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octabam

Firmware for Octatrack MKI / MKII (Elektron)

Modular "remixer" build that adds bus and per-track effects, an FM synth machine, 255 kits per project, USB audio and MIDI, and fixes for stock bugs.

by Sam Banks, Contributors credited per module

ActiveSource: openMIT
Octabam testing round 1 · Sam Banks · via youtube.com · from the authors
Distribution
Patches a stock file you supply
Requires stock
1.40C
License notes
Covers the repository's own code and docs; transcribed third-party DSP sources and carried community modifications keep their own terms.
Source
github.com https://github.com/sambanks/octabam
Homepage
modwerk.app https://modwerk.app/

Description

A modification is a module, a named selection of modules is a remix, and the build composes a remix into a flashable image from your own OS 1.40C: it places the code, wires hooks by symbol, refuses collisions by name and checks every ported module against its author's own build byte for byte. Community mods such as Octatrick, PassOS, midisc and Octaplay are built on it. No firmware is distributed and a built image must not be shared. Pull requests are accepted; issues are disabled.

Install notes

Build from your own stock 1.40C .syx, then flash with Elektron Transfer or from the CF card. Bootloader is not modified.

Version history

octabam version history
VersionDateNotes
REC THRESHOLD (PR #687)2026-10-13Recorder trig that waits for input (THR, LEV, IN).
Outbox 8 support (PR #597)2026-10-05Adds Outbox 8 expander support via USB audio clock SET_CUR handling.
OCTABAM432026-09-21Latest tag.
OCTABAM382026-09-20

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