/*
* File: Elation.cpp
*
* Version: 1.0
*
* Created: 1/11/20
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/*=============================================================================
Elation.cpp
=============================================================================*/
#include "Elation.h"
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
COMPONENT_ENTRY(Elation)
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Elation::Elation
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Elation::Elation(AudioUnit component)
: AUEffectBase(component)
{
CreateElements();
Globals()->UseIndexedParameters(kNumberOfParameters);
SetParameter(kParam_One, kDefaultValue_ParamOne );
SetParameter(kParam_Two, kDefaultValue_ParamTwo );
SetParameter(kParam_Three, kDefaultValue_ParamThree );
SetParameter(kParam_Four, kDefaultValue_ParamFour );
#if AU_DEBUG_DISPATCHER
mDebugDispatcher = new AUDebugDispatcher (this);
#endif
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Elation::GetParameterValueStrings
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Elation::GetParameterValueStrings(AudioUnitScope inScope,
AudioUnitParameterID inParameterID,
CFArrayRef * outStrings)
{
return kAudioUnitErr_InvalidProperty;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Elation::GetParameterInfo
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Elation::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 = 3.0;
outParameterInfo.defaultValue = kDefaultValue_ParamTwo;
break;
case kParam_Three:
AUBase::FillInParameterName (outParameterInfo, kParameterThreeName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 3.0;
outParameterInfo.defaultValue = kDefaultValue_ParamThree;
break;
case kParam_Four:
AUBase::FillInParameterName (outParameterInfo, kParameterFourName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamFour;
break;
default:
result = kAudioUnitErr_InvalidParameter;
break;
}
} else {
result = kAudioUnitErr_InvalidParameter;
}
return result;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Elation::GetPropertyInfo
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Elation::GetPropertyInfo (AudioUnitPropertyID inID,
AudioUnitScope inScope,
AudioUnitElement inElement,
UInt32 & outDataSize,
Boolean & outWritable)
{
return AUEffectBase::GetPropertyInfo (inID, inScope, inElement, outDataSize, outWritable);
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Elation::GetProperty
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Elation::GetProperty( AudioUnitPropertyID inID,
AudioUnitScope inScope,
AudioUnitElement inElement,
void * outData )
{
return AUEffectBase::GetProperty (inID, inScope, inElement, outData);
}
// Elation::Initialize
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult Elation::Initialize()
{
ComponentResult result = AUEffectBase::Initialize();
if (result == noErr)
Reset(kAudioUnitScope_Global, 0);
return result;
}
#pragma mark ____ElationEffectKernel
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Elation::ElationKernel::Reset()
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void Elation::ElationKernel::Reset()
{
for(int count = 0; count < 34; count++) {b[count] = 0;}
compA = 1.0; compB = 1.0; flip = false; previous = 0.0;
compC = 1.0; compD = 1.0; previousB = 0.0;
lastSample = 0.0;
fpd = 17;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Elation::ElationKernel::Process
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void Elation::ElationKernel::Process( const Float32 *inSourceP,
Float32 *inDestP,
UInt32 inFramesToProcess,
UInt32 inNumChannels,
bool &ioSilence )
{
UInt32 nSampleFrames = inFramesToProcess;
const Float32 *sourceP = inSourceP;
Float32 *destP = inDestP;
Float64 wet = GetParameter( kParam_One );
Float64 sqdrive = GetParameter( kParam_Two );
if (sqdrive > 1.0) sqdrive *= sqdrive;
sqdrive = sqrt(sqdrive);
Float64 indrive = GetParameter( kParam_Three );
Float64 compthreshold = (6.0 - indrive)/6.0;
Float64 recoveryspd = indrive / 32.0;
if (indrive > 1.0) indrive *= indrive;
indrive *= (1.0+(0.226*sqdrive));
//no gain loss of convolution for APIcolypse
//calibrate this to match noise level with character at 1.0
//you get for instance 0.819 and 1.0-0.819 is 0.181
Float64 randy;
Float64 outlevel = GetParameter( kParam_Four );
Float64 threshSample;
Float64 abSample;
Float64 outputSample;
while (nSampleFrames-- > 0) {
long double inputSample = *sourceP;
if (fabs(inputSample)<1.18e-37) inputSample = fpd * 1.18e-37;
double drySample = inputSample;
inputSample *= indrive;
abSample = fabs(inputSample);
if (abSample > previous) threshSample = previous;
else threshSample = abSample;
//calibrated to match gain through convolution and -0.3 correction
//quick lil compression
if (threshSample > 2.0)
{
compA = (compA + (1.0 / threshSample)) / 2.0;
compB = (compB + (1.0 / threshSample)) / 2.0;
}
if (flip)
{
inputSample *= compA;
threshSample *= compA;
if (threshSample > compthreshold)
{compA = (compA + compA + (compthreshold / threshSample)) / 3.0;}
else
{if (compA < 1.0) compA += pow((1.0-compA)*recoveryspd,7);}
}
else
{
