A Shrek-themed multi-effect: a braying donkey playing a rusty banjo in a swamp while eating a bitcrushed pickle. Four stacking layers — banjo twang, EE-AW donkey formant bray, bitcrush/acid pickle, and dark swamp reverb — blended by the Layers knob (ogres have layers), plus a screaming Dragon oscillator.
Swamp Donkey
Terrarium + Daisy Seed · Mono
The braying swamp on Terrarium hardware: the four stacking layers — banjo twang, EE-AW donkey formant bray, bitcrush/acid pickle, and dark swamp reverb/wobble — blended by the Layers knob, on four simple two-position switches. Adds Dragon mode, a screaming feedback oscillator that grows the longer you sustain. No waffles, Farquaad, glitch, or MIDI on this platform.
How the layers work: "Ogres have layers. Onions have layers." Each effect is a layer with its own knob. The Layers knob gates how many are active — at 0 only the loudest single layer plays, and as you turn it up the rest fade in one at a time in the order banjo → donkey → pickle → swamp. Turn it to full and the whole swamp piles on at once.
Switches
Switch
Function
SW1
Donkey voice — off = classic bray / on = talking donkey
SW2
Pickle style — off = dill / on = ghost pepper
SW3
FSW2 mode — off = swamp blast / on = onion layer stacker
SW4
Dragon mode on/off — screaming feedback oscillator that grows on sustain
Footswitches
Switch
Action
FS1
Bypass.
FS2
FSW2 — "GET OUT OF MY SWAMP" momentary reverb blast (SW3 off), or onion layer tap (SW3 on).
FS1+FS2
at power-up — DFU bootloader.
Usage tip: SW1 off with Donkey past noon and Layers low gives a clean bray; raise Layers to fade in twang, crunch, and swamp. Flip SW2 on for ghost-pepper acid, flip SW4 on and hold a chord to wake the Dragon. Hold FS2 with SW3 off for a momentary swamp bomb.
LEDs
LED 1 (left): Engaged (not bypassed).
LED 2 (right): FSW2 active; in Onion mode blinks the current layer count.
Swamp Donkey
WOOF v3 + Daisy Seed · Stereo · MIDI · Expression
Think Donkey eating a pickle while playing a banjo. In a swamp. That's the whole pedal. The Swamp Donkey is four stacking effect layers — because, as a great ogre once explained, ogres are like onions, and onions have layers, and so does this. BANJO adds a plucky transient and a bright metallic comb twang. DONKEY runs a three-band formant filter that sweeps "EE → AW" on every pick attack, so your guitar brays. PICKLE demolishes the signal with a bitcrusher and a sour 303-style acid filter. SWAMP drowns the whole thing in a dark, muddy reverb with a slow underwater wobble. The Layers knob decides how many of them stack at once — from one polite effect to the full braying swamp.
Signal Chain
Input → Banjo (transient pluck + comb twang) → Donkey (EE-AW formant bray) → Pickle (bitcrush + acid squelch) → Swamp (dark reverb + modulated delay wobble) → global FX (Farquaad / Waffles / Dragon) → Volume → output. Each stage's depth is its own knob multiplied by a Layers gate, so the chain fades from clean to chaos as you stack layers on.
Knobs
Knob
Function
Behavior
KNOB 1
Volume
Output level (0–2×).
KNOB 2
Donkey
Formant bray intensity. 0 = just your guitar; full = a complete "EE-AW" donkey transformation on every note. The vowel-sweep speed follows your pick dynamics — hit harder, bray faster.
KNOB 3
Pickle
Crunch amount. 0 = clean; full = absolutely demolished bitcrushed acid squelch. Combines sample-rate reduction (down to ~4 kHz) and bit-depth reduction with a resonant acid-filter sweep.
KNOB 4
Banjo
Twang amount — comb-filter depth plus transient pluck shaper. 0 = normal attack; full = everything sounds like it was played on a rusty banjo.
KNOB 5
Swamp
Reverb/delay mix. 0 = dry; full = drowning in a muddy swamp. Deliberately dark and murky with a slow ~0.3 Hz modulated wobble.
KNOB 6
Layers
"Ogres have layers." Crossfade that sets how many stages are active. At 0, only the single loudest layer (per knobs 2–5); as you turn up they fade in one at a time — banjo → donkey → pickle → swamp — until at full everything stacks. Dial in exactly how much swamp you want.
