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VA.soul
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VA.soul
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/** MIT License
Copyright (c) 2022 Zhe Deng
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
/** SOUL-VA (https://github.com/thezhe/SOUL-VA)
Effects are 'Processors' under 'VA::HighLevel'
Use with SOUL v1.0.82
The interface is nearly identical to soul::filters EXCEPT:
- Each effect has at least input and output SampleType streams named 'in' and 'out'
- All input events are of type 'float'
- Max gain applied via an effect (excluding Makeup) is about +6 dB.
In practice (depending on sampling rate), this value may be a few dB higher due to over/undersampling interpolation filters.
- No user-defined types:
*'SampleType' is float64<2>
*The internal 'CoeffType' is float64<2>
*Coefficient 'updateInterval' is every 1024 samples at 44.1kHz
or every (48/44.1)*1024 samples at 48 kHz (scales with sample rate)
- Parameters not suitable for modulation are commented as 'UNSMOOTHED' in their annotations.
Annotations with "boolean" and "text" values are assumed to be unsuitable for modulation.
- Meta parameters will have "Meta" in their event endpoint names.
- Expanded set of vector-friendly functions (see 'Vectorized Intrinsic/Helper' sections)
- Algebraic operations are preferred to avoid expensive transcendentals while providing superior
accuracy and click-free modulation when compared to lookup tables
See: https://en.wikipedia.org/wiki/Algebraic_function
- Non-iterative, analytical solutions are preferred, but not always guaranteed
See: https://math.stackexchange.com/questions/935405/what-s-the-difference-between-analytical-and-numerical-approaches-to-problems
- Common sampling rates from 44.1 to 192 kHz are supported, but the internal sampling rate will always be either
44.1 or 48 kHz. This allows for consistent rendering and antialiasing of all effects, including ones that behave
differently depending on sample rate.
- Each section is marked with a date of last stable update (MM/DD/YYYY)
*/
/** Next version (1.1.0) changelog
- New Effects: TheExpressor, TheSplit, TheUtility
- New QA Framework: PLUG-QA
- Updated Effects
- All common sample rates from 44.1 to 192 kHz supported
*/
/** Task List
- generic ADAA snippet and refactor
- smoothed parameter compile time
- TheSlewEQ, match 44.1 and 48 kHz sound, soft clip
- TheBass, TheSplit update to 192kHz support and TheExpressor standard
- low attack times the split, and compensate attack * 2 for attacks & sustains
- more Processors, include integrator processors, more modularity and oversampling/ADAA granularity
- TheBass boilerplate, abs before stereo link and rectified lan
- small dx approximation for hysteretic L
*/
namespace VA
{
/*==============================================================================
VA::HighLevel Processors 03/17/22
==============================================================================*/
/** High-level Processors made of components from 'VA' and 'soul' namespaces
ALL effects can behave nonlinearly and add their own 'virtual analog warmth'
*/
namespace HighLevel
{
/** Transient Designer with accurate
Use case: Mix the attack/sustain portions of a signal
*/
namespace TheSlap
{
graph Processor (float iHpfCutoffHz = 1,
float iStereoLinkPercent = 0,
float iAttackMs = 4,
float iSustainMs = 75,
float iSensitivity_dB = 24,
float iAttack_dB = 0,
float iSustain_dB = -60,
float iMaster_dB = 0)
{
input stream SampleType in;
output stream SampleType out;
input
{
smoothedVolume.volumeIn attackVolIn [[ name: "Attack", min: FLOAT_MIN_VOLUME - 0.1f, max: 12, init: iAttack_dB, step: 0.1f, unit: "dB", group: "Volume" ]];
