Les

FM-1 firmware · 1.2.1-GW

Pocket GammaWave

A hardware companion to the GammaWave desktop synth: industrial distortion, vowel and scream filters, a four-track tape deck and a 49-genre song generator.

Made by
ShadowTune (GammaWave Audio)
Released
October 26, 2026
Install
On the FM-1 Firmware Hub · source on GitHub
Scan
Scanned, nothing harmful found · Oct 31 What we checked
Last checked
October 31, 2026

What Pocket GammaWave does

  • Eight synthesis engines cover analog, six-operator FM, phase distortion, chip, formant voice, organ, noise and the DRUM-X drum kit.
  • The GENERATOR writes a whole piece in any of 49 genres, and SAVE keeps the ones you like as takes.
  • Each of six tracks holds its own 64-step pattern with length, division, swing, gate and per-step parameter locks.
  • Press REC to record notes and knob moves live, or write steps and chords from the keys while stopped.
  • Store your music into four sections per project, chain them as rows in ARRANGE, and keep eight projects in flash.
  • USB carries class-compliant MIDI and audio, and the TRS jack takes MIDI in and clock.
  • The web editor reaches every parameter, sends FM voice banks and saves a complete backup.

Its modes

HOME
You see the selected track's filter curve over a live spectrum, the Hearth sun and the T1-T6 strip, with the engine's four main knobs.
EDIT
You shape the track's engine, its filter and its voice mode, plus every DRUM-X kit and sound page.
SEQ
You write and reshape the track's steps across pages for notes, timing, components, playheads, automation and MUTATE.
FX
You set the track's drive and sends and the shared slicer, delay, reverb, chorus and master.
GLO
You mix levels, pan and mutes, set tempo, swing, clock and tuning, and pick TRACKS, LOAD and routing.
SAVE
You browse presets, store sounds in user slots and write the music into a project section.
GENERATOR
You make a whole piece from a genre, seed and energy, then keep takes on a reel and build a SET.
MENU
You change display, control, audio and system settings, open calibration and read the load figures.
HYPERSPACE VIZ
You watch four animated scenes pulse with the sequencer while the music plays.

What Les checked

Pocket GammaWave v1.2.1-GWScanned October 31, 2026

What we checked for

  • The file is exactly the one its author published
  • It's the same file we saw when this release first came out
  • It opens cleanly as an FM-1 firmware, nothing damaged
  • It doesn't show up on your computer as a keyboard, mouse or other input device
  • It doesn't show up as a USB drive or network adapter
  • Its text mentions no computer command tools, like PowerShell, Terminal or a download command

What we found

  • MIDI and audio, as expected
  • A serial port, which many FM-1 firmwares keep for debugging. It can't type into your computer.

StatusScanned, nothing harmful found

Les scans every firmware here whose file is public, and shows what it checked and what it found. A scan lowers the risk; it can't rule it out. This firmware is made by its author, not by Les or M-VAVE. Back up first, and install at your own risk. How Les scans firmware

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