3-Position Toggles
SW1 — Donkey Voice
CenterTalking donkey — random vowel shapes, like Donkey will not shut up the entire car ride.LeftClassic bray — clean "EE-AW" sweep on each note.RightWailing donkey — slower, more dramatic vowel sweeps with vibrato.
SW2 — Pickle Style
CenterKosher pickle — medium crunch, more sour (deeper crush, more resonant filter).LeftDill pickle — mild crunch, subtle acid.RightGhost pepper pickle — MAXIMUM crush and screaming resonance. Not for the faint of heart.
SW3 — FSW2 Mode
Center"I'm making waffles" — momentary octave-up with the donkey bray cranked. Annoying, bright, in-your-face. Donkey at his most excited.Left"GET OUT OF MY SWAMP" — momentary full-wet reverb blast with extra feedback. Hold it and everything drowns; release and it trails off.Right"Onion mode" — latching. Each tap peels on another layer: banjo → donkey → pickle → swamp → back to dry.
DIP Switches
DIP
Function
DIP 1
Fairy-tale glitch — random buffer stutters like a scratched DVD of Shrek, triggered probabilistically on pick attacks.
DIP 2
Lord Farquaad mode — pitch-shifts everything down an octave. Everything sounds lower and more menacing (he's compensating).
DIP 3
Dragon mode — a screaming feedback oscillator that pitch-tracks your note and fades in the longer you sustain. The longer you hold, the more it screams (Dragon's singing voice).
Triggers a character when DIP 4 is on — low = Shrek, mid = Donkey, high = Fiona; velocity = intensity.
Expression Jack
Defaults unmapped — suggested target: KNOB 6 (Layers) to foot-swell from one effect into the full swamp, or KNOB 5 (Swamp). Assign via FS1+FS2 0.5 s Set Mode.
Usage tip: start with everything down and Layers at 0, turn up just Donkey, and pick — that's the bray. Bring Layers up to noon and the banjo twang and pickle crunch fade in behind it. Past 3 o'clock the swamp swallows everything. For the full Far Far Away experience: all four knobs at noon, Layers maxed, SW2 on Ghost Pepper, DIP 3 (Dragon) on, and hold a note until it screams. Hold FS2 with SW3 on "GET OUT OF MY SWAMP" for a reverb bomb.
LEDs
LED 1: Bypass status (engaged).
LED 2: FSW2 active. In Onion mode it blinks a count of the current layer stack.
Swamp Donkey
Hothouse + Daisy Seed · Mono · 3-position toggles
The braying swamp on Hothouse hardware: the same four stacking layers — banjo twang, EE-AW donkey formant bray, bitcrush/acid pickle, and dark swamp reverb/wobble — blended by the Layers knob, with the donkey voice, pickle heat, and footswitch mode folded into three 3-position toggles. No DIPs or MIDI (Farquaad, Dragon, glitch, and MIDI Shrek are dropped). Footswitches follow Hothouse convention — FS1 is FSW2, FS2 bypasses.
How many layers stack: 0 = the loudest single layer; full = all four (banjo → donkey → pickle → swamp).
3-Position Toggles
TOGGLE 1 — Donkey Voice
UpClassic bray — "EE-AW" sweep on each note.MiddleTalking donkey — random vowel shapes, won't shut up.DownWailing donkey — slow dramatic sweeps with vibrato.
TOGGLE 2 — Pickle Style
UpDill — mild crunch, subtle acid.MiddleKosher — medium crunch, more sour.DownGhost pepper — maximum crush + screaming resonance.
TOGGLE 3 — FSW2 Mode
Up"GET OUT OF MY SWAMP" — momentary full-wet reverb blast while FS1 is held.Middle"I'm making waffles" — momentary octave-up + cranked bray.Down"Onion mode" — latching; each FS1 tap peels on another layer.
Usage tip: Donkey at noon with Layers low gets you a clean bray; roll Layers up to fade in the banjo twang, then the pickle crunch, then the swamp. Flip TOGGLE 2 to Ghost Pepper and roll Pickle up for full acid squelch. Hold FS1 with TOGGLE 3 on "GET OUT OF MY SWAMP" to drown everything.
LEDs
LED 1 (left): FSW2 active; in Onion mode blinks the current layer count.