smoothedVolume1.volumeIn sustainVolIn [[ name: "Sustain", min: FLOAT_MIN_VOLUME - 0.1f, max: 12, init: iSustain_dB, step: 0.1f, unit: "dB", group: "Volume" ]];
smoothedVolume2.volumeIn masterIn [[ name: "Master", min: -12, max: 12, init: iMaster_dB, step: 0.1f, unit: "dB", group: "Volume" ]];
}
let
{
internalDS0 = Internal::Processor (iHpfCutoffHz, iStereoLinkPercent, iAttackMs, iSustainMs, iSensitivity_dB);
internalDS2 = Internal::Processor (iHpfCutoffHz, iStereoLinkPercent, iAttackMs, iSustainMs, iSensitivity_dB) / 2;
internalDS4 = Internal::Processor (iHpfCutoffHz, iStereoLinkPercent, iAttackMs, iSustainMs, iSensitivity_dB) / 4;
mux3To1Fs = Mux3To1Fs::Processor;
mux3To1Fs1 = Mux3To1Fs::Processor;
smoothedVolume = SmoothedVolume::Processor (iAttack_dB);
smoothedVolume1 = SmoothedVolume::Processor (iSustain_dB);
sum = Sum::Processor;
smoothedVolume2 = SmoothedVolume::Processor (iMaster_dB);
}
connection
{
//shared input events
//dynamically downsample to 44.1/48 kHz
[sinc] in -> internalDS0.in, internalDS2.in, internalDS4.in;
[sinc] internalDS0.attackOut -> mux3To1Fs.in;
[sinc] internalDS2.attackOut -> mux3To1Fs.in1;
[sinc] internalDS4.attackOut -> mux3To1Fs.in2;
[sinc] internalDS0.sustainOut -> mux3To1Fs1.in;
[sinc] internalDS2.sustainOut -> mux3To1Fs1.in1;
[sinc] internalDS4.sustainOut -> mux3To1Fs1.in2;
//volume
mux3To1Fs.out -> smoothedVolume.in;
mux3To1Fs1.out -> smoothedVolume1.in;
smoothedVolume.out -> sum.in;
smoothedVolume1.out -> sum.in1;
sum.out -> smoothedVolume2.in;
smoothedVolume2.out -> out;
}
}
namespace Internal
{
graph Processor (float iHpfCutoffHz,
float iStereoLinkPercent,
float iAttackMs,
float iSustainMs,
float iSensitivity_dB)
{
input stream SampleType in;
output stream SampleType attackOut, sustainOut;
input
{
splitAttackSustain.cutoffHP_In;
splitAttackSustain.stereoLinkIn;
splitAttackSustain.attackIn;
splitAttackSustain.sustainIn;
splitAttackSustain.sensitivityIn;
}
let
{
splitAttackSustain = SplitAttackSustain::Processor (iHpfCutoffHz, iStereoLinkPercent, iAttackMs, iSustainMs, iSensitivity_dB);
}
connection
{
in -> splitAttackSustain.in;
splitAttackSustain.attackOut -> attackOut;
splitAttackSustain.sustainOut -> sustainOut;
}
}
}
}
/** Utility Processor
Use case: Mix, Pan, Makeup, and Complement
Notes:
- This is a common Processor and may be used in other Processors in this namespace
- Use directly; DO NOT over/undersample or add additional filtering.
*/
namespace TheUtility
{
namespace PanModeIdx
{
let Unlinked = 0;
let Linked = 1;
let Inverted = 2;
let NumIdxs = 3;
}
namespace AB_ModeIdx
{
let Dry = false;
let Wet = true;
let NumIdxs = 2;
}
namespace VolumeModeIdx
{
let WetDry = 0;
let WetMix = 1;
let WetAB = 2;
let NumIdxs = 3;
}
graph Processor(bool iWetComplementBool = false,
bool iInvertL_Bool = false,
bool iInvertR_Bool = false,
float iWet_dB = 0,
float iDry_dB = 0,
float iMixPercent = 100,
bool iAB_ModeIdx = AB_ModeIdx::Wet,
int iVolumeModeIdx = VolumeModeIdx::WetDry,
float iPanDry = 0,
float iPanWet = 0,
int iPanModeIdx = PanModeIdx::Unlinked)
{
input stream SampleType in, dryIn;
output stream SampleType out;
input
{
mux2To1.idxIn complementIn [[ name: "Complement", init: float (iWetComplementBool), boolean, group: "Wet" ]];
phaseInverts.invertL_In [[ name: "Invert L", init: float (iInvertL_Bool), boolean, group: "Wet" ]];
phaseInverts.invertR_In [[ name: "Invert R", init: float (iInvertR_Bool), boolean, group: "Wet" ]];
upWet.in volumeWetIn [[ name: "Wet", min: FLOAT_MIN_VOLUME - 0.1f, max: 24, init: iWet_dB, step: 0.1f, unit: "dB", group: "Volume" ]]; //maps to -inf dB if below FLOAT_MIN_VOLUME
upDry.in volumeDryIn [[ name: "Dry", min: FLOAT_MIN_VOLUME - 0.1f, max: 24, init: iDry_dB, step: 0.1f, unit: "dB", group: "Volume" ]];
