/* ========================================
* ADClip7 - ADClip7.h
* Copyright (c) 2016 airwindows, All rights reserved
* ======================================== */
#ifndef __ADClip7_H
#include "ADClip7.h"
#endif
void ADClip7::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames)
{
float* in1 = inputs[0];
float* in2 = inputs[1];
float* out1 = outputs[0];
float* out2 = outputs[1];
double overallscale = 1.0;
overallscale /= 44100.0;
overallscale *= getSampleRate();
long double fpOld = 0.618033988749894848204586; //golden ratio!
long double fpNew = 1.0 - fpOld;
double inputGain = pow(10.0,(A*18.0)/20.0);
double softness = B * fpNew;
double hardness = 1.0 - softness;
double highslift = 0.307 * C;
double adjust = pow(highslift,3) * 0.416;
double subslift = 0.796 * C;
double calibsubs = subslift/53;
double invcalibsubs = 1.0 - calibsubs;
double subs = 0.81 + (calibsubs*2);
long double bridgerectifier;
int mode = (int) floor(D*2.999)+1;
double overshootL;
double overshootR;
double offsetH1 = 1.84;
offsetH1 *= overallscale;
double offsetH2 = offsetH1 * 1.9;
double offsetH3 = offsetH1 * 2.7;
double offsetL1 = 612;
offsetL1 *= overallscale;
double offsetL2 = offsetL1 * 2.0;
int refH1 = (int)floor(offsetH1);
int refH2 = (int)floor(offsetH2);
int refH3 = (int)floor(offsetH3);
int refL1 = (int)floor(offsetL1);
int refL2 = (int)floor(offsetL2);
int temp;
double fractionH1 = offsetH1 - floor(offsetH1);
double fractionH2 = offsetH2 - floor(offsetH2);
double fractionH3 = offsetH3 - floor(offsetH3);
double minusH1 = 1.0 - fractionH1;
double minusH2 = 1.0 - fractionH2;
double minusH3 = 1.0 - fractionH3;
double highsL = 0.0;
double highsR = 0.0;
int count = 0;
long double inputSampleL;
long double inputSampleR;
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.
}
if (inputGain != 1.0) {
inputSampleL *= inputGain;
inputSampleR *= inputGain;
}
overshootL = fabs(inputSampleL) - refclipL;
overshootR = fabs(inputSampleR) - refclipR;
if (overshootL < 0.0) overshootL = 0.0;
if (overshootR < 0.0) overshootR = 0.0;
if (gcount < 0 || gcount > 11020) {gcount = 11020;}
count = gcount;
bL[count+11020] = bL[count] = overshootL;
bR[count+11020] = bR[count] = overshootR;
gcount--;
if (highslift > 0.0)
{
//we have a big pile of b[] which is overshoots
temp = count+refH3;
highsL = -(bL[temp] * minusH3); //less as value moves away from .0
highsL -= bL[temp+1]; //we can assume always using this in one way or another?
highsL -= (bL[temp+2] * fractionH3); //greater as value moves away from .0
highsL += (((bL[temp]-bL[temp+1])-(bL[temp+1]-bL[temp+2]))/50); //interpolation hacks 'r us
highsL *= adjust; //add in the kernel elements backwards saves multiplies
//stage 3 is a negative add
highsR = -(bR[temp] * minusH3); //less as value moves away from .0
highsR -= bR[temp+1]; //we can assume always using this in one way or another?
highsR -= (bR[temp+2] * fractionH3); //greater as value moves away from .0
highsR += (((bR[temp]-bR[temp+1])-(bR[temp+1]-bR[temp+2]))/50); //interpolation hacks 'r us
highsR *= adjust; //add in the kernel elements backwards saves multiplies
//stage 3 is a negative add
temp = count+refH2;
highsL += (bL[temp] * minusH2); //less as value moves away from .0
highsL += bL[temp+1]; //we can assume always using this in one way or another?
highsL += (bL[temp+2] * fractionH2); //greater as value moves away from .0
highsL -= (((bL[temp]-bL[temp+1])-(bL[temp+1]-bL[temp+2]))/50); //interpolation hacks 'r us
highsL *= adjust; //add in the kernel elements backwards saves multiplies
//stage 2 is a positive feedback of the overshoot
highsR += (bR[temp] * minusH2); //less as value moves away from .0
highsR += bR[temp+1]; //we can assume always using this in one way or another?
