Les

FM-1 firmware · 1.3.0

Ravel

An eight-track sound design groovebox with synth, struck and drum machine tracks that trigger, excite and modulate one another through an influence grid.

Made by
De-Pattern
Released
October 30, 2026
Install
On the FM-1 Firmware Hub · source on GitHub
Scan
Not scanned yet What we checked
Last checked
October 31, 2026

What Ravel does

  • Four synth tracks carry thirteen engines, including virtual analog, a full Casio CZ, four-operator FM, wavetable, physical models, organ and tines.
  • Strike tracks hit resonant bodies with exciters, and any track can become a drum machine with 33 machines in four families.
  • Each track sequences in STEPS or GRAPH mode, with parameter locks, microtiming, ratchets, conditions, chance and a EUCLID page.
  • An 8 by 8 influence grid lets any track modulate, trigger, excite, ring, clock or spark any other.
  • Shared buses give you a granular tape delay, a 12-bit space, a feedback loop and a dusty BED.
  • Two LFOs, dust, an eight-slot matrix and four macros move parameters; hold LFO and turn KNOB 1 to 4 to ride macros.
  • Save whole projects into 32 slots and your own sounds into four banks, with 16 scenes and a 32-row arrangement.
  • MIDI notes, clock, mod wheel, aftertouch and pitch bend come in over USB and the TRS jack.

Its modes

HOME
See all eight tracks at a glance, set each track's kind and engine, and draw the influence grid.
EDIT
Shape the current track's voice: engine source pages, pitch, filter, skin, insert, mix and sends.
ENV
Set how a note starts, holds and ends, plus the FILTER ENV and the library of step envelopes.
LFO
Build modulation with the matrix, the two LFOs, dust and the four macros.
FX
Dial in the shared buses: delay, space, BED, feedback and master, with each track's send.
SCL
Choose root, scale, transpose and the track's note interval.
ARP
Turn on the current track's arpeggiator and set mode, rate, octaves, hold, gate, repeat and chance.
SEQ
Write steps, tempo, timing, ratchets and track settings, or draw the graph and its two playheads.
GLO
Mix tracks, set the clock and MIDI in, launch scenes, build the arrangement and watch the load.
SAVE
Store and load projects in 32 slots, and keep your own sounds in four banks.

What Les checked

Ravel

StatusNot scanned yet

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