/* ========================================
* Aura - Aura.h
* Copyright (c) 2016 airwindows, All rights reserved
* ======================================== */
#ifndef __Aura_H
#include "Aura.h"
#endif
void Aura::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames)
{
float* in1 = inputs[0];
float* in2 = inputs[1];
float* out1 = outputs[0];
float* out2 = outputs[1];
double correctionL;
double correctionR;
double accumulatorSampleL;
double accumulatorSampleR;
double velocityL;
double velocityR;
double trim = A;
double wet = B;
double dry = 1.0 - wet;
double overallscale = trim * 10.0;
double gain = overallscale + (pow(wet,3) * 0.187859642462067);
trim *= (1.0 - (pow(wet,3) * 0.187859642462067));
long double inputSampleL;
long double inputSampleR;
double drySampleL;
double drySampleR;
if (gain < 1.0) gain = 1.0;
if (gain > 1.0) {f[0] = 1.0; gain -= 1.0;} else {f[0] = gain; gain = 0.0;}
if (gain > 1.0) {f[1] = 1.0; gain -= 1.0;} else {f[1] = gain; gain = 0.0;}
if (gain > 1.0) {f[2] = 1.0; gain -= 1.0;} else {f[2] = gain; gain = 0.0;}
if (gain > 1.0) {f[3] = 1.0; gain -= 1.0;} else {f[3] = gain; gain = 0.0;}
if (gain > 1.0) {f[4] = 1.0; gain -= 1.0;} else {f[4] = gain; gain = 0.0;}
if (gain > 1.0) {f[5] = 1.0; gain -= 1.0;} else {f[5] = gain; gain = 0.0;}
if (gain > 1.0) {f[6] = 1.0; gain -= 1.0;} else {f[6] = gain; gain = 0.0;}
if (gain > 1.0) {f[7] = 1.0; gain -= 1.0;} else {f[7] = gain; gain = 0.0;}
if (gain > 1.0) {f[8] = 1.0; gain -= 1.0;} else {f[8] = gain; gain = 0.0;}
if (gain > 1.0) {f[9] = 1.0; gain -= 1.0;} else {f[9] = gain; gain = 0.0;}
if (gain > 1.0) {f[10] = 1.0; gain -= 1.0;} else {f[10] = gain; gain = 0.0;}
if (gain > 1.0) {f[11] = 1.0; gain -= 1.0;} else {f[11] = gain; gain = 0.0;}
if (gain > 1.0) {f[12] = 1.0; gain -= 1.0;} else {f[12] = gain; gain = 0.0;}
if (gain > 1.0) {f[13] = 1.0; gain -= 1.0;} else {f[13] = gain; gain = 0.0;}
if (gain > 1.0) {f[14] = 1.0; gain -= 1.0;} else {f[14] = gain; gain = 0.0;}
if (gain > 1.0) {f[15] = 1.0; gain -= 1.0;} else {f[15] = gain; gain = 0.0;}
if (gain > 1.0) {f[16] = 1.0; gain -= 1.0;} else {f[16] = gain; gain = 0.0;}
if (gain > 1.0) {f[17] = 1.0; gain -= 1.0;} else {f[17] = gain; gain = 0.0;}
if (gain > 1.0) {f[18] = 1.0; gain -= 1.0;} else {f[18] = gain; gain = 0.0;}
if (gain > 1.0) {f[19] = 1.0; gain -= 1.0;} else {f[19] = gain; gain = 0.0;}
//there, now we have a neat little moving average with remainders
if (overallscale < 1.0) overallscale = 1.0;
f[0] /= overallscale;
f[1] /= overallscale;
f[2] /= overallscale;
f[3] /= overallscale;
f[4] /= overallscale;
f[5] /= overallscale;
f[6] /= overallscale;
f[7] /= overallscale;
f[8] /= overallscale;
f[9] /= overallscale;
f[10] /= overallscale;
f[11] /= overallscale;
f[12] /= overallscale;
f[13] /= overallscale;
f[14] /= overallscale;
f[15] /= overallscale;
f[16] /= overallscale;
f[17] /= overallscale;
f[18] /= overallscale;
f[19] /= overallscale;
//and now it's neatly scaled, too
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;
velocityL = lastSampleL - inputSampleL;
