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orklev2-audio

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Mis à jour9 avril 2026 à 16:44

Answer questions about orkid's Singularity synthesizer engine, DSP processing, oscillators, filters, envelopes, modulation, sampling, FM synthesis, audio output, and program/bank structure. Use when the user asks about audio, synth, DSP, or sound.

Installation

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Source

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tweakoz/orkid

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Métiers associésSOC

Basé sur la classification professionnelle SOC

Développeurs de logicielsProfessions informatiques et mathématiques·SOC 15-1252

SKILL.md

readonly

name	orklev2-audio
description	Answer questions about orkid's Singularity synthesizer engine, DSP processing, oscillators, filters, envelopes, modulation, sampling, FM synthesis, audio output, and program/bank structure. Use when the user asks about audio, synth, DSP, or sound.
user-invocable	false

Orkid Singularity Audio/Synth Engine Reference

When answering questions about audio or the synthesizer in orkid, consult the files below. All under ork.lev2/.

Key Files

Component	Header
Synth Engine	`inc/ork/lev2/aud/singularity/synth.h`
Layer (Voice)	`inc/ork/lev2/aud/singularity/layer.h`
DSP Blocks/Pipeline	`inc/ork/lev2/aud/singularity/dspblocks.h`
Program/Bank Data	`inc/ork/lev2/aud/singularity/synthdata.h`
Oscillators	`inc/ork/lev2/aud/singularity/alg_oscil.h`
Filters	`inc/ork/lev2/aud/singularity/alg_filters.h`
Amplitude/Gain	`inc/ork/lev2/aud/singularity/alg_amp.h`
Nonlinear/Distortion	`inc/ork/lev2/aud/singularity/alg_nonlin.h`
Envelopes	`inc/ork/lev2/aud/singularity/envelope.h`
Controllers/LFO	`inc/ork/lev2/aud/singularity/controller.h`
Modulation Routing	`inc/ork/lev2/aud/singularity/modulation.h`
Sampler	`inc/ork/lev2/aud/singularity/sampler.h`
Wavetable	`inc/ork/lev2/aud/singularity/wavetable.h`
FM Operators	`inc/ork/lev2/aud/singularity/fmosc.h`
TX81Z Emulation	`inc/ork/lev2/aud/singularity/tx81z.h`
CZ1 Phase Distortion	`inc/ork/lev2/aud/singularity/cz1.h`
Delays	`inc/ork/lev2/aud/singularity/delays.h`
DSP Buffer	`inc/ork/lev2/aud/singularity/dspbuffer.h`
Key On/Off	`inc/ork/lev2/aud/singularity/konoff.h`
Types	`inc/ork/lev2/aud/singularity/krztypes.h`
Audio Device	`inc/ork/lev2/aud/audiodevice.h`

Architecture Overview

Execution Model

Voice-based polyphonic synthesis (up to 512 voices)
Control rate: 1500 Hz (32 frames @ 48kHz)
Sample rate: 48 kHz
Per-voice DSP pipeline with stages in series

Signal Flow

Voice -> Layer -> Algorithm (multi-stage)
  -> DspStage 0 [Block0, Block1, ...] -> DspStage 1 -> ... -> OutputBus
    -> Insert Effects -> Master EQ -> Audio Device

Core Classes

synth — main engine, voice allocation, output buses
Layer — runtime voice instance, holds DSP state
LayerData — voice config (algorithm, controllers, keymap, pitch)
Alg / AlgData — algorithm container (up to 16 stages)
DspStage / DspStageData — stack of up to 32 DSP blocks
DspBlock / DspBlockData — individual DSP unit (abstract base)

Program/Bank Structure

BankData
+-- programs (int -> ProgramData)
+-- keymaps (int -> KeyMapData)
+-- multisamples (int -> MultiSampleData)

