Eurorack Reference

Mutable Instruments / mutable-instruments/plaits

Plaits

Macro-oscillator with 16 synthesis models (two banks of 8), internal LPG and envelope, V/Oct tracking, and model selection CV. Each model exposes HARMONICS, TIMBRE, and MORPH controls with an AUX output carrying a variant or by-product signal. [10]

Specifications

HP
—
Depth
—
+12V
50 mA
−12V
5 mA
+5V
—
Last verified
2026-05-02

Capabilities

  • Drum Synthesis drum-synthesis
  • Envelope Generator envelope-generator
  • Low-Pass Gate lpg
    Internal low-pass gate opened by LEVEL CV or struck by TRIG. Response adjustable from VCFA to VCA; ringing/decay time also adjustable. Disabled for physical and drum models. [10]
  • Speech Synthesis speech-synthesis
  • Voltage-Controlled Oscillator vco
    Plaits provides 16 synthesis models (two banks of 8) including virtual-analog, waveshaper/wavefolder, FM, formant, additive, wavetable, chord, speech, granular, noise-filtered, particle noise, modal/string resonator, and drum models. [10]

Jacks (10)

Inputs (8)

NameSignalVoltageDescription
FM CV cv — [10]
HARMONICS CV cv — [10]
LEVEL cv — Opens the internal low-pass gate to simultaneously control amplitude and brightness of output signal. Also acts as an accent control when triggering physical or percussive models. [10]
MODEL cv — Model selection CV input. Modulation causes two LEDs to light: one steady for current model, one blinking for central (0V) value. When trigger input is patched, model changes occur only on trigger. [10]
MORPH CV cv — [10]
TIMBRE CV cv — [10]
TRIG trigger — Trigger input serving four purposes: triggers internal decaying envelope, excites physical/percussive models, strikes internal LPG (unless LEVEL is patched), and samples/holds MODEL CV value. [10]
V/OCT cv — Controls the fundamental frequency of the sound, from -3 to +7 octaves relative to the root note set by the coarse frequency knob. [10]

Outputs (2)

NameSignalVoltageDescription
AUX audio — Carries a variant, sidekick, or by-product of the main signal produced on OUT. Content varies by synthesis model. [10]
OUT audio — [10]

Parameters (11)

NameTypeRangeMin FWBehavior
FM attenuverter knob — — Attenuverter for FM CV input. When FM CV is unpatched and TRIG is patched, adjusts modulation amount from internal decaying envelope generator. [10]
FREQUENCY knob — — Coarse frequency control. By default covers 8 octaves; can be narrowed to 14 semitones via the FREQUENCY knob range setting. [10]
FREQUENCY knob range menu_setting — — Hold second model button and turn HARMONICS knob. First 8 settings correspond to C0 +/- 7 semitones through C7 +/- 7 semitones. Last setting (all LEDs lit) is the full 8-octave range from C0 to C8. [10]
HARMONICS knob — — Model-dependent tone control. In general controls the frequency spread or the balance between the various constituents of the tone. Also used to adjust FREQUENCY knob range when holding second model button. [10]
LPG decay / envelope decay menu_setting — — Hold first model button and turn MORPH knob to adjust ringing time of the LPG and decay time of the internal envelope. Represented by 4 yellow LEDs. [10]
LPG response menu_setting — — Hold first model button and turn TIMBRE knob to adjust LPG response from VCFA to VCA. Represented by 4 yellow LEDs. [10]
MORPH knob — — Model-dependent tone control. In general explores lateral timbral variations. Also used to adjust LPG ringing time and internal envelope decay time when holding first model button. [10]
MORPH attenuverter knob — — Attenuverter for MORPH CV input. When MORPH CV is unpatched and TRIG is patched, adjusts modulation amount from internal decaying envelope generator. [10]
Model selection buttons button — — Each button cycles through a bank of 8 models. The second bank is focused on noisy and percussive sounds. Hold button for combo settings (LPG, frequency range). [10]
TIMBRE knob — — Model-dependent tone control. In general sweeps the spectral content from dark/sparse to bright/dense. Also used to adjust LPG response when holding first model button. [10]
TIMBRE attenuverter knob — — Attenuverter for TIMBRE CV input. When TIMBRE CV is unpatched and TRIG is patched, adjusts modulation amount from internal decaying envelope generator. [10]

Firmware history (1 versions)

VersionReleasedNotes
5.0 2019-04-02 [11]

References (2)