highsR += (bR[temp+2] * fractionH2); //greater as value moves away from .0
highsR -= (((bR[temp]-bR[temp+1])-(bR[temp+1]-bR[temp+2]))/50); //interpolation hacks 'r us
highsR *= adjust; //add in the kernel elements backwards saves multiplies
//stage 2 is a positive feedback of the overshoot
temp = count+refH1;
highsL -= (bL[temp] * minusH1); //less as value moves away from .0
highsL -= bL[temp+1]; //we can assume always using this in one way or another?
highsL -= (bL[temp+2] * fractionH1); //greater as value moves away from .0
highsL += (((bL[temp]-bL[temp+1])-(bL[temp+1]-bL[temp+2]))/50); //interpolation hacks 'r us
highsL *= adjust; //add in the kernel elements backwards saves multiplies
//stage 1 is a negative feedback of the overshoot
highsR -= (bR[temp] * minusH1); //less as value moves away from .0
highsR -= bR[temp+1]; //we can assume always using this in one way or another?
highsR -= (bR[temp+2] * fractionH1); //greater as value moves away from .0
highsR += (((bR[temp]-bR[temp+1])-(bR[temp+1]-bR[temp+2]))/50); //interpolation hacks 'r us
highsR *= adjust; //add in the kernel elements backwards saves multiplies
//stage 1 is a negative feedback of the overshoot
//done with interpolated mostly negative feedback of the overshoot
}
bridgerectifier = sin(fabs(highsL) * hardness);
//this will wrap around and is scaled back by softness
//wrap around is the same principle as Fracture: no top limit to sin()
if (highsL > 0) highsL = bridgerectifier;
else highsL = -bridgerectifier;
bridgerectifier = sin(fabs(highsR) * hardness);
//this will wrap around and is scaled back by softness
//wrap around is the same principle as Fracture: no top limit to sin()
if (highsR > 0) highsR = bridgerectifier;
else highsR = -bridgerectifier;
if (subslift > 0.0)
{
lowsL *= subs;
lowsR *= subs;
//going in we'll reel back some of the swing
temp = count+refL1;
lowsL -= bL[temp+127];
lowsL -= bL[temp+113];
lowsL -= bL[temp+109];
lowsL -= bL[temp+107];
lowsL -= bL[temp+103];
lowsL -= bL[temp+101];
lowsL -= bL[temp+97];
lowsL -= bL[temp+89];
lowsL -= bL[temp+83];
lowsL -= bL[temp+79];
lowsL -= bL[temp+73];
lowsL -= bL[temp+71];
lowsL -= bL[temp+67];
lowsL -= bL[temp+61];
lowsL -= bL[temp+59];
lowsL -= bL[temp+53];
lowsL -= bL[temp+47];
lowsL -= bL[temp+43];
lowsL -= bL[temp+41];
lowsL -= bL[temp+37];
lowsL -= bL[temp+31];
lowsL -= bL[temp+29];
lowsL -= bL[temp+23];
lowsL -= bL[temp+19];
lowsL -= bL[temp+17];
lowsL -= bL[temp+13];
lowsL -= bL[temp+11];
lowsL -= bL[temp+7];
lowsL -= bL[temp+5];
lowsL -= bL[temp+3];
lowsL -= bL[temp+2];
lowsL -= bL[temp+1];
//initial negative lobe
lowsR -= bR[temp+127];
lowsR -= bR[temp+113];
lowsR -= bR[temp+109];
lowsR -= bR[temp+107];
lowsR -= bR[temp+103];
lowsR -= bR[temp+101];
lowsR -= bR[temp+97];
lowsR -= bR[temp+89];
lowsR -= bR[temp+83];
lowsR -= bR[temp+79];
lowsR -= bR[temp+73];
lowsR -= bR[temp+71];
lowsR -= bR[temp+67];
lowsR -= bR[temp+61];
lowsR -= bR[temp+59];
lowsR -= bR[temp+53];
lowsR -= bR[temp+47];
lowsR -= bR[temp+43];
lowsR -= bR[temp+41];
lowsR -= bR[temp+37];
lowsR -= bR[temp+31];
lowsR -= bR[temp+29];
lowsR -= bR[temp+23];
lowsR -= bR[temp+19];
lowsR -= bR[temp+17];
lowsR -= bR[temp+13];
lowsR -= bR[temp+11];
lowsR -= bR[temp+7];
lowsR -= bR[temp+5];
