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256 lines
No EOL
7.6 KiB
C++
Executable file
256 lines
No EOL
7.6 KiB
C++
Executable file
/* ========================================
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* Desk - Desk.h
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* Copyright (c) 2016 airwindows, Airwindows uses the MIT license
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* ======================================== */
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#ifndef __Desk_H
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#include "Desk.h"
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#endif
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void Desk::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames)
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{
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float* in1 = inputs[0];
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float* in2 = inputs[1];
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float* out1 = outputs[0];
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float* out2 = outputs[1];
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double gain = 0.135;
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double slewgain = 0.208;
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double prevslew = 0.333;
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double balanceB = 0.0001;
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double overallscale = 1.0;
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overallscale /= 44100.0;
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overallscale *= getSampleRate();
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slewgain *= overallscale;
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prevslew *= overallscale;
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balanceB /= overallscale;
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double balanceA = 1.0 - balanceB;
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double slew;
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double bridgerectifier;
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double combsample;
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double inputSampleL;
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double inputSampleR;
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double drySampleL;
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double drySampleR;
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while (--sampleFrames >= 0)
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{
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inputSampleL = *in1;
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inputSampleR = *in2;
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if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpdL * 1.18e-17;
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if (fabs(inputSampleR)<1.18e-23) inputSampleR = fpdR * 1.18e-17;
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drySampleL = inputSampleL;
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drySampleR = inputSampleR;
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//begin L
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slew = inputSampleL - lastSampleL;
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lastSampleL = inputSampleL;
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//Set up direct reference for slew
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bridgerectifier = fabs(slew*slewgain);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.0;
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else bridgerectifier = sin(bridgerectifier);
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if (slew > 0) slew = bridgerectifier/slewgain;
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else slew = -(bridgerectifier/slewgain);
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inputSampleL = (lastOutSampleL*balanceA) + (lastSampleL*balanceB) + slew;
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//go from last slewed, but include some raw values
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lastOutSampleL = inputSampleL;
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//Set up slewed reference
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combsample = fabs(drySampleL*lastSampleL);
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if (combsample > 1.0) combsample = 1.0;
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//bailout for very high input gains
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inputSampleL -= (lastSlewL * combsample * prevslew);
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lastSlewL = slew;
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//slew interaction with previous slew
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inputSampleL *= gain;
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bridgerectifier = fabs(inputSampleL);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.0;
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else bridgerectifier = sin(bridgerectifier);
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if (inputSampleL > 0) inputSampleL = bridgerectifier;
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else inputSampleL = -bridgerectifier;
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//drive section
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inputSampleL /= gain;
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//end L
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//begin R
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slew = inputSampleR - lastSampleR;
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lastSampleR = inputSampleR;
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//Set up direct reference for slew
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bridgerectifier = fabs(slew*slewgain);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.0;
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else bridgerectifier = sin(bridgerectifier);
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if (slew > 0) slew = bridgerectifier/slewgain;
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else slew = -(bridgerectifier/slewgain);
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inputSampleR = (lastOutSampleR*balanceA) + (lastSampleR*balanceB) + slew;
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//go from last slewed, but include some raw values
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lastOutSampleR = inputSampleR;
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//Set up slewed reference
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combsample = fabs(drySampleR*lastSampleR);
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if (combsample > 1.0) combsample = 1.0;
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//bailout for very high input gains
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inputSampleR -= (lastSlewR * combsample * prevslew);
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lastSlewR = slew;
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//slew interaction with previous slew
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inputSampleR *= gain;
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bridgerectifier = fabs(inputSampleR);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.0;
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else bridgerectifier = sin(bridgerectifier);
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if (inputSampleR > 0) inputSampleR = bridgerectifier;
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else inputSampleR = -bridgerectifier;
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//drive section
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inputSampleR /= gain;
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//end R
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//begin 32 bit stereo floating point dither
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int expon; frexpf((float)inputSampleL, &expon);
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fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
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inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
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frexpf((float)inputSampleR, &expon);
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fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
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inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
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//end 32 bit stereo floating point dither
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*out1 = inputSampleL;
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*out2 = inputSampleR;
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*in1++;
