Pico DSP

Erica Synths 3HP
EFFECTS DELAY REVERB GRANULAR DISTORTION

Verified sheet

The facts on this sheet have been cross-checked against the sources below.

Sources
Suggest a correction

3HP DSP multi-effect with eight algorithms: mono / pitch-shift / stereo / granular delay, reverb, saturated reverb, Leslie speaker and overdrive / bitcrush. Mono in, stereo out. CV over Parameter 1 on every effect.

Patch Ideas · 5

★ Drone freeze
VCO burst → IN · Effect: Granular Delay · Parameter 1 → max to freeze · Wet full
▸ Show diagram
Patch diagramPatch diagram with 3 modules and 3 connections. Modules: PICO DSP, VCO, Mixer. Signals: 3 audio.PICO DSPVCOMixerEffect: Granular DelayParam 1: CW (freeze)Wet/Dry: full wetINaudioOUT LaudioOUT RaudioOutaudioLaudioRaudioaudio
★ Clocked pitch delay
Drum bus → IN · Effect: Pitch Shift Delay · clock-derived CV → Param 1 for stepped pitch
▸ Show diagram
Patch diagramPatch diagram with 4 modules and 4 connections. Modules: PICO DSP, Drum Bus, S&H, Mixer. Signals: 3 audio, 1 cv.PICO DSPDrum BusS&HMixerEffect: Pitch Shift DelayINaudioCVcvOUT LaudioOUT RaudioOutaudioOutcvLaudioRaudio11. stepped pitchaudiocv
Leslie on organ patch
VCO sum → IN · Effect: Leslie · LFO → CV for accel/decel rotation
▸ Show diagram
Patch diagramPatch diagram with 4 modules and 4 connections. Modules: PICO DSP, VCO, LFO, Mixer. Signals: 3 audio, 1 cv.PICO DSPVCOLFOMixerEffect: LeslieParam 2: HP filter lowINaudioCVcvOUT LaudioOUT RaudioOutaudioOutcvLaudioRaudio11. rotation speedaudiocv
★ Saturated cave reverb
Mono mix → IN · Effect: Saturated Reverb · Wet high · Param 2 (time) max
▸ Show diagram
Patch diagramPatch diagram with 3 modules and 3 connections. Modules: PICO DSP, Mixer, Output. Signals: 3 audio.PICO DSPMixerOutputEffect: Saturated ReverbWet/Dry: 3 o'clockINaudioOUT LaudioOUT RaudioSendaudioLaudioRaudioaudio
Bitcrush with envelope
Drum → IN · Effect: Overdrive/Bitcrush · Env → CV for transient-triggered drive
▸ Show diagram
Patch diagramPatch diagram with 4 modules and 4 connections. Modules: PICO DSP, Drum, Env, Mixer. Signals: 2 audio, 1 cv, 1 trigger.PICO DSPDrumEnvMixerEffect: OD/BitcrushINaudioCVcvOUT LaudioOutaudioTrigtrigTrigtrigOutcvInaudioaudiocvtrigger

Behaviors

Effect selection centre button press

Each press advances to the next of the eight effects. The panel LED changes colour to indicate the active slot. Parameters 1 & 2 adopt the selected algorithm's mapping immediately.

Granular freeze Granular Delay · Parameter 1 fully CW

In Granular Delay, pushing feedback to maximum freezes the buffer and scans it as a continuous loop — useful for sustained drones and stutter effects from short input bursts.

Stereo from mono Stereo Delay / Leslie / reverbs

Several algorithms build a stereo field from the mono input: Stereo Delay ping-pongs, Leslie pans rotating highs, and the reverbs decorrelate wet tails.

CV-only automation CV → CV input

Only Parameter 1 accepts CV. Modulating it with an LFO gives rhythmic time-stretching on delays, pitch wobble on Pitch Shift Delay, or rotary sweeps on Leslie.

Controls

per-effect Parameter 1 First effect parameter, routed to each algorithm's primary feel (time, pitch, rotation, drive). Accepts CV.
Delays: time · Pitch Delay: pitch · Granular: feedback (freeze at max) · Reverb: time · Leslie: rotation speed · OD/Bitcrush: overdrive
per-effect Parameter 2 Second effect parameter, no CV input. Typically feedback or tone.
Delays: feedback · Pitch Delay: time · Granular: time · Reverb: tone · Leslie: HP filter · OD/Bitcrush: bitcrush
global Wet/Dry Blend between dry input and wet effect. Available on every algorithm.
CCW: fully dry · CW: fully wet
global Effect button Centre button cycles through the eight effect algorithms. Coloured LED indicates the active effect.
8 effects · LED colour per slot

I/O

IN · 2

  • IN ±10V audio AUDIO
    Mono audio input. Clipping LED warns when level approaches digital ceiling.
  • CV ±5V CV
    CV input modulating Parameter 1 of the currently selected effect.

OUT · 2

  • OUT L ±10V
    Left channel of the stereo effect return. On mono effects carries the same signal as R.
  • OUT R ±10V
    Right channel of the stereo effect return. Stereo Delay, Leslie and reverbs produce genuine stereo spread.