upMix.in mixIn [[ name: "Mix", min: 0, max: 100, init: iMixPercent, unit: "%", step: 1, group: "Volume" ]];
upAB.in AB_In [[ name: "A/B", init: float (iAB_ModeIdx), boolean, text: "Dry|Wet", group: "Volume" ]];
event float volumeModeIn [[ name: "Mode", min: 0, init: iVolumeModeIdx, text: "Wet-Dry|Wet-Mix|Wet-A/B", group: "Volume" ]];
upPanWet.in panWetIn [[ name: "Wet", min: -1, max: 1, init: iPanWet, step: 0.01f, group: "Pan" ]];
upPanDry.in panDryIn [[ name: "Dry", min: -1, max: 1, init: iPanDry, step: 0.01f, group: "Pan" ]];
event float panModeMetaIn [[ name: "Mode", min: 0, init: iPanModeIdx, text: "Unlinked|Linked|Inverted", group: "Pan" ]];
}
let
{
//Wet
mux2To1 = Mux2To1::Processor (iWetComplementBool);
difference = Difference::Processor;
phaseInverts = PhaseInverts::Processor (iInvertL_Bool, iInvertR_Bool);
//Volume
upWet = UP::Processor (UP::ParameterType (iWet_dB), UP::ModeIdx::VolumeToGain);
upDry = UP::Processor (UP::ParameterType (iDry_dB), UP::ModeIdx::VolumeToGain);
upMix = UP::Processor (UP::ParameterType (iMixPercent), UP::ModeIdx::MixToGains);
upAB = UP::Processor (UP::ParameterType (iAB_ModeIdx), UP::ModeIdx::AB_ToGains);
//Pan
upPanWet = UP::Processor (UP::ParameterType (iPanWet), UP::ModeIdx::PanToGain);
upPanDry = UP::Processor (UP::ParameterType (iPanDry), UP::ModeIdx::PanToGain);
//gains, muxes, smoothing
streamToEvents = StreamToEvents::Processor;
streamToEvents1 = StreamToEvents::Processor;
sp = SP::Processor (SP::ParameterType (1), SP::ModeIdx::StereoGainsToGains);
applyGains = ApplyGains::Processor;
applyGain = ApplyGain::Processor;
applyGain1 = ApplyGain::Processor;
applyGain3 = ApplyGain::Processor;
applyGain4 = ApplyGain::Processor;
mux3To1 = Mux3To1::Processor (iVolumeModeIdx);
mux3To1_1 = Mux3To1::Processor (iVolumeModeIdx);
}
connection
{
//events
volumeModeIn -> mux3To1.idxIn, mux3To1_1.idxIn;
//Wet
dryIn -> difference.in;
in -> difference.in1, mux2To1.in;
difference.out -> mux2To1.in1;
mux2To1.out -> phaseInverts.in;
//Volume and Pan (Wet)
upWet.out -> applyGain.in, applyGain1.in, mux3To1.in;
upMix.out1 -> applyGain.b;
applyGain.out -> mux3To1.in1;
upAB.out1 -> applyGain1.b;
applyGain1.out -> mux3To1.in2;
upPanWet.out -> applyGain3.in;
mux3To1.out -> applyGain3.b;
applyGain3.out -> streamToEvents.in;
streamToEvents.out -> sp.in2;
streamToEvents.out1 -> sp.in3;
//Volume and Pan (Dry)
upDry.out -> mux3To1_1.in;
upMix.out -> mux3To1_1.in1;
upAB.out -> mux3To1_1.in2;
mux3To1_1.out -> applyGain4.in;
upPanDry.out -> applyGain4.b;
applyGain4.out -> streamToEvents1;
streamToEvents1.out -> sp.in;
streamToEvents1.out1 -> sp.in1;
//Apply Volume and Pan
dryIn -> applyGains.in;
sp.out -> applyGains.b;
phaseInverts.out -> applyGains.in1;
sp.out1 -> applyGains.b1;
applyGains.out -> out;
}
}
}
/** Signal splitter
Use case: Center/Sides (spatial), Crossover (frequency), Loud/Soft (amplitude), Attack/Sustain (time)
*/
namespace TheSplit
{
namespace Modes
{
let CenterSides = 0;
let LowHigh = 1;
let AttackSustain = 2;
let LoudSoft = 3;
let NumModes = 4;
}
graph Processor(int iMode = Modes::CenterSides,
bool iSwapOutputsBool = false,
float iCenterSidesPercent = 100,
float iFrequencyHz = 1000,
float iAttackMs = 4,
float iSustainMs = 30,
float iSensitivity_dB = 24,
float iThreshold_dB = -30,
float iReleaseMs = 30,
float iStereoLinkLsPercent = 0)
{
input stream SampleType in;
output stream SampleType out, out1;
input event
{
float modeIn [[ name: "Mode", min: 0, init: iMode, text: "C&S|L&H|A&S|L&S", group: "Main" /*UNSMOOTHED*/ ]];
float swapIn [[ name: "Output Swap", init: float (iSwapOutputsBool), boolean, group: "Main" /*UNSMOOTHED*/ ]];
float centerSidesIn [[ name: "Split Amount", min: 0, max: 100, init: iCenterSidesPercent, unit: "%", step: 1, group: "Centers & Sides" ]];
