/*
* File: BlockParty.cpp
*
* Version: 1.0
*
* Created: 2/16/19
*
* Copyright: Copyright � 2019 Airwindows, All Rights Reserved
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/*=============================================================================
BlockParty.cpp
=============================================================================*/
#include "BlockParty.h"
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
COMPONENT_ENTRY(BlockParty)
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// BlockParty::BlockParty
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
BlockParty::BlockParty(AudioUnit component)
: AUEffectBase(component)
{
CreateElements();
Globals()->UseIndexedParameters(kNumberOfParameters);
SetParameter(kParam_One, kDefaultValue_ParamOne );
SetParameter(kParam_Two, kDefaultValue_ParamTwo );
#if AU_DEBUG_DISPATCHER
mDebugDispatcher = new AUDebugDispatcher (this);
#endif
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// BlockParty::GetParameterValueStrings
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult BlockParty::GetParameterValueStrings(AudioUnitScope inScope,
AudioUnitParameterID inParameterID,
CFArrayRef * outStrings)
{
return kAudioUnitErr_InvalidProperty;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// BlockParty::GetParameterInfo
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult BlockParty::GetParameterInfo(AudioUnitScope inScope,
AudioUnitParameterID inParameterID,
AudioUnitParameterInfo &outParameterInfo )
{
ComponentResult result = noErr;
outParameterInfo.flags = kAudioUnitParameterFlag_IsWritable
| kAudioUnitParameterFlag_IsReadable;
if (inScope == kAudioUnitScope_Global) {
switch(inParameterID)
{
case kParam_One:
AUBase::FillInParameterName (outParameterInfo, kParameterOneName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamOne;
break;
case kParam_Two:
AUBase::FillInParameterName (outParameterInfo, kParameterTwoName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamTwo;
break;
default:
result = kAudioUnitErr_InvalidParameter;
break;
}
} else {
result = kAudioUnitErr_InvalidParameter;
}
return result;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// BlockParty::GetPropertyInfo
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult BlockParty::GetPropertyInfo (AudioUnitPropertyID inID,
AudioUnitScope inScope,
AudioUnitElement inElement,
UInt32 & outDataSize,
Boolean & outWritable)
{
return AUEffectBase::GetPropertyInfo (inID, inScope, inElement, outDataSize, outWritable);
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// BlockParty::GetProperty
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult BlockParty::GetProperty( AudioUnitPropertyID inID,
AudioUnitScope inScope,
AudioUnitElement inElement,
void * outData )
{
return AUEffectBase::GetProperty (inID, inScope, inElement, outData);
}
// BlockParty::Initialize
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult BlockParty::Initialize()
{
ComponentResult result = AUEffectBase::Initialize();
if (result == noErr)
Reset(kAudioUnitScope_Global, 0);
return result;
}
#pragma mark ____BlockPartyEffectKernel
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// BlockParty::BlockPartyKernel::Reset()
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void BlockParty::BlockPartyKernel::Reset()
{
muSpeedA = 10000;
muSpeedB = 10000;
muSpeedC = 10000;
muSpeedD = 10000;
muSpeedE = 10000;
muCoefficientA = 1;
muCoefficientB = 1;
muCoefficientC = 1;
muCoefficientD = 1;
muCoefficientE = 1;
lastCoefficientA = 1;
lastCoefficientB = 1;
lastCoefficientC = 1;
lastCoefficientD = 1;
mergedCoefficients = 1;
threshold = 1.0;
thresholdB = 1.0;
muVary = 1;
count = 1;
fpFlip = true;
fpd = 17;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// BlockParty::BlockPartyKernel::Process
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void BlockParty::BlockPartyKernel::Process( const Float32 *inSourceP,
Float32 *inDestP,
UInt32 inFramesToProcess,
UInt32 inNumChannels,
bool &ioSilence )
{
UInt32 nSampleFrames = inFramesToProcess;
const Float32 *sourceP = inSourceP;
Float32 *destP = inDestP;
long double overallscale = 1.0;
overallscale /= 44100.0;
overallscale *= GetSampleRate();