lowsR -= bR[temp+3];
lowsR -= bR[temp+2];
lowsR -= bR[temp+1];
//initial negative lobe
lowsL *= subs;
lowsL *= subs;
lowsR *= subs;
lowsR *= subs;
//twice, to minimize the suckout in low boost situations
temp = count+refL2;
lowsL += bL[temp+127];
lowsL += bL[temp+113];
lowsL += bL[temp+109];
lowsL += bL[temp+107];
lowsL += bL[temp+103];
lowsL += bL[temp+101];
lowsL += bL[temp+97];
lowsL += bL[temp+89];
lowsL += bL[temp+83];
lowsL += bL[temp+79];
lowsL += bL[temp+73];
lowsL += bL[temp+71];
lowsL += bL[temp+67];
lowsL += bL[temp+61];
lowsL += bL[temp+59];
lowsL += bL[temp+53];
lowsL += bL[temp+47];
lowsL += bL[temp+43];
lowsL += bL[temp+41];
lowsL += bL[temp+37];
lowsL += bL[temp+31];
lowsL += bL[temp+29];
lowsL += bL[temp+23];
lowsL += bL[temp+19];
lowsL += bL[temp+17];
lowsL += bL[temp+13];
lowsL += bL[temp+11];
lowsL += bL[temp+7];
lowsL += bL[temp+5];
lowsL += bL[temp+3];
lowsL += bL[temp+2];
lowsL += bL[temp+1];
//followup positive lobe
lowsR += bR[temp+127];
lowsR += bR[temp+113];
lowsR += bR[temp+109];
lowsR += bR[temp+107];
lowsR += bR[temp+103];
lowsR += bR[temp+101];
lowsR += bR[temp+97];
lowsR += bR[temp+89];
lowsR += bR[temp+83];
lowsR += bR[temp+79];
lowsR += bR[temp+73];
lowsR += bR[temp+71];
lowsR += bR[temp+67];
lowsR += bR[temp+61];
lowsR += bR[temp+59];
lowsR += bR[temp+53];
lowsR += bR[temp+47];
lowsR += bR[temp+43];
lowsR += bR[temp+41];
lowsR += bR[temp+37];
lowsR += bR[temp+31];
lowsR += bR[temp+29];
lowsR += bR[temp+23];
lowsR += bR[temp+19];
lowsR += bR[temp+17];
lowsR += bR[temp+13];
lowsR += bR[temp+11];
lowsR += bR[temp+7];
lowsR += bR[temp+5];
lowsR += bR[temp+3];
lowsR += bR[temp+2];
lowsR += bR[temp+1];
//followup positive lobe
lowsL *= subs;
lowsR *= subs;
//now we have the lows content to use
}
bridgerectifier = sin(fabs(lowsL) * softness);
//this will wrap around and is scaled back by hardness: hard = less bass push, more treble
//wrap around is the same principle as Fracture: no top limit to sin()
if (lowsL > 0) lowsL = bridgerectifier;
else lowsL = -bridgerectifier;
bridgerectifier = sin(fabs(lowsR) * softness);
//this will wrap around and is scaled back by hardness: hard = less bass push, more treble
//wrap around is the same principle as Fracture: no top limit to sin()
if (lowsR > 0) lowsR = bridgerectifier;
else lowsR = -bridgerectifier;
iirLowsAL = (iirLowsAL * invcalibsubs) + (lowsL * calibsubs);
lowsL = iirLowsAL;
bridgerectifier = sin(fabs(lowsL));
if (lowsL > 0) lowsL = bridgerectifier;
else lowsL = -bridgerectifier;
iirLowsAR = (iirLowsAR * invcalibsubs) + (lowsR * calibsubs);
lowsR = iirLowsAR;
bridgerectifier = sin(fabs(lowsR));
if (lowsR > 0) lowsR = bridgerectifier;
else lowsR = -bridgerectifier;
iirLowsBL = (iirLowsBL * invcalibsubs) + (lowsL * calibsubs);
lowsL = iirLowsBL;
bridgerectifier = sin(fabs(lowsL)) * 2.0;
if (lowsL > 0) lowsL = bridgerectifier;
else lowsL = -bridgerectifier;
iirLowsBR = (iirLowsBR * invcalibsubs) + (lowsR * calibsubs);
lowsR = iirLowsBR;
bridgerectifier = sin(fabs(lowsR)) * 2.0;
if (lowsR > 0) lowsR = bridgerectifier;
else lowsR = -bridgerectifier;
if (highslift > 0.0) inputSampleL += (highsL * (1.0-fabs(inputSampleL*hardness)));
if (subslift > 0.0) inputSampleL += (lowsL * (1.0-fabs(inputSampleL*softness)));