float frequencyIn [[ name: "Frequency", min: 20, max: 20000, init: iFrequencyHz, step: 1, unit: "Hz", group: "Lows & Highs" ]];
float attackIn [[ name: "Attack", min: 4, max: 26, init: iAttackMs, step: 1, unit: "ms", group: "Attacks & Sustains" ]];
float sustainIn [[ name: "Sustain", min: 30, max: 200, init: iSustainMs, step: 1, unit: "ms", group: "Attacks & Sustains" ]];
float sensitivityIn [[ name: "Sensitivity", min: 0, max: 36, init: iSensitivity_dB, step: 1, unit: "dB", group: "Attacks & Sustains" ]];
float thresholdIn [[ name: "Threshold", min: -50, max: 0, init: iThreshold_dB, unit: "dB", step: 1, group: "Louds & Softs" ]];
float releaseIn [[ name: "Release", min: 30, max: 999, init: iReleaseMs, unit: "ms", step: 1, group: "Louds & Softs" ]];
float stereoLinkLsIn [[ name: "Stereo Link", min: 0, max: 100, init: iStereoLinkLsPercent, unit: "%", step: 1, group: "Louds & Softs" ]];
}
let
{
internalDS0 = Internal::Processor (iMode, iSwapOutputsBool, iCenterSidesPercent, iFrequencyHz, iAttackMs, iSustainMs, iSensitivity_dB, iThreshold_dB, iReleaseMs, iStereoLinkLsPercent);
internalDS2 = Internal::Processor (iMode, iSwapOutputsBool, iCenterSidesPercent, iFrequencyHz, iAttackMs, iSustainMs, iSensitivity_dB, iThreshold_dB, iReleaseMs, iStereoLinkLsPercent) / 2;
internalDS4 = Internal::Processor (iMode, iSwapOutputsBool, iCenterSidesPercent, iFrequencyHz, iAttackMs, iSustainMs, iSensitivity_dB, iThreshold_dB, iReleaseMs, iStereoLinkLsPercent) / 4;
mux3To1Fs = Mux3To1Fs::Processor;
mux3To1Fs1 = Mux3To1Fs::Processor;
}
connection
{
//shared input events
modeIn -> internalDS0.modeIn, internalDS2.modeIn, internalDS4.modeIn;
swapIn -> internalDS0.swapIn, internalDS2.swapIn, internalDS4.swapIn;
frequencyIn -> internalDS0.frequencyIn, internalDS2.frequencyIn, internalDS4.frequencyIn;
attackIn -> internalDS0.attackIn, internalDS2.attackIn, internalDS4.attackIn;
releaseIn -> internalDS0.releaseIn, internalDS2.releaseIn, internalDS4.releaseIn;
sensitivityIn -> internalDS0.sensitivityIn, internalDS2.sensitivityIn, internalDS4.sensitivityIn;
thresholdIn -> internalDS0.thresholdIn, internalDS2.thresholdIn, internalDS4.thresholdIn;
releaseIn -> internalDS0.releaseIn, internalDS2.releaseIn, internalDS4.releaseIn;
stereoLinkLsIn -> internalDS0.stereoLinkLsIn, internalDS2.stereoLinkLsIn, internalDS4.stereoLinkLsIn;
//dynamically downsample to 44.1/48 kHz
[sinc] in -> internalDS0.in, internalDS2.in, internalDS4.in;
[sinc] internalDS0.out -> mux3To1Fs.in;
[sinc] internalDS2.out -> mux3To1Fs.in1;
[sinc] internalDS4.out -> mux3To1Fs.in2;
[sinc] internalDS0.out1 -> mux3To1Fs1.in;
[sinc] internalDS2.out1 -> mux3To1Fs1.in1;
[sinc] internalDS4.out1 -> mux3To1Fs1.in2;
mux3To1Fs.out -> out;
mux3To1Fs1.out -> out1;
}
}
namespace Internal
{
graph Processor(int iMode,
bool iSwapOutputsBool,
float iCenterSidesPercent,
float iFrequencyHz,
float iAttackMs,
float iSustainMs,
float iSensitivity_dB,
float iThreshold_dB,
float iReleaseMs,
float iStereoLinkLsPercent)
{
input stream SampleType in;
output stream SampleType out, out1;
input
{
event float modeIn;
event float swapIn;
splitCenterSides.centerSidesIn;
pCrossover.frequencyIn;
splitAttackSustain.attackIn;
splitAttackSustain.sustainIn;
splitAttackSustain.sensitivityIn;
splitLoudSoft.thresholdIn;
splitLoudSoft.releaseIn;
splitLoudSoft.stereoLinkIn stereoLinkLsIn;
}
let
{
//non-boilerplate Processors
splitCenterSides = SplitCenterSides::Processor (iCenterSidesPercent);
pCrossover = filt::tpt::crossover::Processor (iFrequencyHz);
splitAttackSustain = SplitAttackSustain::Processor (1, 100, iAttackMs, iSustainMs, iSensitivity_dB);