Float64 targetthreshold = 1.01 - (1.0-pow(1.0-(GetParameter( kParam_One )*0.5),4));
Float64 wet = GetParameter( kParam_Two );
Float64 voicing = 0.618033988749894848204586;
if (overallscale > 0.0) voicing /= overallscale;
//translate to desired sample rate, 44.1K is the base
if (voicing < 0.0) voicing = 0.0;
if (voicing > 1.0) voicing = 1.0;
//some insanity checking
while (nSampleFrames-- > 0) {
long double inputSample = *sourceP;
static int noisesource = 0;
int residue;
double applyresidue;
noisesource = noisesource % 1700021; noisesource++;
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;
applyresidue = residue;
applyresidue *= 0.00000001;
applyresidue *= 0.00000001;
inputSample += applyresidue;
if (inputSample<1.2e-38 && -inputSample<1.2e-38) {
inputSample -= applyresidue;
}
//for live air, we always apply the dither noise. Then, if our result is
//effectively digital black, we'll subtract it again. We want a 'air' hiss
long double drySample = inputSample;
Float64 muMakeupGain = 1.0 / threshold;
Float64 outMakeupGain = sqrt(muMakeupGain);
muMakeupGain += outMakeupGain;
muMakeupGain *= 0.5;
//gain settings around threshold
Float64 release = mergedCoefficients * 32768.0;
release /= overallscale;
Float64 fastest = sqrt(release);
//speed settings around release
Float64 lastCorrection = mergedCoefficients;
// � � � � � � � � � � � � is the kitten song o/~
if (muMakeupGain != 1.0) inputSample = inputSample * muMakeupGain;
if (count < 1 || count > 3) count = 1;
switch (count)
{
case 1:
if (fabs(inputSample) > threshold)
{
if (inputSample > 0.0) {
inputSample = (inputSample * voicing) + (targetthreshold * (1.0-voicing));
threshold = fabs(inputSample);
} else {
inputSample = (inputSample * voicing) - (targetthreshold * (1.0-voicing));
threshold = fabs(inputSample);
}
muVary = targetthreshold / fabs(inputSample);
muAttack = sqrt(fabs(muSpeedA));
muCoefficientA = muCoefficientA * (muAttack-1.0);
if (muVary < threshold)
{
muCoefficientA = muCoefficientA + targetthreshold;
}
else
{
muCoefficientA = muCoefficientA + muVary;
}
muCoefficientA = muCoefficientA / muAttack;
}
else
{
threshold = targetthreshold;
muCoefficientA = muCoefficientA * ((muSpeedA * muSpeedA)-1.0);
muCoefficientA = muCoefficientA + 1.0;
muCoefficientA = muCoefficientA / (muSpeedA * muSpeedA);
}
muNewSpeed = muSpeedA * (muSpeedA-1);
muNewSpeed = muNewSpeed + fabs(inputSample*release)+fastest;
muSpeedA = muNewSpeed / muSpeedA;
lastCoefficientA = pow(muCoefficientA,2);
mergedCoefficients = lastCoefficientB;
mergedCoefficients += lastCoefficientA;
lastCoefficientA *= (1.0-lastCorrection);
lastCoefficientA += (muCoefficientA * lastCorrection);
lastCoefficientB = lastCoefficientA;
break;
case 2:
if (fabs(inputSample) > threshold)
{
if (inputSample > 0.0) {
inputSample = (inputSample * voicing) + (targetthreshold * (1.0-voicing));
threshold = fabs(inputSample);
} else {
inputSample = (inputSample * voicing) - (targetthreshold * (1.0-voicing));
threshold = fabs(inputSample);
}
muVary = targetthreshold / fabs(inputSample);
muAttack = sqrt(fabs(muSpeedB));
muCoefficientB = muCoefficientB * (muAttack-1);
if (muVary < threshold)
{
muCoefficientB = muCoefficientB + targetthreshold;
}
else
{
muCoefficientB = muCoefficientB + muVary;
}
muCoefficientB = muCoefficientB / muAttack;
}
else
{
threshold = targetthreshold;
muCoefficientB = muCoefficientB * ((muSpeedB * muSpeedB)-1.0);
muCoefficientB = muCoefficientB + 1.0;
muCoefficientB = muCoefficientB / (muSpeedB * muSpeedB);
}
muNewSpeed = muSpeedB * (muSpeedB-1);
muNewSpeed = muNewSpeed + fabs(inputSample*release)+fastest;
muSpeedB = muNewSpeed / muSpeedB;
lastCoefficientA = pow(muCoefficientB,2);
mergedCoefficients = lastCoefficientB;
mergedCoefficients += lastCoefficientA;
lastCoefficientA *= (1.0-lastCorrection);
lastCoefficientA += (muCoefficientB * lastCorrection);
lastCoefficientB = lastCoefficientA;
break;
case 3:
if (fabs(inputSample) > threshold)
{
if (inputSample > 0.0) {
inputSample = (inputSample * voicing) + (targetthreshold * (1.0-voicing));
threshold = fabs(inputSample);
} else {
inputSample = (inputSample * voicing) - (targetthreshold * (1.0-voicing));
threshold = fabs(inputSample);
}