if (highslift > 0.0) inputSampleR += (highsR * (1.0-fabs(inputSampleR*hardness)));
if (subslift > 0.0) inputSampleR += (lowsR * (1.0-fabs(inputSampleR*softness)));
if (inputSampleL > refclipL && refclipL > 0.9) refclipL -= 0.01;
if (inputSampleL < -refclipL && refclipL > 0.9) refclipL -= 0.01;
if (refclipL < 0.99) refclipL += 0.00001;
//adjust clip level on the fly
if (inputSampleR > refclipR && refclipR > 0.9) refclipR -= 0.01;
if (inputSampleR < -refclipR && refclipR > 0.9) refclipR -= 0.01;
if (refclipR < 0.99) refclipR += 0.00001;
//adjust clip level on the fly
if (lastSampleL >= refclipL)
{
if (inputSampleL < refclipL) lastSampleL = ((refclipL*hardness) + (inputSampleL * softness));
else lastSampleL = refclipL;
}
if (lastSampleR >= refclipR)
{
if (inputSampleR < refclipR) lastSampleR = ((refclipR*hardness) + (inputSampleR * softness));
else lastSampleR = refclipR;
}
if (lastSampleL <= -refclipL)
{
if (inputSampleL > -refclipL) lastSampleL = ((-refclipL*hardness) + (inputSampleL * softness));
else lastSampleL = -refclipL;
}
if (lastSampleR <= -refclipR)
{
if (inputSampleR > -refclipR) lastSampleR = ((-refclipR*hardness) + (inputSampleR * softness));
else lastSampleR = -refclipR;
}
if (inputSampleL > refclipL)
{
if (lastSampleL < refclipL) inputSampleL = ((refclipL*hardness) + (lastSampleL * softness));
else inputSampleL = refclipL;
}
if (inputSampleR > refclipR)
{
if (lastSampleR < refclipR) inputSampleR = ((refclipR*hardness) + (lastSampleR * softness));
else inputSampleR = refclipR;
}
if (inputSampleL < -refclipL)
{
if (lastSampleL > -refclipL) inputSampleL = ((-refclipL*hardness) + (lastSampleL * softness));
else inputSampleL = -refclipL;
}
if (inputSampleR < -refclipR)
{
if (lastSampleR > -refclipR) inputSampleR = ((-refclipR*hardness) + (lastSampleR * softness));
else inputSampleR = -refclipR;
}
lastSampleL = inputSampleL;
lastSampleR = inputSampleR;
switch (mode)
{
case 1: break; //Normal
case 2: inputSampleL /= inputGain; inputSampleR /= inputGain; break; //Gain Match
case 3: inputSampleL = overshootL + highsL + lowsL; inputSampleR = overshootR + highsR + lowsR; break; //Clip Only
}
//this is our output mode switch, showing the effects
if (inputSampleL > refclipL) inputSampleL = refclipL;
if (inputSampleL < -refclipL) inputSampleL = -refclipL;
if (inputSampleR > refclipR) inputSampleR = refclipR;
if (inputSampleR < -refclipR) inputSampleR = -refclipR;
//final iron bar
//stereo 32 bit dither, made small and tidy.
int expon; frexpf((float)inputSampleL, &expon);
long double dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62);
inputSampleL += (dither-fpNShapeL); fpNShapeL = dither;
frexpf((float)inputSampleR, &expon);
dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62);
inputSampleR += (dither-fpNShapeR); fpNShapeR = dither;
//end 32 bit dither
*out1 = inputSampleL;
*out2 = inputSampleR;
*in1++;
*in2++;
*out1++;
*out2++;
}
}
void ADClip7::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames)
{
double* in1 = inputs[0];
double* in2 = inputs[1];
double* out1 = outputs[0];
double* out2 = outputs[1];
double overallscale = 1.0;
overallscale /= 44100.0;
overallscale *= getSampleRate();
long double fpOld = 0.618033988749894848204586; //golden ratio!