splitLoudSoft = SplitLoudSoft::Processor (iThreshold_dB, iReleaseMs, iStereoLinkLsPercent);
mux4To1_0 = Mux4To1::Processor (iMode);
mux4To1_1 = Mux4To1::Processor (iMode);
mux2To1_0 = Mux2To1::Processor (iSwapOutputsBool);
mux2To1_1 = Mux2To1::Processor (iSwapOutputsBool);
//boilerplate Processors
dcBlockerIn = DC_Blocker::Processor;
dcBlockerOut = DC_Blocker::Processor;
dcBlockerOut1 = DC_Blocker::Processor;
}
connection
{
modeIn -> mux4To1_0.idxIn, mux4To1_1.idxIn;
swapIn -> mux2To1_0.idxIn, mux2To1_1.idxIn;
in -> dcBlockerIn -> splitCenterSides.in, pCrossover.in, splitLoudSoft.in, splitAttackSustain.in;
splitCenterSides.centerOut -> mux4To1_0.in;
splitCenterSides.sidesOut -> mux4To1_1.in;
pCrossover.lowOut -> mux4To1_0.in1;
pCrossover.highOut -> mux4To1_1.in1;
splitAttackSustain.attackOut -> mux4To1_0.in2;
splitAttackSustain.sustainOut -> mux4To1_1.in2;
splitLoudSoft.loudOut -> mux4To1_0.in3;
splitLoudSoft.softOut -> mux4To1_1.in3;
mux4To1_0.out -> mux2To1_0.in, mux2To1_1.in1;
mux4To1_1.out -> mux2To1_0.in1, mux2To1_1.in;
mux2To1_0.out -> dcBlockerOut -> out;
mux2To1_1.out -> dcBlockerOut1 -> out1;
}
}
}
}
/** Upwards/Downwards (Ex)pander/Com(pressor) with a colored knee
Notes:
- Use case: limiter, general dynamics processor, parallel/ny compression, sidechain, emphasis/de-emphasis
- Tail: 0.5 s
*/
namespace TheExpressor
{
graph Processor(bool iSidechainBool = false,
float iAttackMs = 0.1f,
float iReleaseMs = 30,
float iStereoLinkPercent = 0,
float iThreshold_dB = -50,
float iRatio = 20,
float iRatio1 = 1,
float iSoftness_dB = 0,
float iColor_dB = 0,
float iHpfCutoffHz = 1,
float iMakeup_dB = 0,
float iMixPercent = 100)
{
input stream SampleType in, scIn;
output stream SampleType out, guiOut;
input
{
event float attackIn [[ name: "Attack", min: 0.1f, max: 50, init: iAttackMs, unit: "ms", step: 0.1, group: "Main"]];
event float releaseIn [[ name: "Release", min: 30, max: 3000, init: iReleaseMs, unit: "ms", step: 1, group: "Main" ]];
event float thresholdIn [[ name: "Threshold", min: -50.f, max: 0.f, init: iThreshold_dB, unit: "dB", step: 0.1f, group: "Main" ]];
event float ratioIn [[ name: "Post-Threshold", min: 0.5f, max: 20.f, init: iRatio, step: 0.1f, group: "Ratios" ]];
event float ratio1In [[ name: "Pre-Threshold", min: 0.5f, max: 1.5f, init: iRatio1, step: 0.1f, group: "Ratios" ]];
event float sidechainIn [[ name: "Sidechain", init: float (iSidechainBool), boolean, group: "Detector" /*UNSMOOTHED*/ ]];
event float cutoffHP_In [[ name: "High Pass", min: 1, max: 500, init: iHpfCutoffHz, unit: "Hz", step: 1, group: "Detector"]];
event float stereoLinkIn [[ name: "Stereo Link", min: 0, max: 100, init: iStereoLinkPercent, unit: "%", step: 1, group: "Detector" ]];
event float softnessIn [[ name: "Softness", min: 0, max: 24, init: iSoftness_dB, unit: "dB", step: 0.1f, group: "Knee" ]];
event float colorIn [[ name: "Color", min: -24, max: 24, init: iColor_dB, unit: "dB", step: 0.1f, group: "Knee" ]];
smoothedVolume.volumeIn makeupIn [[ name: "Makeup", min: -6, max: 50, init: iMakeup_dB, step: 0.1f, unit: "dB", group: "Utility" ]];
smoothedMixPan.mixIn [[ name: "Mix", min: 0, max: 100, init: iMixPercent, unit: "%", step: 1, group: "Utility" ]];
}
let
{
internalDS0 = Internal::Processor (iSidechainBool, iAttackMs, iReleaseMs, iStereoLinkPercent, iThreshold_dB, iRatio, iRatio1, iSoftness_dB, iColor_dB, iHpfCutoffHz);
internalDS2 = Internal::Processor (iSidechainBool, iAttackMs, iReleaseMs, iStereoLinkPercent, iThreshold_dB, iRatio, iRatio1, iSoftness_dB, iColor_dB, iHpfCutoffHz) / 2;
internalDS4 = Internal::Processor (iSidechainBool, iAttackMs, iReleaseMs, iStereoLinkPercent, iThreshold_dB, iRatio, iRatio1, iSoftness_dB, iColor_dB, iHpfCutoffHz) / 4;
mux3To1Fs = Mux3To1Fs::Processor;