inputSample *= compB;
threshSample *= compB;
if (threshSample > compthreshold)
{compB = (compB + compB + (compthreshold / threshSample)) / 3.0;}
else
{if (compB < 1.0) compB += pow((1.0-compB)*recoveryspd,7);}
}
previous = abSample;
//now the convolution
if (sqdrive > 0.0){
b[33] = b[32]; b[32] = b[31];
b[31] = b[30]; b[30] = b[29]; b[29] = b[28]; b[28] = b[27]; b[27] = b[26]; b[26] = b[25]; b[25] = b[24]; b[24] = b[23];
b[23] = b[22]; b[22] = b[21]; b[21] = b[20]; b[20] = b[19]; b[19] = b[18]; b[18] = b[17]; b[17] = b[16]; b[16] = b[15];
b[15] = b[14]; b[14] = b[13]; b[13] = b[12]; b[12] = b[11]; b[11] = b[10]; b[10] = b[9]; b[9] = b[8]; b[8] = b[7];
b[7] = b[6]; b[6] = b[5]; b[5] = b[4]; b[4] = b[3]; b[3] = b[2]; b[2] = b[1]; b[1] = b[0]; b[0] = inputSample * sqdrive;
//inputSample -= ((b[1] * (0.25867935358656502 - (0.00045755657070112*fabs(b[1]))))*threshold);
inputSample -= (b[1] * (0.25867935358656502 - (0.00045755657070112*fabs(b[1]))));
inputSample += (b[2] * (0.11509367290253694 - (0.00017494270657228*fabs(b[2]))));
inputSample -= (b[3] * (0.06709853575891785 - (0.00058913102597723*fabs(b[3]))));
inputSample += (b[4] * (0.01871006356851681 - (0.00003387358004645*fabs(b[4]))));
inputSample -= (b[5] * (0.00794797957360465 - (0.00044224784691203*fabs(b[5]))));
inputSample -= (b[6] * (0.01956921817394220 - (0.00006718936750076*fabs(b[6]))));
inputSample += (b[7] * (0.01682120257195205 + (0.00032857446292230*fabs(b[7]))));
inputSample -= (b[8] * (0.03401069039824205 - (0.00013634182872897*fabs(b[8]))));
inputSample += (b[9] * (0.02369950268232634 + (0.00023112685751657*fabs(b[9]))));
inputSample -= (b[10] * (0.03477071178117132 - (0.00018029792231600*fabs(b[10]))));
inputSample += (b[11] * (0.02024369717958201 + (0.00017337813374202*fabs(b[11]))));
inputSample -= (b[12] * (0.02819087729102172 - (0.00021438538665420*fabs(b[12]))));
inputSample += (b[13] * (0.01147946743141303 + (0.00014424066034649*fabs(b[13]))));
inputSample -= (b[14] * (0.01894777011468867 - (0.00021549146262408*fabs(b[14]))));
inputSample += (b[15] * (0.00301370330346873 + (0.00013527460148394*fabs(b[15]))));
inputSample -= (b[16] * (0.01067147835815486 - (0.00020960689910868*fabs(b[16]))));
inputSample -= (b[17] * (0.00402715397506384 - (0.00014421582712470*fabs(b[17]))));
inputSample -= (b[18] * (0.00502221703392005 - (0.00019805767015024*fabs(b[18]))));
inputSample -= (b[19] * (0.00808788533308497 - (0.00016095444141931*fabs(b[19]))));
inputSample -= (b[20] * (0.00232696588842683 - (0.00018384470981829*fabs(b[20]))));
inputSample -= (b[21] * (0.00943950821324531 - (0.00017098987347593*fabs(b[21]))));
inputSample -= (b[22] * (0.00193709517200834 - (0.00018151995939591*fabs(b[22]))));
inputSample -= (b[23] * (0.00899713952612659 - (0.00017385835059948*fabs(b[23]))));
inputSample -= (b[24] * (0.00280584331659089 - (0.00017742164162470*fabs(b[24]))));
inputSample -= (b[25] * (0.00780381001954970 - (0.00018002500755708*fabs(b[25]))));
inputSample -= (b[26] * (0.00400370310490333 - (0.00017471691087957*fabs(b[26]))));
inputSample -= (b[27] * (0.00661527728186928 - (0.00018137323370347*fabs(b[27]))));
inputSample -= (b[28] * (0.00496545526864518 - (0.00017681872601767*fabs(b[28]))));
inputSample -= (b[29] * (0.00580728820997532 - (0.00018186220389790*fabs(b[29]))));
inputSample -= (b[30] * (0.00549309984725666 - (0.00017722985399075*fabs(b[30]))));
inputSample -= (b[31] * (0.00542194777529239 - (0.00018486900185338*fabs(b[31]))));
inputSample -= (b[32] * (0.00565992080998939 - (0.00018005824393118*fabs(b[32]))));
inputSample -= (b[33] * (0.00532121562846656 - (0.00018643189636216*fabs(b[33]))));}
//we apply the first samples of the impulse- dynamically adjusted.
abSample = fabs(inputSample);
if (abSample > previousB) threshSample = previousB;
else threshSample = abSample;
//calibrated to match gain through convolution and -0.3 correction
//quick lil compression
if (threshSample > 2.0)
{
compC = (compC + (1.0 / threshSample)) / 2.0;
compD = (compD + (1.0 / threshSample)) / 2.0;
}
if (flip)
{
inputSample *= compC;
threshSample *= compC;
if (threshSample > compthreshold)
{compC = (compC + compC + (compthreshold / threshSample)) / 3.0;}
else
{if (compC < 1.0) compC += pow((1.0-compC)*recoveryspd,7);}
}
else
{
inputSample *= compD;
threshSample *= compD;
if (threshSample > compthreshold)
{compD = (compD + compD + (compthreshold / threshSample)) / 3.0;}
else
{if (compD < 1.0) compD += pow((1.0-compD)*recoveryspd,7);}
}
previousB = abSample;
//another dose of compression, please
flip = !flip;
randy = ((rand()/(double)RAND_MAX)*0.054);
outputSample = ((((inputSample*(1-randy))+(lastSample*randy))*wet)+(drySample*(1.0-wet))) * outlevel;
lastSample = inputSample;
inputSample = outputSample;
//begin 32 bit floating point dither
int expon; frexpf((float)inputSample, &expon);
fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5;
inputSample += ((double(fpd)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
//end 32 bit floating point dither
*destP = inputSample;
sourceP += inNumChannels; destP += inNumChannels;
}
}
