POCKET GAMMAWAVE (GW-1)

Frederic Valentev1.0-GWUpdated Oct 16, 20263 on GitHub

Alt Firmware
firmware
groovebox

POCKET GAMMAWAVE (GW-1) is alternative firmware for the M-VAVE FM-1 by Frederic Valente, built on JIANT FM and Felucca with SLOOP song arrangement. Eight engines cover virtual analog, six-operator FM, phase distortion, chiptune, formant voice, organ, noise and synthesized drums. VOWEL and SCREAM filters, four additional drive types and Hearth macros expand sound shaping. A 49-genre generator creates patterns and arrangements, while ORBIT and DRIFT mutation modes vary notes and timbre. Its screen combines filter curves, reactive spectra, live scopes and animated visualizers. The browser emulator runs the firmware; a companion Web Studio provides editing, pattern-based tape lanes and WAV export. The tape lanes hold note patterns rather than recorded audio.

License: GPL-3.0-only

Compatible with

FM-1M-VAVE

Links

Source Install in browser Play in browser

Installing third-party firmware can brick your unit and may void its warranty. Back up first and follow the project's instructions.

Reviews

No ratings yet — be the first to rate this patch.

Similar Alt Firmware

Frodhes
firmwaregithub
Frodhes is an electric-piano firmware for the M-VAVE FM-1 that models the mechanics of a Fender Rhodes. Its voice engine simulates a hammer, tine, tonebar and magnetic pickup, with four instrument types: Stage 77, Suitcase, Early Felt and Bell Dyno. A performance page gives the four knobs assignable controls, while dedicated pages expose the voice and effects. The effects chain includes compression, drive, tremolo or wah, phaser, chorus, delay and reverb. Chord mode, scales, an arpeggiator and a pattern recorder with quantization, overdub and undo support playing and recording. It includes twelve factory and sixteen user presets, USB and TRS MIDI, MIDI clock sync and a browser emulator running the firmware as WebAssembly.
Tonitor
firmwaregithub
Tonitor is alternative firmware for the M-VAVE FM-1 by Nuno Zimas, built for electroacoustic experimentation, live ambient music and sound exploration. Six tracks combine independently chosen engines and sounds with free loop recorders, each supporting up to ten overdubs and its own loop length. Four engines cover six-operator FM, gesture-driven lo-fi synthesis, an eight-oscillator instrument inspired by the LYRA-8, and noise, logic operations and manipulated buffers. Generative paths bias new sounds toward ambient or experimental textures. Per-track envelopes, resonant filtering, granulation, bit and sample-rate reduction, and shared effects shape sustained notes and layered gestures. Sixty-four session slots store the performance state. The interface uses large text, high contrast and a distinct colour for each track to support low vision.
MC-1
firmwaregithub
MC-1 is a four-part groovebox firmware for the M-VAVE FM-1 by dspaudio. Three melodic parts combine synthesis and recorded-instrument presets with a separate sixteen-lane drum part. Its sound engines include LA-inspired synthesis, a monophonic acid voice, and synthesized drum kits. Eight melodic voices are shared across the three parts, with six drum voices across the kit. Sixty-four patterns, sixteen-step sequencing, song arrangement, an arpeggiator, and recorded knob movements support composition and performance. Each part sends to two shared effects banks covering reverb, delay, chorus, and flanging. USB MIDI, TRS MIDI input, and stereo USB audio connect it to other gear. A browser emulator runs the shared sound engine and interface.
BEETLE
firmwaregithub
BEETLE is a public-beta six-lane tracker and digital drum machine for the M-VAVE FM-1 by SikkenWorks. Five synth lanes and one drum lane use independent patterns of up to 16 steps, with 48 patterns and song chaining. Synth sounds include virtual-analog, SID-inspired, and NES-inspired instruments, while the drum kit offers editable components. Tracker effects, per-step velocity and gate, copy/paste, undo, and block editing support composition. Live mutes, performance snapshots, punch-in effects, and master EQ, compression, and reverb support performance. A browser simulator lets you explore the workflow. The separate Project Manager handles project backups and restores with experimental transfer-enabled firmware; that build’s hardware validation is pending.
Tuna
firmwaregithub
Tuna is generative music firmware for the M-VAVE FM-1 by delirioux, built on Felucca. A port of Mutable Instruments Marbles supplies randomness that musical rules shape into melody, bass, accompaniment and percussion. Its library spans 86 popular genres, 89 composers and styles, and 93 instruments, with character presets ranging from still ambience to driving rhythms. Controls vary rhythm, pitch, density and overall complexity, while played keys steer roots and chords. Freeze a passage into an editable sequence, add trigger conditions and parameter locks, or save the complete state in sixteen slots. Historical tunings, separate MIDI output channels, reverb and a chord-tuned resonator extend the instrument. A browser emulator lets you try the firmware before installation. Tuna remains in development.
CS-1
firmwaregithub
