three different locations. The variable isn't thread-safe but this is only + //a random seed and we can share it with whatever. + noisesource = noisesource % 1700021; noisesource++; + int residue = noisesource * noisesource; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + double applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleL = applyresidue; + } + if (inputSampleR<1.2e-38 && -inputSampleR<1.2e-38) { + static int noisesource = 0; + noisesource = noisesource % 1700021; noisesource++; + int residue = noisesource * noisesource; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + double applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleR = applyresidue; + //this denormalization routine produces a white noise at -300 dB which the noise + //shaping will interact with to produce a bipolar output, but the noise is actually + //all positive. That should stop any variables from going denormal, and the routine + //only kicks in if digital black is input. As a final touch, if you save to 24-bit + //the silence will return to being digital black again. + } + 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); + + //noise shaping to 64-bit floating point + if (fpFlip) { + fpTemp = inputSampleL; + fpNShapeLA = (fpNShapeLA*fpOld)+((inputSampleL-fpTemp)*fpNew); + inputSampleL += fpNShapeLA; + fpTemp = inputSampleR; + fpNShapeRA = (fpNShapeRA*fpOld)+((inputSampleR-fpTemp)*fpNew); + inputSampleR += fpNShapeRA; + } + else { + fpTemp = inputSampleL; + fpNShapeLB = (fpNShapeLB*fpOld)+((inputSampleL-fpTemp)*fpNew); + inputSampleL += fpNShapeLB; + fpTemp = inputSampleR; + fpNShapeRB = (fpNShapeRB*fpOld)+((inputSampleR-fpTemp)*fpNew); + inputSampleR += fpNShapeRB; + } + fpFlip = !fpFlip; + //end noise shaping on 64 bit output + + *out1 = inputSampleL; + *out2 = inputSampleR; + + *in1++; + *in2++; + *out1++; + *out2++; + } +}
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