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*in2++;
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*out1++;
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*out2++;
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}
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}
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void Desk::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames)
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{
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double* in1 = inputs[0];
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double* in2 = inputs[1];
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double* out1 = outputs[0];
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double* out2 = outputs[1];
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double gain = 0.135;
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double slewgain = 0.208;
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double prevslew = 0.333;
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double balanceB = 0.0001;
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double overallscale = 1.0;
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overallscale /= 44100.0;
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overallscale *= getSampleRate();
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slewgain *= overallscale;
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prevslew *= overallscale;
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balanceB /= overallscale;
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double balanceA = 1.0 - balanceB;
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double slew;
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double bridgerectifier;
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double combsample;
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double inputSampleL;
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double inputSampleR;
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double drySampleL;
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double drySampleR;
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while (--sampleFrames >= 0)
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{
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inputSampleL = *in1;
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inputSampleR = *in2;
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if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpdL * 1.18e-17;
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if (fabs(inputSampleR)<1.18e-23) inputSampleR = fpdR * 1.18e-17;
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drySampleL = inputSampleL;
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drySampleR = inputSampleR;
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//begin L
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slew = inputSampleL - lastSampleL;
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lastSampleL = inputSampleL;
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//Set up direct reference for slew
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bridgerectifier = fabs(slew*slewgain);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.0;
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else bridgerectifier = sin(bridgerectifier);
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if (slew > 0) slew = bridgerectifier/slewgain;
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else slew = -(bridgerectifier/slewgain);
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inputSampleL = (lastOutSampleL*balanceA) + (lastSampleL*balanceB) + slew;
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//go from last slewed, but include some raw values
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lastOutSampleL = inputSampleL;
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//Set up slewed reference
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combsample = fabs(drySampleL*lastSampleL);
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if (combsample > 1.0) combsample = 1.0;
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//bailout for very high input gains
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inputSampleL -= (lastSlewL * combsample * prevslew);
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lastSlewL = slew;
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//slew interaction with previous slew
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inputSampleL *= gain;
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bridgerectifier = fabs(inputSampleL);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.0;
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else bridgerectifier = sin(bridgerectifier);
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if (inputSampleL > 0) inputSampleL = bridgerectifier;
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else inputSampleL = -bridgerectifier;
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//drive section
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inputSampleL /= gain;
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//end L
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//begin R
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slew = inputSampleR - lastSampleR;
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lastSampleR = inputSampleR;
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//Set up direct reference for slew
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bridgerectifier = fabs(slew*slewgain);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.0;
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else bridgerectifier = sin(bridgerectifier);
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if (slew > 0) slew = bridgerectifier/slewgain;
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else slew = -(bridgerectifier/slewgain);
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inputSampleR = (lastOutSampleR*balanceA) + (lastSampleR*balanceB) + slew;
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//go from last slewed, but include some raw values
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lastOutSampleR = inputSampleR;
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//Set up slewed reference
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combsample = fabs(drySampleR*lastSampleR);
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if (combsample > 1.0) combsample = 1.0;
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//bailout for very high input gains
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inputSampleR -= (lastSlewR * combsample * prevslew);
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lastSlewR = slew;
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//slew interaction with previous slew
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inputSampleR *= gain;
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bridgerectifier = fabs(inputSampleR);
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if (bridgerectifier > 1.57079633) bridgerectifier = 1.0;
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else bridgerectifier = sin(bridgerectifier);
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if (inputSampleR > 0) inputSampleR = bridgerectifier;
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else inputSampleR = -bridgerectifier;
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//drive section
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inputSampleR /= gain;
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//end R
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//begin 64 bit stereo floating point dither
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//int expon; frexp((double)inputSampleL, &expon);
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fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
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//inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62));
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//frexp((double)inputSampleR, &expon);
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fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
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//inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62));
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//end 64 bit stereo floating point dither
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*out1 = inputSampleL;
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*out2 = inputSampleR;
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*in1++;
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*in2++;
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*out1++;
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*out2++;
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}
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} |