FM1 DRUM OS 1.0.0

FM1 DRUM OS v1.0.0 — Initial Release

The first public release of FM1 DRUM OS, a drum-focused sampler and sequencer firmware for the M-VAVE FM-1.

Built for hands-on beatmaking, FM1 DRUM OS brings expressive sequencing, custom samples, dedicated drum effects and a browser-based editor to the FM-1.

Highlights

• 8 drum lanes with independent sample assignments and controls.
• 55 built-in drum samples and 16 user sample slots.
• 64-step sequencer with unquantized recording, swing, microtiming, ratchets and adjustable quantization strength.
• Live recording with overdub, replace, count-in and metronome.
• 8 lane effects and 6 master effects.
• 6 factory kits, 4 user kits and 4 project slots.
• Autosave with project recovery after power cycling.
• USB MIDI / SysEx support.
• Web Editor for editing kits, patterns, effects and importing custom WAV samples.

Web Editor

[Launch FM1 DRUM OS Web Editor](https://skufee.github.io/fm1-drum-os/)

Import WAV files, automatically convert and trim them for the FM-1, preview samples, upload them to the device and manage your sample library directly from Chrome or Edge.

Installation

Download the .fwsc firmware file from the assets below and follow the [firmware update guide](https://github.com/skufee/fm1-drum-os/blob/main/docs/FIRMWARE_UPDATE.md).

Back up your projects and user samples before flashing. Custom firmware is installed at your own risk.

Compatibility

Designed for the M-VAVE FM-1. The Web Editor requires a browser with Web MIDI and SysEx support.

Credits

Based on the open-source SLOOP/Felucca firmware work. Original authorship, licensing information and third-party notices are preserved in the repository.

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Thanks to everyone contributing to the FM-1 community. Have fun making beats!