muVary = targetthreshold / fabs(inputSample);
muAttack = sqrt(fabs(muSpeedC));
muCoefficientC = muCoefficientC * (muAttack-1);
if (muVary < threshold)
{
muCoefficientC = muCoefficientC + targetthreshold;
}
else
{
muCoefficientC = muCoefficientC + muVary;
}
muCoefficientC = muCoefficientC / muAttack;
}
else
{
threshold = targetthreshold;
muCoefficientC = muCoefficientC * ((muSpeedC * muSpeedC)-1.0);
muCoefficientC = muCoefficientC + 1.0;
muCoefficientC = muCoefficientC / (muSpeedC * muSpeedC);
}
muNewSpeed = muSpeedC * (muSpeedC-1);
muNewSpeed = muNewSpeed + fabs(inputSample*release)+fastest;
muSpeedC = muNewSpeed / muSpeedC;
lastCoefficientA = pow(muCoefficientC,2);
mergedCoefficients = lastCoefficientB;
mergedCoefficients += lastCoefficientA;
lastCoefficientA *= (1.0-lastCorrection);
lastCoefficientA += (muCoefficientC * lastCorrection);
lastCoefficientB = lastCoefficientA;
break;
}
count++;
//applied compression with vari-vari-�-�-�-�-�-�-is-the-kitten-song o/~
//applied gain correction to control output level- tends to constrain sound rather than inflate it
if (fpFlip) {
if (fabs(inputSample) > thresholdB)
{
if (inputSample > 0.0) {
inputSample = (inputSample * voicing) + (targetthreshold * (1.0-voicing));
thresholdB = fabs(inputSample);
} else {
inputSample = (inputSample * voicing) - (targetthreshold * (1.0-voicing));
thresholdB = fabs(inputSample);
}
muVary = targetthreshold / fabs(inputSample);
muAttack = sqrt(fabs(muSpeedD));
muCoefficientD = muCoefficientD * (muAttack-1.0);
if (muVary < thresholdB)
{
muCoefficientD = muCoefficientD + targetthreshold;
}
else
{
muCoefficientD = muCoefficientD + muVary;
}
muCoefficientD = muCoefficientD / muAttack;
}
else
{
thresholdB = targetthreshold;
muCoefficientD = muCoefficientD * ((muSpeedD * muSpeedD)-1.0);
muCoefficientD = muCoefficientD + 1.0;
muCoefficientD = muCoefficientD / (muSpeedD * muSpeedD);
}
muNewSpeed = muSpeedD * (muSpeedD-1);
muNewSpeed = muNewSpeed + fabs(inputSample*release)+fastest;
muSpeedD = muNewSpeed / muSpeedD;
lastCoefficientC = pow(muCoefficientE,2);
mergedCoefficients += lastCoefficientD;
mergedCoefficients += lastCoefficientC;
lastCoefficientC *= (1.0-lastCorrection);
lastCoefficientC += (muCoefficientD * lastCorrection);
lastCoefficientD = lastCoefficientC;
} else {
if (fabs(inputSample) > thresholdB)
{
if (inputSample > 0.0) {
inputSample = (inputSample * voicing) + (targetthreshold * (1.0-voicing));
thresholdB = fabs(inputSample);
} else {
inputSample = (inputSample * voicing) - (targetthreshold * (1.0-voicing));
thresholdB = fabs(inputSample);
}
muVary = targetthreshold / fabs(inputSample);
muAttack = sqrt(fabs(muSpeedE));
muCoefficientE = muCoefficientE * (muAttack-1.0);
if (muVary < thresholdB)
{
muCoefficientE = muCoefficientE + targetthreshold;
}
else
{
muCoefficientE = muCoefficientE + muVary;
}
muCoefficientE = muCoefficientE / muAttack;
}
else
{
thresholdB = targetthreshold;
muCoefficientE = muCoefficientE * ((muSpeedE * muSpeedE)-1.0);
muCoefficientE = muCoefficientE + 1.0;
muCoefficientE = muCoefficientE / (muSpeedE * muSpeedE);
}
muNewSpeed = muSpeedE * (muSpeedE-1);
muNewSpeed = muNewSpeed + fabs(inputSample*release)+fastest;
muSpeedE = muNewSpeed / muSpeedE;
lastCoefficientC = pow(muCoefficientE,2);
mergedCoefficients += lastCoefficientD;
mergedCoefficients += lastCoefficientC;
lastCoefficientC *= (1.0-lastCorrection);
lastCoefficientC += (muCoefficientE * lastCorrection);
lastCoefficientD = lastCoefficientC;
}
mergedCoefficients *= 0.25;
inputSample *= mergedCoefficients;
if (outMakeupGain != 1.0) inputSample = inputSample * outMakeupGain;
fpFlip = !fpFlip;
if (wet < 1.0) {
inputSample = (inputSample * wet) + (drySample * (1.0-wet));
}
if (inputSample > 0.999) inputSample = 0.999;
if (inputSample < -0.999) inputSample = -0.999;
//iron bar clip comes after the dry/wet: alternate way to clean things up
//begin 32 bit floating point dither
int expon; frexpf((float)inputSample, &expon);
fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5;
inputSample += static_cast<int32_t>(fpd) * 5.960464655174751e-36L * pow(2,expon+62);
//end 32 bit floating point dither
*destP = inputSample;
sourceP += inNumChannels; destP += inNumChannels;
}
}