ProgramData
+-- name, tags, monophonic, portamento
+-- _layerdatas[] (multiple layers per program)
    +-- LayerData
        +-- _algdata (DSP algorithm)
        +-- _ctrlBlock (controllers)
        +-- _kmpBlock (keymap for samples)
        +-- loKey/hiKey, loVel/hiVel (range)
        +-- output bus routing

Oscillator Types

SINE, SAW, SQUARE (band-limited with PolyBLEP)
SINEPLUS, SAWPLUS, SWPLUSSHP (harmonically enriched)
SHAPEMODOSC, PLUSSHAPEMODOSC (shape modulation)
SYNCM / SYNCS (oscillator sync master/slave)
SAMPLER (multi-sample playback with keymaps)
TX81Z FM operators (4-op Yamaha emulation)
CZ1 phase distortion

Filter Types

TrapSVF — state variable (LPF/HPF/BPF/Notch, trap-rule)
BiQuad — 2nd-order IIR
OnePoleLoPass / OnePoleHiPass — 1st order
ParaOne — parametric EQ with shelving
DSP blocks: LP2RES, LOPAS2, LPGATE, BANDPASS_FILT, NOTCH_FILT, etc.

Envelope Types

RateLevelEnvData — ADSR-style with segment times/levels
AsrData — Attack-Sustain-Release
YmEnvData — Yamaha: AR/D1/S/D2
TX81ZEnvData — TX81Z with polynomial rate scaling

Modulation System

DspParamData
+-- _coarse (base value)
+-- _fine (fine tuning)
+-- _keyTrack (keyboard follow)
+-- _velTrack (velocity follow)
+-- _mods (BlockModulationData)
    +-- _src1 (primary: LFO, envelope, etc.)
    +-- _src2 (depth modulation)

Custom evaluators: pitch, frequency, amplitude, or lambda-based.

Key On/Off

synth::keyOn(note, vel, program, keyonmods)
  -> Layer::keyOn(note, vel, layerdata, outputbus)
    -> Alg::keyOn() -> all DspBlocks, Controllers

How to Answer

For DSP blocks: check dspblocks.h for base class, alg_*.h for specific types
For modulation: read modulation.h for routing, controller.h for LFO/envelope sources
For sample playback: read sampler.h for KeyMapData, MultiSampleData, SampleOscillator
For program structure: read synthdata.h for BankData/ProgramData hierarchy

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name	orklev2-audio
description	Answer questions about orkid's Singularity synthesizer engine, DSP processing, oscillators, filters, envelopes, modulation, sampling, FM synthesis, audio output, and program/bank structure. Use when the user asks about audio, synth, DSP, or sound.
user-invocable	false

Orkid Singularity Audio/Synth Engine Reference

When answering questions about audio or the synthesizer in orkid, consult the files below. All under ork.lev2/.

Key Files

Component	Header
Synth Engine	`inc/ork/lev2/aud/singularity/synth.h`
Layer (Voice)	`inc/ork/lev2/aud/singularity/layer.h`
DSP Blocks/Pipeline	`inc/ork/lev2/aud/singularity/dspblocks.h`
Program/Bank Data	`inc/ork/lev2/aud/singularity/synthdata.h`
Oscillators	`inc/ork/lev2/aud/singularity/alg_oscil.h`
Filters	`inc/ork/lev2/aud/singularity/alg_filters.h`
Amplitude/Gain	`inc/ork/lev2/aud/singularity/alg_amp.h`
Nonlinear/Distortion	`inc/ork/lev2/aud/singularity/alg_nonlin.h`
Envelopes	`inc/ork/lev2/aud/singularity/envelope.h`
Controllers/LFO	`inc/ork/lev2/aud/singularity/controller.h`
Modulation Routing	`inc/ork/lev2/aud/singularity/modulation.h`
Sampler	`inc/ork/lev2/aud/singularity/sampler.h`
Wavetable	`inc/ork/lev2/aud/singularity/wavetable.h`
FM Operators	`inc/ork/lev2/aud/singularity/fmosc.h`
TX81Z Emulation	`inc/ork/lev2/aud/singularity/tx81z.h`
CZ1 Phase Distortion	`inc/ork/lev2/aud/singularity/cz1.h`
Delays	`inc/ork/lev2/aud/singularity/delays.h`
DSP Buffer	`inc/ork/lev2/aud/singularity/dspbuffer.h`
Key On/Off	`inc/ork/lev2/aud/singularity/konoff.h`
Types	`inc/ork/lev2/aud/singularity/krztypes.h`
Audio Device	`inc/ork/lev2/aud/audiodevice.h`

