FM1 Sampler
Android sampler and eight-track looper that uses the FM-1 as keys, knobs, second screen and USB audio output, with a flash page for a control-surface build of M-VAVE's open firmware.
by ferluht
- Distribution
- Prebuilt image you flash yourself
- License notes
- The repository has no top-level licence file. firmware/LICENSE.md, from M-VAVE's FM1 Open, applies GPL-3.0-only with a permission to link the binary SDK, and the Android app and engine carry no licence statement. firmware/sdk/firmware/FM-1_015.fwsc matches M-VAVE's FM-1 V15 image licensed Apache-2.0 (git blob ce49cc1595b67347c68a3ac7463017f9fa8c19dd). KissFFT is BSD.
- Source
- github.com https://github.com/ferluht/fm1-sampler
- Homepage
- github.com https://github.com/ferluht/fm1-sampler
- sampler
- looper
- arpeggiator
- fx
- granular
- sequencer
- usb-midi
- usb-audio
- fork
Description
Rights warning: the samples folder, also packed into the APK, holds 17 WAV files (bass, drums, keys and pads) with no source or licence given. The author's FM1-Lofi repository says of files of the same names that three come from LOOPA kits with the origin still to be confirmed. The phone does the sound. The sampler has six modes (melodic, one-shot, looped, kit with transient slicing, granular and Paulstretch) with envelopes, an LFO, an arpeggiator, send effects, tape-style varispeed and a sidechain mixer, and a looper with overdub. The FM-1 firmware is a copy of M-VAVE's open firmware that forwards its keys, buttons and encoders as MIDI and draws the phone's screens over SysEx. The README says the project is only host-tested: not run on a phone or an FM-1 since the deck redesign.
Install notes
Open FM1-Sampler-Workbench-vX.Y.html from the release to flash the firmware; its rollback restores V15. Then install the debug-build APK on an Android phone (minSdk 23) and connect the FM-1 by USB. Flash the firmware first, since the loop length page needs it. Back up first.
Version history
| Version | Date | Notes |
|---|---|---|
| 0.37 | 2026-11-02 | Cassette-deck phone screen, page pictures, per-mode knobs on the sample page, global send effects and a sidechain mixer; host-tested only. |
| 0.10 | 2026-10-30 | First release; the sampler engine and the control-surface firmware, host-tested only. |