Think Donkey eating a pickle while playing a banjo. In a swamp. That's the whole pedal. The Swamp Donkey is four stacking effect layers — because, as a great ogre once explained, ogres are like onions, and onions have layers, and so does this. BANJO adds a plucky transient and a bright metallic comb twang. DONKEY runs a three-band formant filter that sweeps "EE → AW" on every pick attack, so your guitar brays. PICKLE demolishes the signal with a bitcrusher and a sour 303-style acid filter. SWAMP drowns the whole thing in a dark, muddy reverb with a slow underwater wobble. The Layers knob decides how many of them stack at once — from one polite effect to the full braying swamp.
Synth-optimized: Synth-optimized version with 12 dB input pad for line-level sources. Extended volume range.
Signal Chain
Input → Banjo (transient pluck + comb twang) → Donkey (EE-AW formant bray) → Pickle (bitcrush + acid squelch) → Swamp (dark reverb + modulated delay wobble) → global FX (Farquaad / Waffles / Dragon) → Volume → output. Each stage's depth is its own knob multiplied by a Layers gate, so the chain fades from clean to chaos as you stack layers on.
Knobs
Knob
Function
Behavior
KNOB 1
Volume
Output level, extended to a 0–4× range (extended range for line-level sources).
KNOB 2
Donkey
Formant bray intensity. 0 = just your guitar; full = a complete "EE-AW" donkey transformation on every note. The vowel-sweep speed follows your pick dynamics — hit harder, bray faster.
KNOB 3
Pickle
Crunch amount. 0 = clean; full = absolutely demolished bitcrushed acid squelch. Combines sample-rate reduction (down to ~4 kHz) and bit-depth reduction with a resonant acid-filter sweep.
KNOB 4
Banjo
Twang amount — comb-filter depth plus transient pluck shaper. 0 = normal attack; full = everything sounds like it was played on a rusty banjo.
KNOB 5
Swamp
Reverb/delay mix. 0 = dry; full = drowning in a muddy swamp. Deliberately dark and murky with a slow ~0.3 Hz modulated wobble.
KNOB 6
Layers
"Ogres have layers." Crossfade that sets how many stages are active. At 0, only the single loudest layer (per knobs 2–5); as you turn up they fade in one at a time — banjo → donkey → pickle → swamp — until at full everything stacks. Dial in exactly how much swamp you want.
3-Position Toggles
SW1 — Donkey Voice
CenterTalking donkey — random vowel shapes, like Donkey will not shut up the entire car ride.LeftClassic bray — clean "EE-AW" sweep on each note.RightWailing donkey — slower, more dramatic vowel sweeps with vibrato.
SW2 — Pickle Style
CenterKosher pickle — medium crunch, more sour (deeper crush, more resonant filter).LeftDill pickle — mild crunch, subtle acid.RightGhost pepper pickle — MAXIMUM crush and screaming resonance. Not for the faint of heart.
SW3 — FSW2 Mode
Center"I'm making waffles" — momentary octave-up with the donkey bray cranked. Annoying, bright, in-your-face. Donkey at his most excited.Left"GET OUT OF MY SWAMP" — momentary full-wet reverb blast with extra feedback. Hold it and everything drowns; release and it trails off.Right"Onion mode" — latching. Each tap peels on another layer: banjo → donkey → pickle → swamp → back to dry.
DIP Switches
DIP
Function
DIP 1
Fairy-tale glitch — random buffer stutters like a scratched DVD of Shrek, triggered probabilistically on pick attacks.
DIP 2
Lord Farquaad mode — pitch-shifts everything down an octave. Everything sounds lower and more menacing (he's compensating).
DIP 3
Dragon mode — a screaming feedback oscillator that pitch-tracks your note and fades in the longer you sustain. The longer you hold, the more it screams (Dragon's singing voice).
Triggers a character when DIP 4 is on — low = Shrek, mid = Donkey, high = Fiona; velocity = intensity.
Expression Jack
Defaults unmapped — suggested target: KNOB 6 (Layers) to foot-swell from one effect into the full swamp, or KNOB 5 (Swamp). Assign via FS1+FS2 0.5 s Set Mode.
Usage tip: start with everything down and Layers at 0, turn up just Donkey, and pick — that's the bray. Bring Layers up to noon and the banjo twang and pickle crunch fade in behind it. Past 3 o'clock the swamp swallows everything. For the full Far Far Away experience: all four knobs at noon, Layers maxed, SW2 on Ghost Pepper, DIP 3 (Dragon) on, and hold a note until it screams. Hold FS2 with SW3 on "GET OUT OF MY SWAMP" for a reverb bomb.
LEDs
LED 1: Bypass status (engaged).
LED 2: FSW2 active. In Onion mode it blinks a count of the current layer stack.