long double fpNew = 1.0 - fpOld;
double inputGain = pow(10.0,(A*18.0)/20.0);
double softness = B * fpNew;
double hardness = 1.0 - softness;
double highslift = 0.307 * C;
double adjust = pow(highslift,3) * 0.416;
double subslift = 0.796 * C;
double calibsubs = subslift/53;
double invcalibsubs = 1.0 - calibsubs;
double subs = 0.81 + (calibsubs*2);
long double bridgerectifier;
int mode = (int) floor(D*2.999)+1;
double overshootL;
double overshootR;
double offsetH1 = 1.84;
offsetH1 *= overallscale;
double offsetH2 = offsetH1 * 1.9;
double offsetH3 = offsetH1 * 2.7;
double offsetL1 = 612;
offsetL1 *= overallscale;
double offsetL2 = offsetL1 * 2.0;
int refH1 = (int)floor(offsetH1);
int refH2 = (int)floor(offsetH2);
int refH3 = (int)floor(offsetH3);
int refL1 = (int)floor(offsetL1);
int refL2 = (int)floor(offsetL2);
int temp;
double fractionH1 = offsetH1 - floor(offsetH1);
double fractionH2 = offsetH2 - floor(offsetH2);
double fractionH3 = offsetH3 - floor(offsetH3);
double minusH1 = 1.0 - fractionH1;
double minusH2 = 1.0 - fractionH2;
double minusH3 = 1.0 - fractionH3;
double highsL = 0.0;
double highsR = 0.0;
int count = 0;
long double inputSampleL;
long double inputSampleR;
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.
}
if (inputGain != 1.0) {
inputSampleL *= inputGain;
inputSampleR *= inputGain;
}
overshootL = fabs(inputSampleL) - refclipL;
overshootR = fabs(inputSampleR) - refclipR;
if (overshootL < 0.0) overshootL = 0.0;
if (overshootR < 0.0) overshootR = 0.0;
if (gcount < 0 || gcount > 11020) {gcount = 11020;}
count = gcount;
bL[count+11020] = bL[count] = overshootL;
bR[count+11020] = bR[count] = overshootR;
gcount--;
if (highslift > 0.0)
{
//we have a big pile of b[] which is overshoots
temp = count+refH3;
highsL = -(bL[temp] * minusH3); //less as value moves away from .0
highsL -= bL[temp+1]; //we can assume always using this in one way or another?
highsL -= (bL[temp+2] * fractionH3); //greater as value moves away from .0
highsL += (((bL[temp]-bL[temp+1])-(bL[temp+1]-bL[temp+2]))/50); //interpolation hacks 'r us
highsL *= adjust; //add in the kernel elements backwards saves multiplies
//stage 3 is a negative add
highsR = -(bR[temp] * minusH3); //less as value moves away from .0
highsR -= bR[temp+1]; //we can assume always using this in one way or another?
highsR -= (bR[temp+2] * fractionH3); //greater as value moves away from .0
highsR += (((bR[temp]-bR[temp+1])-(bR[temp+1]-bR[temp+2]))/50); //interpolation hacks 'r us
highsR *= adjust; //add in the kernel elements backwards saves multiplies
//stage 3 is a negative add
temp = count+refH2;
highsL += (bL[temp] * minusH2); //less as value moves away from .0
highsL += bL[temp+1]; //we can assume always using this in one way or another?
highsL += (bL[temp+2] * fractionH2); //greater as value moves away from .0
highsL -= (((bL[temp]-bL[temp+1])-(bL[temp+1]-bL[temp+2]))/50); //interpolation hacks 'r us
highsL *= adjust; //add in the kernel elements backwards saves multiplies
//stage 2 is a positive feedback of the overshoot
highsR += (bR[temp] * minusH2); //less as value moves away from .0
highsR += bR[temp+1]; //we can assume always using this in one way or another?
