CHOMPI-Pipes
Rising72/1006 voice organ emulator for CHOMPI
CHOMPI-Pipes is custom firmware for the CHOMPI Club CHOMPI, by @lnetzel. Open source under MIT, latest release v1.0.0 (October 2026), 1 star on GitHub.
forCHOMPI Club CHOMPI·by@lnetzel
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CHOMPI_PIPES_1.0.bin· 186 KB
MIT· lnetzel/CHOMPI-Pipes·downloads come from the creator’s GitHub releases
v1.0.0CHOMPI PIPES - A six voice four-pipes organ emulatorLatest1 file
Polyphonic organ firmware for the CHOMPI hardware: 6 voices x 4 pipe registrations (8', 4', 2 2/3', 2')
Watch walkthrough: https://youtu.be/l5QzJgR7u2c
Features:
- per-pipe levels
- per-pipe tonewheel-style Character
- per-pipe octave setting
- per-pipe attack & release
- hammond-style percussion on the Play/Pause key
- latch function on Loop-key
- keyboard octave shift (as seen in CHOMPI-Wave)
- fuzz distortion with a tone control
- a Rotary-speaker stage
- global 5 Hz pitch vibrato (with delay setting)
- a warm stereo BBD-inspired delay that can go into self oscillation
- a compact vintage-1960s-inspired plate reverb
- a Modulation Mode that drifts each pipe's volume, character, pitch slowly and independently. Also distortion level and delay levels can be independently modulated.
- 15 SD-card preset slots, stored in /Pipes folder (managed as seen in CHOMPI-Tape workflow)
- Included is also a simple recorder where you can record jams directly to the SD card as 48kHz, 16 bit *.wav files, stored in /Pipes/Recordings folder
- Full midi implementation for all preset parameters + program change for presets
- Aux in/Line in mixed with sound engine (not routed through effects but can also be recorded)
Installing Smooth USB install via https://ugrossek.github.io/CHOMPI/ or the manual way by copying the bin file to the root of the SD card.
Full Description in https://github.com/lnetzel/CHOMPI-Pipes/blob/main/README.md
Full Changelog: https://github.com/lnetzel/CHOMPI-Pipes/commits/v1.0.0