correctionL = previousVelocityL - velocityL;
bL[19] = bL[18]; bL[18] = bL[17]; bL[17] = bL[16]; bL[16] = bL[15];
bL[15] = bL[14]; bL[14] = bL[13]; bL[13] = bL[12]; bL[12] = bL[11];
bL[11] = bL[10]; bL[10] = bL[9];
bL[9] = bL[8]; bL[8] = bL[7]; bL[7] = bL[6]; bL[6] = bL[5];
bL[5] = bL[4]; bL[4] = bL[3]; bL[3] = bL[2]; bL[2] = bL[1];
bL[1] = bL[0]; bL[0] = accumulatorSampleL = correctionL;
//we are accumulating rates of change of the rate of change
accumulatorSampleL *= f[0];
accumulatorSampleL += (bL[1] * f[1]);
accumulatorSampleL += (bL[2] * f[2]);
accumulatorSampleL += (bL[3] * f[3]);
accumulatorSampleL += (bL[4] * f[4]);
accumulatorSampleL += (bL[5] * f[5]);
accumulatorSampleL += (bL[6] * f[6]);
accumulatorSampleL += (bL[7] * f[7]);
accumulatorSampleL += (bL[8] * f[8]);
accumulatorSampleL += (bL[9] * f[9]);
accumulatorSampleL += (bL[10] * f[10]);
accumulatorSampleL += (bL[11] * f[11]);
accumulatorSampleL += (bL[12] * f[12]);
accumulatorSampleL += (bL[13] * f[13]);
accumulatorSampleL += (bL[14] * f[14]);
accumulatorSampleL += (bL[15] * f[15]);
accumulatorSampleL += (bL[16] * f[16]);
accumulatorSampleL += (bL[17] * f[17]);
accumulatorSampleL += (bL[18] * f[18]);
accumulatorSampleL += (bL[19] * f[19]);
velocityL = previousVelocityL + accumulatorSampleL;
inputSampleL = lastSampleL + velocityL;
lastSampleL = inputSampleL;
previousVelocityL = -velocityL * pow(trim,2);
//left channel done
velocityR = lastSampleR - inputSampleR;
correctionR = previousVelocityR - velocityR;
bR[19] = bR[18]; bR[18] = bR[17]; bR[17] = bR[16]; bR[16] = bR[15];
bR[15] = bR[14]; bR[14] = bR[13]; bR[13] = bR[12]; bR[12] = bR[11];
bR[11] = bR[10]; bR[10] = bR[9];
bR[9] = bR[8]; bR[8] = bR[7]; bR[7] = bR[6]; bR[6] = bR[5];
bR[5] = bR[4]; bR[4] = bR[3]; bR[3] = bR[2]; bR[2] = bR[1];
bR[1] = bR[0]; bR[0] = accumulatorSampleR = correctionR;
//we are accumulating rates of change of the rate of change
accumulatorSampleR *= f[0];
accumulatorSampleR += (bR[1] * f[1]);
accumulatorSampleR += (bR[2] * f[2]);
accumulatorSampleR += (bR[3] * f[3]);
accumulatorSampleR += (bR[4] * f[4]);
accumulatorSampleR += (bR[5] * f[5]);
accumulatorSampleR += (bR[6] * f[6]);
accumulatorSampleR += (bR[7] * f[7]);
accumulatorSampleR += (bR[8] * f[8]);
accumulatorSampleR += (bR[9] * f[9]);
accumulatorSampleR += (bR[10] * f[10]);
accumulatorSampleR += (bR[11] * f[11]);
accumulatorSampleR += (bR[12] * f[12]);
accumulatorSampleR += (bR[13] * f[13]);
accumulatorSampleR += (bR[14] * f[14]);
accumulatorSampleR += (bR[15] * f[15]);
accumulatorSampleR += (bR[16] * f[16]);
accumulatorSampleR += (bR[17] * f[17]);
accumulatorSampleR += (bR[18] * f[18]);
accumulatorSampleR += (bR[19] * f[19]);
//we are doing our repetitive calculations on a separate value
velocityR = previousVelocityR + accumulatorSampleR;
inputSampleR = lastSampleR + velocityR;
lastSampleR = inputSampleR;
previousVelocityR = -velocityR * pow(trim,2);
//right channel done
if (wet !=1.0) {
inputSampleL = (inputSampleL * wet) + (drySampleL * dry);