Architecture Overview

Execution Model

Voice-based polyphonic synthesis (up to 512 voices)
Control rate: 1500 Hz (32 frames @ 48kHz)
Sample rate: 48 kHz
Per-voice DSP pipeline with stages in series

Signal Flow

Voice -> Layer -> Algorithm (multi-stage)
  -> DspStage 0 [Block0, Block1, ...] -> DspStage 1 -> ... -> OutputBus
    -> Insert Effects -> Master EQ -> Audio Device

Core Classes

synth — main engine, voice allocation, output buses
Layer — runtime voice instance, holds DSP state
LayerData — voice config (algorithm, controllers, keymap, pitch)
Alg / AlgData — algorithm container (up to 16 stages)
DspStage / DspStageData — stack of up to 32 DSP blocks
DspBlock / DspBlockData — individual DSP unit (abstract base)

Program/Bank Structure

BankData
+-- programs (int -> ProgramData)
+-- keymaps (int -> KeyMapData)
+-- multisamples (int -> MultiSampleData)

ProgramData
+-- name, tags, monophonic, portamento
+-- _layerdatas[] (multiple layers per program)
    +-- LayerData
        +-- _algdata (DSP algorithm)
        +-- _ctrlBlock (controllers)
        +-- _kmpBlock (keymap for samples)
        +-- loKey/hiKey, loVel/hiVel (range)
        +-- output bus routing

Oscillator Types

SINE, SAW, SQUARE (band-limited with PolyBLEP)
SINEPLUS, SAWPLUS, SWPLUSSHP (harmonically enriched)
SHAPEMODOSC, PLUSSHAPEMODOSC (shape modulation)
SYNCM / SYNCS (oscillator sync master/slave)
SAMPLER (multi-sample playback with keymaps)
TX81Z FM operators (4-op Yamaha emulation)
CZ1 phase distortion

Filter Types

TrapSVF — state variable (LPF/HPF/BPF/Notch, trap-rule)
BiQuad — 2nd-order IIR
OnePoleLoPass / OnePoleHiPass — 1st order
ParaOne — parametric EQ with shelving
DSP blocks: LP2RES, LOPAS2, LPGATE, BANDPASS_FILT, NOTCH_FILT, etc.

Envelope Types

RateLevelEnvData — ADSR-style with segment times/levels
AsrData — Attack-Sustain-Release
YmEnvData — Yamaha: AR/D1/S/D2
TX81ZEnvData — TX81Z with polynomial rate scaling

Modulation System

DspParamData
+-- _coarse (base value)
+-- _fine (fine tuning)
+-- _keyTrack (keyboard follow)
+-- _velTrack (velocity follow)
+-- _mods (BlockModulationData)
    +-- _src1 (primary: LFO, envelope, etc.)
    +-- _src2 (depth modulation)

Custom evaluators: pitch, frequency, amplitude, or lambda-based.

Key On/Off

synth::keyOn(note, vel, program, keyonmods)
  -> Layer::keyOn(note, vel, layerdata, outputbus)
    -> Alg::keyOn() -> all DspBlocks, Controllers

How to Answer

For DSP blocks: check dspblocks.h for base class, alg_*.h for specific types
For modulation: read modulation.h for routing, controller.h for LFO/envelope sources
For sample playback: read sampler.h for KeyMapData, MultiSampleData, SampleOscillator
For program structure: read synthdata.h for BankData/ProgramData hierarchy