/* * File: PodcastDeluxe.cpp * * Version: 1.0 * * Created: 5/24/19 * * Copyright: Copyright © 2019 Airwindows, All Rights Reserved * * Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc. ("Apple") in * consideration of your agreement to the following terms, and your use, installation, modification * or redistribution of this Apple software constitutes acceptance of these terms. 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APPLE MAKES NO WARRANTIES, EXPRESS OR * IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY * AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE * OR IN COMBINATION WITH YOUR PRODUCTS. * * IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, * REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER * UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN * IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ /*============================================================================= 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; } }