/*
* File: PodcastDeluxe.cpp
*
* Version: 1.0
*
* Created: 5/24/19
*
* Copyright: Copyright � 2019 Airwindows, All Rights Reserved
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/*=============================================================================
PodcastDeluxe.cpp
=============================================================================*/
#include "PodcastDeluxe.h"
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
COMPONENT_ENTRY(PodcastDeluxe)
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// PodcastDeluxe::PodcastDeluxe
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PodcastDeluxe::PodcastDeluxe(AudioUnit component)
: AUEffectBase(component)
{
CreateElements();
Globals()->UseIndexedParameters(kNumberOfParameters);
SetParameter(kParam_One, kDefaultValue_ParamOne );
#if AU_DEBUG_DISPATCHER
mDebugDispatcher = new AUDebugDispatcher (this);
#endif
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// PodcastDeluxe::GetParameterValueStrings
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult PodcastDeluxe::GetParameterValueStrings(AudioUnitScope inScope,
AudioUnitParameterID inParameterID,
CFArrayRef * outStrings)
{
return kAudioUnitErr_InvalidProperty;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// PodcastDeluxe::GetParameterInfo
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult PodcastDeluxe::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;
default:
result = kAudioUnitErr_InvalidParameter;
break;
}
} else {
result = kAudioUnitErr_InvalidParameter;
}
return result;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// PodcastDeluxe::GetPropertyInfo
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult PodcastDeluxe::GetPropertyInfo (AudioUnitPropertyID inID,
AudioUnitScope inScope,
AudioUnitElement inElement,
UInt32 & outDataSize,
Boolean & outWritable)
{
return AUEffectBase::GetPropertyInfo (inID, inScope, inElement, outDataSize, outWritable);
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// PodcastDeluxe::GetProperty
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult PodcastDeluxe::GetProperty( AudioUnitPropertyID inID,
AudioUnitScope inScope,
AudioUnitElement inElement,
void * outData )
{
return AUEffectBase::GetProperty (inID, inScope, inElement, outData);
}
// PodcastDeluxe::Initialize
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult PodcastDeluxe::Initialize()
{
ComponentResult result = AUEffectBase::Initialize();
if (result == noErr)
Reset(kAudioUnitScope_Global, 0);
return result;
}
#pragma mark ____PodcastDeluxeEffectKernel
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// PodcastDeluxe::PodcastDeluxeKernel::Reset()
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void PodcastDeluxe::PodcastDeluxeKernel::Reset()
{
for(int count = 0; count < 502; count++) {d1[count] = 0.0; d2[count] = 0.0; d3[count] = 0.0; d4[count] = 0.0; d5[count] = 0.0;}
tap1 = 1; tap2 = 1; tap3 = 1; tap4 = 1; tap5 = 1;
maxdelay1 = 9001; maxdelay2 = 9001; maxdelay3 = 9001; maxdelay4 = 9001; maxdelay5 = 9001;
c1 = 2.0; c2 = 2.0; c3 = 2.0; c4 = 2.0; c5 = 2.0; //startup comp gains
fpd = 17;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// PodcastDeluxe::PodcastDeluxeKernel::Process
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void PodcastDeluxe::PodcastDeluxeKernel::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();
int allpasstemp;
Float64 outallpass = 0.618033988749894848204586;
Float64 compress = 1.0+pow(GetParameter( kParam_One )*0.8,2);
Float64 speed1 = 128.0 / pow(compress,2);
speed1 *= overallscale;
Float64 speed2 = speed1 * 1.4;
Float64 speed3 = speed2 * 1.5;
Float64 speed4 = speed3 * 1.6;
Float64 speed5 = speed4 * 1.7;
maxdelay1 = (int)(23.0*overallscale);
maxdelay2 = (int)(19.0*overallscale);
maxdelay3 = (int)(17.0*overallscale);
maxdelay4 = (int)(13.0*overallscale);
maxdelay5 = (int)(11.0*overallscale);
//set up the prime delays
Float64 refclip = 0.999;
Float64 softness = 0.435;
Float64 invsoft = 0.56;
Float64 outsoft = 0.545;
Float64 trigger;
while (nSampleFrames-- > 0) {
long double inputSample = *sourceP;