CS-1 is a CS-80-style synthesizer firmware for the M-VAVE FM-1, designed as a MIDI sound module for a dawless setup. Eight voices each combine two channels with oscillators, PWM, resonant high-pass and low-pass filters, independent envelopes, and velocity and pressure response. Ring modulation, chorus and tremolo, portamento, glissando, and channel detuning extend the sound. Automatic aftertouch curves animate notes without a pressure-sensitive controller, while MIDI learn and clock sync support external sequencers. Stereo tape-style delay, phaser, and plate reverb with shimmer add effects. Factory sounds, user presets, and a browser emulator complete the instrument.
CoralFlower
firmwaregithub
CoralFlower turns the M-VAVE FM-1 into a chord instrument inspired by the Telepathic Instruments Orchid. Chord-type keys transform played roots into chords with an optional independent bass part, using two keyboard layouts and 27 scales. An arpeggiator offers nine patterns, including strumming, while a looper records chord progressions with overdub, undo, and timing correction. Virtual-analog and FM engines provide editable chord and bass sounds. Six reorderable effects shape the output, and USB MIDI sends chord and bass notes on separate channels. A pixel flower or coral grows from the notes you play. It is built on ChoralRoot and Felucca, with a browser version for trying it before installation.
Pigeon
firmwaretheshrimpblimp.com
Pigeon is performance-sampler firmware for the M-VAVE FM-1, built on Felucca. Two song samples and a 16-pad drum kit share the published firmware’s 408 KiB sample pool. Editable chops provide waveform zoom, pitch, envelopes, looping, and latch. A sequencer supports up to 64 steps per track, patterns, arrangement sections, and live recording. A three-track mixer, choke groups, drum rolls, and filter, delay, chorus, reverb, distortion, and compression support performance. Browser tools handle sample preparation and backups, and an emulator lets you try it with your own audio. It is a beta candidate with hardware verification pending; direct recording and resampling are outside its scope.
Noiz Demons
firmwaregithub
Noiz Demons is a Felucca-based FM-1 firmware by SPIKE the Percussionist that turns sound randomization into a themed performance tool. Its per-track Ritual mode selects from 30 demon characters, with each rank controlling how widely parameters can change. A summoning can reroll an entire track, an FM6 patch, or an envelope, LFO, or effects section. Each track displays its own animated sigil that responds to the sound. Summoned sounds can be saved as presets or projects and recorded as automation. Turning Ritual off restores normal editing and graphs. Installation uses a locally built firmware package and the project’s USB-MIDI flashing tool.
winampFM
firmwaregithub
winampFM is a Winamp-inspired alternative firmware for the M-VAVE FM-1 by Hericdk, built on SLOOP 2.6. Its interface turns the sound browser into a playlist, displays four tracks as buttons, and places effects on equalizer-style sliders. Four tracks record loops, while a tape-deck view shows takes and recording levels. Performance controls switch between solo, two-track, three-track and full arrangements, with automatic track changes and held leads. A cassette carousel previews sounds and phrases. Twenty-eight full-screen visualizers react to notes, loops, knobs and effects. The firmware also adds Brazilian instrument sounds and drum kits, and includes a browser simulator that runs the firmware through WebAssembly in a 3D FM-1 model.
MYCELIUM
firmwaregithub
MYCELIUM is alternative firmware for the M-VAVE FM-1 by Lars Knacken / Mandalars, built on Felucca and SLOOP. It focuses on Forest, Psytrance, Goa and Hitech grooves, with original drum assets, custom icons and four factory songs. The supplied source archive includes firmware, update-loader code, asset generators and build documentation. Version 1.0 is a test release: installation and reboot on the project device are documented, while a complete physical listening and controls test remains outstanding. The accompanying MYCELIUM website offers a browser studio, whose sound engine differs from the hardware firmware.
Skiff
firmwaregithub
Skiff turns the M-VAVE FM-1 into a six-track groovebox built on Felucca. Fourteen synth and drum engines share eight voices, with full on-device editing for six-operator FM sounds and animated envelope displays. A sequencer of up to 64 steps supports chords, ratchets, trigger conditions, microtiming, and parameter locks. A shared pattern pool, per-track song lists, and scenes support arrangement and live launches. Performance layers provide staged mutes, effect throws, and momentary effects, while recording supports overdub, step entry, and capturing the last loop played. A browser editor handles sounds, sequences, mixing, projects, and backups over USB MIDI. Skiff also provides stereo USB audio and six screen themes.
OberVave
firmwaregithub
OberVave turns the M-VAVE FM-1 into an eight-voice analog-style polysynth inspired by classic American polyphonic synthesizers. Each voice has two oscillators with hard sync and cross-modulation, a multimode filter with a lowpass-to-highpass morph, two envelopes, and an LFO. Poly, dual, unison, and mono modes include glide, with adjustable vintage drift and stereo spread. An arpeggiator, 32 programs, USB MIDI, chorus, tempo-synced delay, and plate reverb complete the instrument. Built on Dinghy, it is host-tested, but the developer reports that it has not yet been run on an FM-1.
TRIBE
firmwaregithub