inputSampleR = (inputSampleR * wet) + (drySampleR * dry);
}
//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 Aura::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames)
{
double* in1 = inputs[0];
double* in2 = inputs[1];
double* out1 = outputs[0];
double* out2 = outputs[1];
double correctionL;
double correctionR;
double accumulatorSampleL;
double accumulatorSampleR;
double velocityL;
double velocityR;
double trim = A;
double wet = B;
double dry = 1.0 - wet;
double overallscale = trim * 10.0;
double gain = overallscale + (pow(wet,3) * 0.187859642462067);
trim *= (1.0 - (pow(wet,3) * 0.187859642462067));
long double inputSampleL;
long double inputSampleR;
double drySampleL;
double drySampleR;
if (gain < 1.0) gain = 1.0;
if (gain > 1.0) {f[0] = 1.0; gain -= 1.0;} else {f[0] = gain; gain = 0.0;}
if (gain > 1.0) {f[1] = 1.0; gain -= 1.0;} else {f[1] = gain; gain = 0.0;}
if (gain > 1.0) {f[2] = 1.0; gain -= 1.0;} else {f[2] = gain; gain = 0.0;}
if (gain > 1.0) {f[3] = 1.0; gain -= 1.0;} else {f[3] = gain; gain = 0.0;}
if (gain > 1.0) {f[4] = 1.0; gain -= 1.0;} else {f[4] = gain; gain = 0.0;}
if (gain > 1.0) {f[5] = 1.0; gain -= 1.0;} else {f[5] = gain; gain = 0.0;}
if (gain > 1.0) {f[6] = 1.0; gain -= 1.0;} else {f[6] = gain; gain = 0.0;}
if (gain > 1.0) {f[7] = 1.0; gain -= 1.0;} else {f[7] = gain; gain = 0.0;}
if (gain > 1.0) {f[8] = 1.0; gain -= 1.0;} else {f[8] = gain; gain = 0.0;}
if (gain > 1.0) {f[9] = 1.0; gain -= 1.0;} else {f[9] = gain; gain = 0.0;}
if (gain > 1.0) {f[10] = 1.0; gain -= 1.0;} else {f[10] = gain; gain = 0.0;}
if (gain > 1.0) {f[11] = 1.0; gain -= 1.0;} else {f[11] = gain; gain = 0.0;}
if (gain > 1.0) {f[12] = 1.0; gain -= 1.0;} else {f[12] = gain; gain = 0.0;}
if (gain > 1.0) {f[13] = 1.0; gain -= 1.0;} else {f[13] = gain; gain = 0.0;}
if (gain > 1.0) {f[14] = 1.0; gain -= 1.0;} else {f[14] = gain; gain = 0.0;}
if (gain > 1.0) {f[15] = 1.0; gain -= 1.0;} else {f[15] = gain; gain = 0.0;}
if (gain > 1.0) {f[16] = 1.0; gain -= 1.0;} else {f[16] = gain; gain = 0.0;}
if (gain > 1.0) {f[17] = 1.0; gain -= 1.0;} else {f[17] = gain; gain = 0.0;}
if (gain > 1.0) {f[18] = 1.0; gain -= 1.0;} else {f[18] = gain; gain = 0.0;}
if (gain > 1.0) {f[19] = 1.0; gain -= 1.0;} else {f[19] = gain; gain = 0.0;}
//there, now we have a neat little moving average with remainders
if (overallscale < 1.0) overallscale = 1.0;
f[0] /= overallscale;
f[1] /= overallscale;
f[2] /= overallscale;
f[3] /= overallscale;
f[4] /= overallscale;
f[5] /= overallscale;
f[6] /= overallscale;
f[7] /= overallscale;
f[8] /= overallscale;
f[9] /= overallscale;
f[10] /= overallscale;
f[11] /= overallscale;
f[12] /= overallscale;
f[13] /= overallscale;
f[14] /= overallscale;
f[15] /= overallscale;
f[16] /= overallscale;
f[17] /= overallscale;
f[18] /= overallscale;
f[19] /= overallscale;
//and now it's neatly scaled, too
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;
velocityL = lastSampleL - inputSampleL;
correctionL = previousVelocityL - velocityL;
bL[19] = bL[18]; bL[18] = bL[17]; bL[17] = bL[16]; bL[16] = bL[15];