highsR += (bR[temp+2] * fractionH2); //greater as value moves away from .0
highsR -= (((bR[temp]-bR[temp+1])-(bR[temp+1]-bR[temp+2]))/50); //interpolation hacks 'r us
highsR *= adjust; //add in the kernel elements backwards saves multiplies
//stage 2 is a positive feedback of the overshoot
temp = count+refH1;
highsL -= (bL[temp] * minusH1); //less as value moves away from .0
highsL -= bL[temp+1]; //we can assume always using this in one way or another?
highsL -= (bL[temp+2] * fractionH1); //greater as value moves away from .0
highsL += (((bL[temp]-bL[temp+1])-(bL[temp+1]-bL[temp+2]))/50); //interpolation hacks 'r us
highsL *= adjust; //add in the kernel elements backwards saves multiplies
//stage 1 is a negative feedback of the overshoot
highsR -= (bR[temp] * minusH1); //less as value moves away from .0
highsR -= bR[temp+1]; //we can assume always using this in one way or another?
highsR -= (bR[temp+2] * fractionH1); //greater as value moves away from .0
highsR += (((bR[temp]-bR[temp+1])-(bR[temp+1]-bR[temp+2]))/50); //interpolation hacks 'r us
highsR *= adjust; //add in the kernel elements backwards saves multiplies
//stage 1 is a negative feedback of the overshoot
//done with interpolated mostly negative feedback of the overshoot
}
bridgerectifier = sin(fabs(highsL) * hardness);
//this will wrap around and is scaled back by softness
//wrap around is the same principle as Fracture: no top limit to sin()
if (highsL > 0) highsL = bridgerectifier;
else highsL = -bridgerectifier;
bridgerectifier = sin(fabs(highsR) * hardness);
//this will wrap around and is scaled back by softness
//wrap around is the same principle as Fracture: no top limit to sin()
if (highsR > 0) highsR = bridgerectifier;
else highsR = -bridgerectifier;
if (subslift > 0.0)
{
lowsL *= subs;
lowsR *= subs;
//going in we'll reel back some of the swing
temp = count+refL1;
lowsL -= bL[temp+127];
lowsL -= bL[temp+113];
lowsL -= bL[temp+109];
lowsL -= bL[temp+107];
lowsL -= bL[temp+103];
lowsL -= bL[temp+101];
lowsL -= bL[temp+97];
lowsL -= bL[temp+89];
lowsL -= bL[temp+83];
lowsL -= bL[temp+79];
lowsL -= bL[temp+73];
lowsL -= bL[temp+71];
lowsL -= bL[temp+67];
lowsL -= bL[temp+61];
lowsL -= bL[temp+59];
lowsL -= bL[temp+53];
lowsL -= bL[temp+47];
lowsL -= bL[temp+43];
lowsL -= bL[temp+41];
lowsL -= bL[temp+37];
lowsL -= bL[temp+31];
lowsL -= bL[temp+29];
lowsL -= bL[temp+23];
lowsL -= bL[temp+19];
lowsL -= bL[temp+17];
lowsL -= bL[temp+13];
lowsL -= bL[temp+11];
lowsL -= bL[temp+7];
lowsL -= bL[temp+5];
lowsL -= bL[temp+3];
lowsL -= bL[temp+2];
lowsL -= bL[temp+1];
//initial negative lobe
lowsR -= bR[temp+127];
lowsR -= bR[temp+113];
lowsR -= bR[temp+109];
lowsR -= bR[temp+107];
lowsR -= bR[temp+103];
lowsR -= bR[temp+101];
lowsR -= bR[temp+97];
lowsR -= bR[temp+89];
lowsR -= bR[temp+83];
lowsR -= bR[temp+79];
lowsR -= bR[temp+73];
lowsR -= bR[temp+71];
lowsR -= bR[temp+67];
lowsR -= bR[temp+61];
lowsR -= bR[temp+59];
lowsR -= bR[temp+53];
lowsR -= bR[temp+47];
lowsR -= bR[temp+43];
lowsR -= bR[temp+41];
lowsR -= bR[temp+37];
lowsR -= bR[temp+31];
lowsR -= bR[temp+29];
lowsR -= bR[temp+23];
lowsR -= bR[temp+19];
lowsR -= bR[temp+17];
lowsR -= bR[temp+13];