TRIBE is a beta alternative firmware that turns the M-VAVE FM-1 into a ten-track groovebox, with any of its 25 engines assignable to any track. Its engines include dedicated kicks, 909- and 808-style drums, and a 303-style synth. Each track has 16 clips, with patterns of 16, 32, or 64 steps, adjustable rates and directions, and swing. Scatter effects can process a track or the whole mix, while two master effects receive individual track sends. Assignable master knobs, an arpeggiator, quantized recording, and a master compressor support performance. A browser emulator lets you play TRIBE without hardware. TRIBE is a fork of X0X, built on Felucca.
ORBIT
firmwaregithub
ORBIT is a four-track groovebox firmware for the M-VAVE FM-1, based on SLOOP and Felucca. Three synth parts and a drum machine share a workflow built around sound editing, Event Tape, and a mixer. Event Tape lets you copy, lift, and rearrange sequencer events. Synth parts share an eight-voice budget across engines including analog, FM, sampling, and granular synthesis. Patterns support up to 64 steps, chords, ratchets, microtiming, and parameter locks. User macros, sample chopping, section chains, insert and performance effects, USB audio, and MIDI extend the instrument. Installation has been verified on an FM-1; hardware timing and recovery testing remain incomplete.
DUELL
firmwaregithub
DUELL is a public-beta alternative firmware by OSCILL/R that turns the M-VAVE FM-1 into a bitimbral synthesizer. Two independent parts have their own sounds, effects, EQ, ducking, and arpeggiators, with split, stereo, and layer modes. A morph control moves between two versions of a patch, while a smart randomizer creates variations. Two envelopes, two LFOs, and an eight-slot modulation matrix expand Felucca’s synthesis engines. Storage includes up to 48 patches, 16 multis, and 16 named patterns. A browser emulator lets you try it without hardware. The developer has run the firmware on one FM-1; broader hardware testing is pending.
Hortator
firmwaredeadactive.github.io
Hortator is beta drum-machine firmware by DEADACTIVE for the M-VAVE FM-1, built on Felucca. Eight tracks combine drum models and samples with a sequencer of up to 64 steps per track, independent lengths, divisions, and swing. Accents, probability, ratchets, live recording, and recorded knob movements shape patterns, while Grids generates mapped or Euclidean rhythms. A track-keyed compressor, two LFOs per track, resonators, distortion, a slicer, and delay, reverb, and chorus support sound design and performance. An ACID bass voice can run on up to two tracks. USB audio and MIDI connect it to other gear. The website lets you play the firmware in a browser. It is untested on most hardware and may be unstable.
Jangada
firmwarezednaked.github.io
Jangada is free, open-source alternate firmware by zednaked for the M-VAVE FM-1, based on Felucca. It focuses on dark industrial textures, evolving drones and Brazilian rhythms. Four tracks share eight voices, with synthesis including superwave analog, six-operator FM compatible with Dexed, physical modeling, granular textures and noise. A modulation matrix, live macro controls and latched drones with evolution and tension controls expand sound design. The sequencer supports chords, ratchets, probability, accents, slides and swing. Industrial and Brazilian drum kits sit alongside tape processing, distortion, insert effects and live punch-in effects. Jangada Studio runs the firmware’s DSP in the browser for playing without an FM-1, while the browser editor provides device control and sequencing. The project is currently alpha; installation and return to stock firmware are documented upstream.
JIANT FM
firmwarejuanjiant-bit.github.io
JIANT FM is free, open-source alternate firmware by juanjiant-bit for the M-VAVE FM-1, based on Felucca with a song system adapted from SLOOP. It combines eight synthesis engines, including analog, six-operator FM, phase distortion, chiptune, formant voice, organ, noise and DRUM-X synthesized drums. DRUM-X morphs between two sound states, while sound randomization and macro controls encourage live experimentation. Its thermal-color interface visualizes each track as an animated organism and displays live graphs for modulation and effects. Sequencing includes parameter locks, ratchets, probability, automation and recordable punch-in effects, with eight songs organized into four sections each. Distortion, delay, chorus and five reverb models extend the sound. A browser emulator and editor are available. The project is in development and has not yet been thoroughly tested on hardware.
Ghoulbox
firmwarejasonpersinger.me
Ghoulbox is free, open-source alternate firmware by Jason Persinger for the M-VAVE FM-1, based on Felucca. It focuses on dungeon synth, dark ambient and medieval fantasy sounds, adding a hurdy-gurdy engine, cathedral-style HALL reverb, cassette-style tape processing and bit/sample-rate reduction. Its curated sounds include choirs, organs, harps, flutes, dark strings, drones and crypt drums. Felucca’s sequencer, song mode, effects, browser editor and backup workflow remain available. Ghoulbox adds dungeon-themed patterns, MIDI CC control and an old-RPG interface with a skull startup screen, sword cursor and animated torches. A prepared scene starts in D minor at 72 BPM. The browser installer connects to the FM-1 over USB and saves a backup before installing.

View all