DSP module reference

Oscillator oscillator Periodic waveform source — Sine, Saw, Square, Triangle. Var-Shape Osc varshapeosc Morphing oscillator — sine→saw→square via Shape + pulse width. Var-Saw Osc varsawosc Anti-aliased morphable saw — Shape + pulse width + VCA Amp. Band-Limited Osc blosc Alias-free triangle / saw / square oscillator. FM Operator fm2 2-operator FM voice — bells, e-pianos, metallic basses. Z-Oscillator zoscillator Casio-style phase-distortion oscillator — resonant, vocal timbres. VOSIM Osc vosim Vowel-formant oscillator — two formants sync’d to a carrier. Formant Osc formantosc Vocal-tract resonator — sinewave with alias-free phase reset. Harmonic Osc harmonicosc Additive oscillator — 16 sine partials with their own drawbars. Oscillator Bank oscillatorbank Divide-down organ — seven drawbar registrations of one note. Modal Voice modalvoice Struck modal resonator — bells, mallets, metallic percussion. String Voice stringvoice Extended Karplus-Strong — plucked / bowed string tones. Pluck pluck Karplus-Strong plucked string / drum — trigger + decay + damp. White Noise whitenoise Stochastic noise source — drum bodies, S&H seeds, percussion. Fractal Noise fractalnoise Octave-stacked noise — pink/brown textures, smoother than White Noise. Clocked Noise clockednoise Sample-and-held noise at a target rate — stepped, rhythmic textures. Dust dust Randomly-clocked impulses — density-controlled crackle and grains.

Filter filter Resonant SVF: 12 dB / 24 dB lowpass / highpass / bandpass. Moog Ladder moogladder Characterful 4-pole Moog-style lowpass — cutoff + resonance. Tone tone Lightweight one-pole lowpass (6 dB/oct). Cutoff in Hz. One-Pole onepole Lightweight one-pole LP/HP (6 dB/oct). Cutoff in Hz. Comb Filter comb Tuned resonant delay — plucked-string tones, metallic ringing, flanger body.

LFO lfo Low-frequency oscillator for slow modulation. Sub-audio rate. Envelope envelope ADSR contour — Attack / Decay / Sustain / Release. Gate-driven. AD Envelope adenv One-shot Attack-Decay contour, fired on a rising-edge trigger. Envelope Follower envfollower Turns an audio signal into a control signal that tracks its level. Metro metro Periodic clock — emits a Trig pulse at a set rate (Hz). Phasor phasor Rising 0→1 ramp at a set frequency (Hz). Sample & Hold samplehold Latches the Signal input on each Trig — stepped CV. Smooth Random smoothrandom Interpolated random walk (−1..1) — organic modulation. Jitter jitter Randomly-segmented drift — new target, new duration, every segment. MayTrig maytrig Probability gate for a clock — passes each trigger through, or drops it. Glide glide Portamento / slew — smooths a control signal over time. Line / Ramp line One-shot linear ramp Start→End over a set time, fired on a trigger.

Bass Drum bassdrum 808-style analog kick — trigger + freq / tone / decay. Snare Drum snaredrum 808-style analog snare — trigger + freq / tone / snappy / decay. Synth Bass Drum synthbassdrum Cleaner, modern kick — sine body with a pitch sweep, click and noise attack. Synth Snare Drum synthsnaredrum Tighter, modern snare — distorted sine body mixed against a noise burst. Hi-Hat hihat 808-style metallic hi-hat — trigger + decay (closed/open).

Delay delay Tape-style echo with time, feedback, and dry/wet mix. Overdrive overdrive Soft-knee tube-style saturation. Drive 0–1. Tremolo tremolo Amplitude LFO — rhythmic volume wobble. Rate + Depth. Bitcrush bitcrush Lo-fi bit-depth + sample-rate crush. Crush Rate CV. Auto-Wah autowah Envelope-following wah filter sweep. Wah CV. Flanger flanger Modulated short delay with feedback. Rate + Depth + Feedback. Phaser phaser All-pass sweep, 1–8 poles. Rate + Depth + Feedback. Chorus chorus Detuned dual-voice shimmer. Mono in → stereo out. Wavefolder wavefolder West-coast folding distortion. Gain drives the fold amount. Decimator decimator Lo-fi downsample + bitcrush. Both factors are CV ports. SR Reducer srreducer Pure sample-rate reduction (no bit crush). Freq CV. Fold fold Foldover distortion driven by a fold increment. Increment CV. Pitch Shifter pitchshifter Time-domain ± semitone pitch shift. Transpose CV. Reverb reverb Stereo plate (ReverbSc). Big buffer — one instance per patch.

Compressor compressor Dynamics compressor with optional sidechain key. dB threshold. Limiter limiter One-knob brickwall peak limiter. Safety net before the output. Balance balance Matches Sig level to a Comp signal (RMS level follower).

Mixer mixer Sums 2–4 signals. Wire audio into a Gain input and it is also a VCA / ring modulator. Crossfade crossfade Blends two signals (A↔B) with linear or constant-power curve. Stereo Panner panner Pans one signal across two outputs with an equal-power law. Stereo Width stereowidth Mid/Side width control — collapse a stereo pair to mono, or push it wider.

Sample Player sampleplayer Plays a .wav from the SD card (Daisy Pod). Trig restarts; loop optional. Recorder recorder Records audio to a .wav on the SD card while the Record gate is high. SD Preset sdpreset Saves Parameter values to the SD card on a Save gate; restores them on boot.

Audio Sync Out syncout PO/Volca sync master — square pulse train (BPM × PPQN) on an audio rail. Audio Sync In syncin PO/Volca sync slave — Schmitt-triggers audio pulses into Trig / Gate / BPM.

DC Block dcblock Removes DC offset — recentres a signal on zero. Unit Delay unitdelay Holds a sample for one tick — the node that makes feedback loops legal. Scale / Offset scaleoffset Affine map — Gain × In + Offset. Invert, bias, range-map, or convert a knob to musical pitch. Math math Two inputs, one fixed operator: add, subtract, multiply, divide, min, max, or compare. Step Selector stepselector Wrapping index driven by a trigger or a position source — one-hot gate per step, plus the index. Pickup pickup Soft takeover — holds a value while inactive, and on return waits until the live signal crosses it before following. Note Pad notepad Touch 2 only — maps a pad range to a scale. Outputs Freq Hz + Gate + Trig.