lowsR -= bR[temp+11];
lowsR -= bR[temp+7];
lowsR -= bR[temp+5];
lowsR -= bR[temp+3];
lowsR -= bR[temp+2];
lowsR -= bR[temp+1];
//initial negative lobe
lowsL *= subs;
lowsL *= subs;
lowsR *= subs;
lowsR *= subs;
//twice, to minimize the suckout in low boost situations
temp = count+refL2;
lowsL += bL[temp+127];
lowsL += bL[temp+113];
lowsL += bL[temp+109];
lowsL += bL[temp+107];
lowsL += bL[temp+103];
lowsL += bL[temp+101];
lowsL += bL[temp+97];
lowsL += bL[temp+89];
lowsL += bL[temp+83];
lowsL += bL[temp+79];
lowsL += bL[temp+73];
lowsL += bL[temp+71];
lowsL += bL[temp+67];
lowsL += bL[temp+61];
lowsL += bL[temp+59];
lowsL += bL[temp+53];
lowsL += bL[temp+47];
lowsL += bL[temp+43];
lowsL += bL[temp+41];
lowsL += bL[temp+37];
lowsL += bL[temp+31];
lowsL += bL[temp+29];
lowsL += bL[temp+23];
lowsL += bL[temp+19];
lowsL += bL[temp+17];
lowsL += bL[temp+13];
lowsL += bL[temp+11];
lowsL += bL[temp+7];
lowsL += bL[temp+5];
lowsL += bL[temp+3];
lowsL += bL[temp+2];
lowsL += bL[temp+1];
//followup positive lobe
lowsR += bR[temp+127];
lowsR += bR[temp+113];
lowsR += bR[temp+109];
lowsR += bR[temp+107];
lowsR += bR[temp+103];
lowsR += bR[temp+101];
lowsR += bR[temp+97];
lowsR += bR[temp+89];
lowsR += bR[temp+83];
lowsR += bR[temp+79];
lowsR += bR[temp+73];
lowsR += bR[temp+71];
lowsR += bR[temp+67];
lowsR += bR[temp+61];
lowsR += bR[temp+59];
lowsR += bR[temp+53];
lowsR += bR[temp+47];
lowsR += bR[temp+43];
lowsR += bR[temp+41];
lowsR += bR[temp+37];
lowsR += bR[temp+31];
lowsR += bR[temp+29];
lowsR += bR[temp+23];
lowsR += bR[temp+19];
lowsR += bR[temp+17];
lowsR += bR[temp+13];
lowsR += bR[temp+11];
lowsR += bR[temp+7];
lowsR += bR[temp+5];
lowsR += bR[temp+3];
lowsR += bR[temp+2];
lowsR += bR[temp+1];
//followup positive lobe
lowsL *= subs;
lowsR *= subs;
//now we have the lows content to use
}
bridgerectifier = sin(fabs(lowsL) * softness);
//this will wrap around and is scaled back by hardness: hard = less bass push, more treble
//wrap around is the same principle as Fracture: no top limit to sin()
if (lowsL > 0) lowsL = bridgerectifier;
else lowsL = -bridgerectifier;
bridgerectifier = sin(fabs(lowsR) * softness);
//this will wrap around and is scaled back by hardness: hard = less bass push, more treble
//wrap around is the same principle as Fracture: no top limit to sin()
if (lowsR > 0) lowsR = bridgerectifier;
else lowsR = -bridgerectifier;
iirLowsAL = (iirLowsAL * invcalibsubs) + (lowsL * calibsubs);
lowsL = iirLowsAL;
bridgerectifier = sin(fabs(lowsL));
if (lowsL > 0) lowsL = bridgerectifier;
else lowsL = -bridgerectifier;
iirLowsAR = (iirLowsAR * invcalibsubs) + (lowsR * calibsubs);
lowsR = iirLowsAR;
bridgerectifier = sin(fabs(lowsR));
if (lowsR > 0) lowsR = bridgerectifier;
else lowsR = -bridgerectifier;
iirLowsBL = (iirLowsBL * invcalibsubs) + (lowsL * calibsubs);
lowsL = iirLowsBL;
bridgerectifier = sin(fabs(lowsL)) * 2.0;
if (lowsL > 0) lowsL = bridgerectifier;
else lowsL = -bridgerectifier;
iirLowsBR = (iirLowsBR * invcalibsubs) + (lowsR * calibsubs);
lowsR = iirLowsBR;
bridgerectifier = sin(fabs(lowsR)) * 2.0;
if (lowsR > 0) lowsR = bridgerectifier;
else lowsR = -bridgerectifier;