bL[15] = bL[14]; bL[14] = bL[13]; bL[13] = bL[12]; bL[12] = bL[11];
bL[11] = bL[10]; bL[10] = bL[9];
bL[9] = bL[8]; bL[8] = bL[7]; bL[7] = bL[6]; bL[6] = bL[5];
bL[5] = bL[4]; bL[4] = bL[3]; bL[3] = bL[2]; bL[2] = bL[1];
bL[1] = bL[0]; bL[0] = accumulatorSampleL = correctionL;
//we are accumulating rates of change of the rate of change
accumulatorSampleL *= f[0];
accumulatorSampleL += (bL[1] * f[1]);
accumulatorSampleL += (bL[2] * f[2]);
accumulatorSampleL += (bL[3] * f[3]);
accumulatorSampleL += (bL[4] * f[4]);
accumulatorSampleL += (bL[5] * f[5]);
accumulatorSampleL += (bL[6] * f[6]);
accumulatorSampleL += (bL[7] * f[7]);
accumulatorSampleL += (bL[8] * f[8]);
accumulatorSampleL += (bL[9] * f[9]);
accumulatorSampleL += (bL[10] * f[10]);
accumulatorSampleL += (bL[11] * f[11]);
accumulatorSampleL += (bL[12] * f[12]);
accumulatorSampleL += (bL[13] * f[13]);
accumulatorSampleL += (bL[14] * f[14]);
accumulatorSampleL += (bL[15] * f[15]);
accumulatorSampleL += (bL[16] * f[16]);
accumulatorSampleL += (bL[17] * f[17]);
accumulatorSampleL += (bL[18] * f[18]);
accumulatorSampleL += (bL[19] * f[19]);
velocityL = previousVelocityL + accumulatorSampleL;
inputSampleL = lastSampleL + velocityL;
lastSampleL = inputSampleL;
previousVelocityL = -velocityL * pow(trim,2);
//left channel done
velocityR = lastSampleR - inputSampleR;
correctionR = previousVelocityR - velocityR;
bR[19] = bR[18]; bR[18] = bR[17]; bR[17] = bR[16]; bR[16] = bR[15];
bR[15] = bR[14]; bR[14] = bR[13]; bR[13] = bR[12]; bR[12] = bR[11];
bR[11] = bR[10]; bR[10] = bR[9];
bR[9] = bR[8]; bR[8] = bR[7]; bR[7] = bR[6]; bR[6] = bR[5];
bR[5] = bR[4]; bR[4] = bR[3]; bR[3] = bR[2]; bR[2] = bR[1];
bR[1] = bR[0]; bR[0] = accumulatorSampleR = correctionR;
//we are accumulating rates of change of the rate of change
accumulatorSampleR *= f[0];
accumulatorSampleR += (bR[1] * f[1]);
accumulatorSampleR += (bR[2] * f[2]);
accumulatorSampleR += (bR[3] * f[3]);
accumulatorSampleR += (bR[4] * f[4]);
accumulatorSampleR += (bR[5] * f[5]);
accumulatorSampleR += (bR[6] * f[6]);
accumulatorSampleR += (bR[7] * f[7]);
accumulatorSampleR += (bR[8] * f[8]);
accumulatorSampleR += (bR[9] * f[9]);
accumulatorSampleR += (bR[10] * f[10]);
accumulatorSampleR += (bR[11] * f[11]);
accumulatorSampleR += (bR[12] * f[12]);
accumulatorSampleR += (bR[13] * f[13]);
accumulatorSampleR += (bR[14] * f[14]);
accumulatorSampleR += (bR[15] * f[15]);
accumulatorSampleR += (bR[16] * f[16]);
accumulatorSampleR += (bR[17] * f[17]);
accumulatorSampleR += (bR[18] * f[18]);
accumulatorSampleR += (bR[19] * f[19]);
//we are doing our repetitive calculations on a separate value
velocityR = previousVelocityR + accumulatorSampleR;
inputSampleR = lastSampleR + velocityR;
lastSampleR = inputSampleR;
previousVelocityR = -velocityR * pow(trim,2);
//right channel done
if (wet !=1.0) {
inputSampleL = (inputSampleL * wet) + (drySampleL * dry);
inputSampleR = (inputSampleR * wet) + (drySampleR * dry);
}
//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++;
}
}