mux3To1Fs1 = Mux3To1Fs::Processor;
smoothedVolume = SmoothedVolume::Processor (iMakeup_dB);
smoothedMixPan = SmoothedMixPan::Processor (iMixPercent, 0);
}
connection
{
//input event float
attackIn -> internalDS0.attackIn, internalDS2.attackIn, internalDS4.attackIn;
releaseIn -> internalDS0.releaseIn, internalDS2.releaseIn, internalDS4.releaseIn;
thresholdIn -> internalDS0.thresholdIn, internalDS2.thresholdIn, internalDS4.thresholdIn;
ratioIn -> internalDS0.ratioIn, internalDS2.ratioIn, internalDS4.ratioIn;
ratio1In -> internalDS0.ratio1In, internalDS2.ratio1In, internalDS4.ratio1In;
sidechainIn -> internalDS0.sidechainIn, internalDS2.sidechainIn, internalDS4.sidechainIn;
cutoffHP_In -> internalDS0.cutoffHP_In, internalDS2.cutoffHP_In, internalDS4.cutoffHP_In;
stereoLinkIn -> internalDS0.stereoLinkIn, internalDS2.stereoLinkIn, internalDS4.stereoLinkIn;
softnessIn -> internalDS0.softnessIn, internalDS2.softnessIn, internalDS4.softnessIn;
colorIn -> internalDS0.colorIn, internalDS2.colorIn, internalDS4.colorIn;
//apply 3 downsampling rates
[sinc] in -> internalDS0.in, internalDS2.in, internalDS4.in;
[sinc] scIn -> internalDS0.scIn, internalDS2.scIn, internalDS4.scIn;
[sinc] internalDS0.out -> mux3To1Fs.in;
[sinc] internalDS2.out -> mux3To1Fs.in1;
[sinc] internalDS4.out -> mux3To1Fs.in2;
[sinc] internalDS0.guiOut -> mux3To1Fs1.in;
[sinc] internalDS2.guiOut -> mux3To1Fs1.in1;
[sinc] internalDS4.guiOut -> mux3To1Fs1.in2;
mux3To1Fs1.out -> guiOut;
//utility
in -> smoothedMixPan.dryIn;
mux3To1Fs.out -> smoothedVolume.in;
smoothedVolume.out -> smoothedMixPan.wetIn;
smoothedMixPan.out -> out;
}
}
namespace Internal
{
graph Processor(bool iSidechainBool,
float iAttackMs,
float iReleaseMs,
float iStereoLinkPercent,
float iThreshold_dB,
float iRatio,
float iRatio1,
float iSoftness_dB,
float iColor_dB,
float iHpfCutoffHz)
{
input stream SampleType in, scIn;
output stream SampleType out, guiOut;
input
{
mux2To1.idxIn sidechainIn;
detector.cutoffHP_In;
detector.stereoLinkIn;
ballisticsFilter.attackIn;
ballisticsFilter.releaseIn;
ctfColor.thresholdIn;
ctfColor.ratioIn;
ctfColor.ratio1In;
ctfColor.softnessIn;
ctfColor.colorIn;
}
let
{
dcBlocker = DC_Blocker::Processor;
mux2To1 = Mux2To1::Processor (iSidechainBool);
detector = Detector::Processor (iHpfCutoffHz, iStereoLinkPercent);
ballisticsFilter = BallisticsFilter::Processor (iAttackMs, iReleaseMs);
ctfColor = CTF_Color::Processor (iThreshold_dB, iRatio, iRatio1, iSoftness_dB, iColor_dB);
applyGain = ApplyGain::Processor;
}
connection
{
in -> dcBlocker -> applyGain.in;
in -> mux2To1.in;
scIn -> mux2To1.in1;
mux2To1.out -> detector.in;
detector.out -> ballisticsFilter.in;
ballisticsFilter.out -> ctfColor.in;
ctfColor.out -> applyGain.b, guiOut;
applyGain.out -> out;
}
}
}
}
/** Modulated 'DelayLine' with 'LadderLpfS' attached to its output
Notes:
- Use case: chorus, slow flange, doubler, stereo widener
- Loosely based on Boss CE-3 Chorus Pedal
- Tail: 0.5 s
*/
namespace TheChorus
{
graph Processor(float iDepthPercent = 0,
float iRateHz = 0,
float iWidthDeg = 0,
float iDelayMs = 0,
int iMode = Lfo::Modes::Triangle,
float iCutoffHz = 3000,
float iMakeup_dB = 0,
float iMixPercent = 100,
float iPan = 0)
{
input stream SampleType in;
output stream SampleType out;
input
{
event float depthIn [[ name: "Depth", min: 0, max: 100, init: iDepthPercent, unit: "%", step: 1, group: "Main" ]];
event float rateIn [[ name: "Rate", min: 0.1, max: 4.0, init: iRateHz, unit: "Hz", step: 0.1, group: "Main" ]];
event float widthIn [[ name: "Width", min: -180, max: 180, init: iWidthDeg, unit: "deg", step: 1, group: "Main" /*UNSMOOTHED*/ ]];
event float delayIn [[ name: "Min Delay", min: 0, max: 35, init: iDelayMs, unit: "ms", step: 1, group: "LFO" /*UNSMOOTHED*/ ]];