if (highslift > 0.0) inputSampleL += (highsL * (1.0-fabs(inputSampleL*hardness)));
if (subslift > 0.0) inputSampleL += (lowsL * (1.0-fabs(inputSampleL*softness)));
if (highslift > 0.0) inputSampleR += (highsR * (1.0-fabs(inputSampleR*hardness)));
if (subslift > 0.0) inputSampleR += (lowsR * (1.0-fabs(inputSampleR*softness)));
if (inputSampleL > refclipL && refclipL > 0.9) refclipL -= 0.01;
if (inputSampleL < -refclipL && refclipL > 0.9) refclipL -= 0.01;
if (refclipL < 0.99) refclipL += 0.00001;
//adjust clip level on the fly
if (inputSampleR > refclipR && refclipR > 0.9) refclipR -= 0.01;
if (inputSampleR < -refclipR && refclipR > 0.9) refclipR -= 0.01;
if (refclipR < 0.99) refclipR += 0.00001;
//adjust clip level on the fly
if (lastSampleL >= refclipL)
{
if (inputSampleL < refclipL) lastSampleL = ((refclipL*hardness) + (inputSampleL * softness));
else lastSampleL = refclipL;
}
if (lastSampleR >= refclipR)
{
if (inputSampleR < refclipR) lastSampleR = ((refclipR*hardness) + (inputSampleR * softness));
else lastSampleR = refclipR;
}
if (lastSampleL <= -refclipL)
{
if (inputSampleL > -refclipL) lastSampleL = ((-refclipL*hardness) + (inputSampleL * softness));
else lastSampleL = -refclipL;
}
if (lastSampleR <= -refclipR)
{
if (inputSampleR > -refclipR) lastSampleR = ((-refclipR*hardness) + (inputSampleR * softness));
else lastSampleR = -refclipR;
}
if (inputSampleL > refclipL)
{
if (lastSampleL < refclipL) inputSampleL = ((refclipL*hardness) + (lastSampleL * softness));
else inputSampleL = refclipL;
}
if (inputSampleR > refclipR)
{
if (lastSampleR < refclipR) inputSampleR = ((refclipR*hardness) + (lastSampleR * softness));
else inputSampleR = refclipR;
}
if (inputSampleL < -refclipL)
{
if (lastSampleL > -refclipL) inputSampleL = ((-refclipL*hardness) + (lastSampleL * softness));
else inputSampleL = -refclipL;
}
if (inputSampleR < -refclipR)
{
if (lastSampleR > -refclipR) inputSampleR = ((-refclipR*hardness) + (lastSampleR * softness));
else inputSampleR = -refclipR;
}
lastSampleL = inputSampleL;
lastSampleR = inputSampleR;
switch (mode)
{
case 1: break; //Normal
case 2: inputSampleL /= inputGain; inputSampleR /= inputGain; break; //Gain Match
case 3: inputSampleL = overshootL + highsL + lowsL; inputSampleR = overshootR + highsR + lowsR; break; //Clip Only
}
//this is our output mode switch, showing the effects
if (inputSampleL > refclipL) inputSampleL = refclipL;
if (inputSampleL < -refclipL) inputSampleL = -refclipL;
if (inputSampleR > refclipR) inputSampleR = refclipR;
if (inputSampleR < -refclipR) inputSampleR = -refclipR;
//final iron bar
//stereo 64 bit dither, made small and tidy.
int expon; frexp((double)inputSampleL, &expon);
long double dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62);
dither /= 536870912.0; //needs this to scale to 64 bit zone
inputSampleL += (dither-fpNShapeL); fpNShapeL = dither;
frexp((double)inputSampleR, &expon);
dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62);
dither /= 536870912.0; //needs this to scale to 64 bit zone
inputSampleR += (dither-fpNShapeR); fpNShapeR = dither;
//end 64 bit dither
*out1 = inputSampleL;
*out2 = inputSampleR;
*in1++;
*in2++;
*out1++;
*out2++;
}
}