if (fabs(inputSample)<1.18e-37) inputSample = fpd * 1.18e-37;
allpasstemp = tap1 - 1;
if (allpasstemp < 0 || allpasstemp > maxdelay1) {allpasstemp = maxdelay1;}
//set up the delay position
//using 'tap' and 'allpasstemp' to position the tap
inputSample -= d1[allpasstemp]*outallpass;
d1[tap1] = inputSample;
inputSample *= outallpass;
inputSample += (d1[allpasstemp]);
//allpass stage
tap1--; if (tap1 < 0 || tap1 > maxdelay1) {tap1 = maxdelay1;}
//decrement the position for reals
inputSample *= c1;
trigger = fabs(inputSample)*4.7;
if (trigger > 4.7) trigger = 4.7;
trigger = sin(trigger);
if (trigger < 0) trigger *= 8.0;
if (trigger < -4.2) trigger = -4.2;
c1 += trigger/speed5;
if (c1 > compress) c1 = compress;
//compress stage
allpasstemp = tap2 - 1;
if (allpasstemp < 0 || allpasstemp > maxdelay2) {allpasstemp = maxdelay2;}
//set up the delay position
//using 'tap' and 'allpasstemp' to position the tap
inputSample -= d2[allpasstemp]*outallpass;
d2[tap2] = inputSample;
inputSample *= outallpass;
inputSample += (d2[allpasstemp]);
//allpass stage
tap2--; if (tap2 < 0 || tap2 > maxdelay2) {tap2 = maxdelay2;}
//decrement the position for reals
inputSample *= c2;
trigger = fabs(inputSample)*4.7;
if (trigger > 4.7) trigger = 4.7;
trigger = sin(trigger);
if (trigger < 0) trigger *= 8.0;
if (trigger < -4.2) trigger = -4.2;
c2 += trigger/speed4;
if (c2 > compress) c2 = compress;
//compress stage
allpasstemp = tap3 - 1;
if (allpasstemp < 0 || allpasstemp > maxdelay3) {allpasstemp = maxdelay3;}
//set up the delay position
//using 'tap' and 'allpasstemp' to position the tap
inputSample -= d3[allpasstemp]*outallpass;
d3[tap3] = inputSample;
inputSample *= outallpass;
inputSample += (d3[allpasstemp]);
//allpass stage
tap3--; if (tap3 < 0 || tap3 > maxdelay3) {tap3 = maxdelay3;}
//decrement the position for reals
inputSample *= c3;
trigger = fabs(inputSample)*4.7;
if (trigger > 4.7) trigger = 4.7;
trigger = sin(trigger);
if (trigger < 0) trigger *= 8.0;
if (trigger < -4.2) trigger = -4.2;
c3 += trigger/speed3;
if (c3 > compress) c3 = compress;
//compress stage
allpasstemp = tap4 - 1;
if (allpasstemp < 0 || allpasstemp > maxdelay4) {allpasstemp = maxdelay4;}
//set up the delay position
//using 'tap' and 'allpasstemp' to position the tap
inputSample -= d4[allpasstemp]*outallpass;
d4[tap4] = inputSample;
inputSample *= outallpass;
inputSample += (d4[allpasstemp]);
//allpass stage
tap4--; if (tap4 < 0 || tap4 > maxdelay4) {tap4 = maxdelay4;}
//decrement the position for reals
inputSample *= c4;
trigger = fabs(inputSample)*4.7;
if (trigger > 4.7) trigger = 4.7;
trigger = sin(trigger);
if (trigger < 0) trigger *= 8.0;
if (trigger < -4.2) trigger = -4.2;
c4 += trigger/speed2;
if (c4 > compress) c4 = compress;
//compress stage
allpasstemp = tap5 - 1;
if (allpasstemp < 0 || allpasstemp > maxdelay5) {allpasstemp = maxdelay5;}
//set up the delay position
//using 'tap' and 'allpasstemp' to position the tap
inputSample -= d5[allpasstemp]*outallpass;
d5[tap5] = inputSample;
inputSample *= outallpass;
inputSample += (d5[allpasstemp]);
//allpass stage
tap5--; if (tap5 < 0 || tap5 > maxdelay5) {tap5 = maxdelay5;}
//decrement the position for reals
inputSample *= c5;
trigger = fabs(inputSample)*4.7;
if (trigger > 4.7) trigger = 4.7;
trigger = sin(trigger);
if (trigger < 0) trigger *= 8.0;
if (trigger < -4.2) trigger = -4.2;
c5 += trigger/speed1;
if (c5 > compress) c5 = compress;
//compress stage
if (compress > 1.0) inputSample /= compress;
if (lastSample >= refclip)
{
if (inputSample < refclip)
{
lastSample = (outsoft + (inputSample * softness));
}
else lastSample = refclip;
}
if (lastSample <= -refclip)
{
if (inputSample > -refclip)
{
lastSample = (-outsoft + (inputSample * softness));
}
else lastSample = -refclip;
}
if (inputSample > refclip)
{
if (lastSample < refclip)
{
inputSample = (invsoft + (lastSample * softness));
}
else inputSample = refclip;
}
if (inputSample < -refclip)
{
if (lastSample > -refclip)
{
inputSample = (-invsoft + (lastSample * softness));
}
else inputSample = -refclip;
}
//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;
}
}