event float modeIn [[ name: "Waveform", init: iMode, boolean, text: "Tri|Sine", group: "LFO" /*UNSMOOTHED*/ ]];
event float cutoffIn [[ name: "Cutoff", min: 3000, max: 18000, init: iCutoffHz, unit: "Hz", step: 1, group: "BBD Ladder" ]];
smoothedVolume.volumeIn makeupIn [[ name: "Makeup", min: -12, max: 12, init: iMakeup_dB, step: 0.1f, unit: "dB", group: "Utility" ]];
smoothedMixPan.mixIn [[ name: "Mix", min: 0, max: 100, init: iMixPercent, unit: "%", step: 1, group: "Utility" ]];
smoothedMixPan.panIn [[ name: "Pan", min: -1, max: 1, init: iPan, step: 0.01f, group: "Utility" ]];
}
let
{
internalDS0 = Internal::Processor (iDepthPercent, iRateHz, iWidthDeg, iMode, iDelayMs, iCutoffHz);
internalDS2 = Internal::Processor (iDepthPercent, iRateHz, iWidthDeg, iMode, iDelayMs, iCutoffHz) / 2;
internalDS4 = Internal::Processor (iDepthPercent, iRateHz, iWidthDeg, iMode, iDelayMs, iCutoffHz) / 4;
mux3To1Fs = Mux3To1Fs::Processor;
smoothedVolume = SmoothedVolume::Processor (iMakeup_dB);
smoothedMixPan = SmoothedMixPan::Processor (iMixPercent, iPan);
}
connection
{
//shared input events
depthIn -> internalDS0.depthIn, internalDS2.depthIn, internalDS4.depthIn;
rateIn -> internalDS0.rateIn, internalDS2.rateIn, internalDS4.rateIn;
widthIn -> internalDS0.widthIn, internalDS2.widthIn, internalDS4.widthIn;
delayIn -> internalDS0.delayIn, internalDS2.delayIn, internalDS4.delayIn;
modeIn -> internalDS0.modeIn, internalDS2.modeIn, internalDS4.modeIn;
cutoffIn -> internalDS0.cutoffIn, internalDS2.cutoffIn, internalDS4.cutoffIn;
//dynamically downsample to 44.1/48 kHz
[sinc] in -> internalDS0.in, internalDS2.in, internalDS4.in;
[sinc] internalDS0.out -> mux3To1Fs.in;
[sinc] internalDS2.out -> mux3To1Fs.in1;
[sinc] internalDS4.out -> mux3To1Fs.in2;
//utility
in -> smoothedMixPan.dryIn;
mux3To1Fs.out -> smoothedVolume.in;
smoothedVolume.out -> smoothedMixPan.wetIn;
smoothedMixPan.out -> out;
}
}
namespace Internal
{
graph Processor (float iDepthPercent,
float iRateHz,
float iWidthDeg,
int iMode,
float iDelayMs,
float iCutoffHz)
{
input stream SampleType in;
output stream SampleType out;
input
{
lfo.depthIn;
lfo.rateIn;
lfo.widthIn;
lfo.modeIn;
delayLine.delayIn;
ladderLpfS.cutoffIn;
}
let
{
dcBlocker = DC_Blocker::Processor;
lfo = Lfo::Processor (iDepthPercent, iRateHz, iWidthDeg, iMode);
delayLine = DelayLine::Processor (iDelayMs, 35, 4);
ladderLpfS = LadderLpfS::Processor (iCutoffHz, 1, 0.5f);
}
connection
{
lfo.out -> delayLine.lfoIn;
in -> dcBlocker -> delayLine.in;
delayLine.out -> ladderLpfS.in;
ladderLpfS.out -> out;
}
}
}
}
/** 'OnepoleC' in all pass mode modulated by 'LanADAA'
Use case: boost and sustain low frequencies
*/
namespace TheBass
{
graph Processor (float iNonlinearity = 250, float iStereoLinkPercent = 100)
{
input stream SampleType in;
output stream SampleType out;
input
{
event float nonlinearityIn [[ name: "Nonlin", min: 0, max: 350, init: iNonlinearity, step: 1 /*UNSMOOTHED*/]];
stereoLink.stereoLinkIn;
autoSmoothedVolume.parameterIn volumeIn;
//smoothedMixPan.mixIn;
//smoothedMixPan.panIn;
}
let
{
stereoLink = StereoLink::Processor (iStereoLinkPercent);
internal = Internal::Processor (iNonlinearity) * 2;
onepoleMixer = OnepoleMixer::Processor (OnepoleMixer::ModeIdx::AP, 0);
//boilerplate Processors
dcBlockerIn = filt::dc_blocker::Processor (0.1);
autoSmoothedVolume = AutoSmoothedVolume::Processor (AutoParameter::Modes::Volume_OnepoleC_Lan);
// smoothedMixPan = SmoothedMixPan::Processor (iMixPercent, iPan);
}
connection
{
nonlinearityIn -> internal.nonlinearityIn;
nonlinearityIn -> autoSmoothedVolume.controlIn;
in -> dcBlockerIn -> stereoLink.in, internal.in;
stereoLink.out -> internal.Lin;
internal.highpassOut -> onepoleMixer.highpassIn;
internal.lowpassOut -> onepoleMixer.lowpassIn;
onepoleMixer.out -> autoSmoothedVolume.in;
autoSmoothedVolume.out -> out;
}
}
namespace Internal
{
graph Processor (float iNonlinearity)
{
input stream SampleType in, Lin;
output stream SampleType highpassOut, lowpassOut;
input
{
L.nonlinearityIn;
}
let
{
L = LanADAA::Processor (iNonlinearity);
onepoleC = OnepoleC::Processor;
}
connection
{
in -> onepoleC.in;
Lin -> L.in;
L.Omega -> onepoleC.Omega;
onepoleC.highpassOut -> highpassOut;
onepoleC.lowpassOut -> lowpassOut;
}
}
}
}
/** A dummy processor that doesn't modify streams
Use case: debugging
*/
namespace TheDummy
{
graph Processor()
{
input stream SampleType in;
output stream SampleType out;
connection
{
in -> out;
}
}
}
} //namespace HighLevel
/*==============================================================================
Filter Processors 04/09/22
==============================================================================*/
/** Ladder Low Pass Filter with variable order and saturating state
Notes:
- currently hard-coded to 4th order lpf
- Resonance up to 2 reccomended
- Even though its nonlinear, the filter can become unstable if using an unbounded nonlinearity
i.e., the filter can self-oscillate with nonlinear functions like 'tanh'
*/
namespace LadderLpfS
{
graph Processor (float iCutoff, float iResonance, float iNonlinearity)
{
input stream SampleType in;
output stream SampleType out;
input
{
smoothedParameter0.in cutoffIn [[ name: "Cutoff", min: 3000, max: 18000, init: iCutoff, unit: "Hz", step: 1 ]];
smoothedParameter1.in resonanceIn [[ name: "Resonance", min: 0, max: 2, init: iResonance, step: 0.01f ]];
internal.nonlinearityIn;
}
let
{
smoothedParameter0 = UnsmoothedParameter::Processor (UnsmoothedParameter::ParameterType (iCutoff), UnsmoothedParameter::ModeIdx::CutoffToOmega);
smoothedParameter1 = SmoothedParameter::Processor (SmoothedParameter::ParameterType (iResonance), SmoothedParameter::ModeIdx::GainToGain);
internal = Internal::Processor (iNonlinearity) * 2;
}
connection
{
smoothedParameter0.out -> internal.OmegaIn;
smoothedParameter1.out -> internal.kIn;
in -> internal.in;
internal.out -> out;
}
}
namespace Internal
{
struct Coeffs
{
SampleType g; //G for onepole stages
SampleType k; //resonance
SampleType N; //nonlinearity
}
void updatePerSample (Coeffs& c, SampleType Omega, SampleType k, float64 fs)
{
c.g = vOmegaToG_Onepole (Omega, fs);
c.k = k;
}
namespace M (int order)
{
static_assert (order % 2 == 0, "LadderFilter::M [[Filter Processors]]");
void update (Coeffs& c, float nonlinearity, float64 fs)
{
c.N = float (88200 / fs) * nonlinearity * (1.f + float (c.k[0])); //nonlinearity scaled according to fs and other params
}
struct State
{
SampleType[order] s;
}
SampleType process (State& s, SampleType x, const Coeffs& c)
{
let xNorm = x * (ONE + c.k); //normalize magnitude at 0 Hz to 0 dB
var S = ZERO;
var G = ONE;
for (int i = order - 1; i > -1; --i)
{
S += G * s.s.at(i);
G *= c.g;
}
//input to first lowpass ('u')
var y = (xNorm - c.k * S) / (ONE + c.k * G);
//'order' lowpasses in series
for (int i = 0; i < order; ++i)
{
let v = (y - s.s.at(i)) * c.g;
y = vBBD(v + s.s.at(i), c.N); //saturation
s.s.at(i) = v + y;
}
return y;
}
}
processor Processor (float iNonlinearity, int order = 4)
{
input stream SampleType in;
output stream SampleType out;
input stream SampleType OmegaIn, kIn;
input event float nonlinearityIn [[ name: "Nonlin", min: 0, max: 1, init: iNonlinearity, step: 0.01]];
event nonlinearityIn (float v) { nonlinearity = v; recalc = true; }
float nonlinearity = iNonlinearity;
bool recalc = true;
static_assert (order == 4, "LadderLpfS::Processor [[Filter Processors]] Other filter orders not yet implemented.");