
belt-alchemy
Hype17/100Belt for the Hermetic Alchemy Lab V2: vocal pitch correction and harmony, with USB audio, Launchpad / Launch Control XL / Haute42 control and SD-card firmware switching
belt-alchemy is custom firmware for the Hermetic Modular Alchemy Lab, by @timncox. Latest release v0.2.0 (September 2026).
forHermetic Modular Alchemy Lab·by@timncox
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belt_alchemy.bin· 341 KB
Custom license· timncox/belt-alchemy·timncox.github.io/belt-alchemy/·downloads come from the creator’s GitHub releases
v0.2.0Belt 0.2.0 (beta)Latest1 file
Belt 0.2.0 for the Hermetic Alchemy Lab V2 — beta.
Download
belt_alchemy.binbelow. Manual: https://timncox.github.io/belt-alchemy/What's new since 0.1.0:
- USB audio interface (Settings → USB port → Audio): 2 in (J1/J2) and 2 out (J9/J10) at 48 kHz / 24-bit, no driver on macOS; the engine is bypassed in this mode.
- Controllers (USB port → Launchpad), through a powered USB-C hub/dongle: Novation Launchpad Mini MK3, Launch Control XL, and a Haute42 (or other GP2040-CE pad) in XInput mode, up to three at once.
- Haute42 punch effects: every button holds an effect while pressed.
- The USB mode is one setting for every firmware on the card (
/alchemy/usb.cfg); hold B1 at power-up for Mac mode once.
Install:
- Hold B3 at power-on (update mode), then flash the .bin with Hermetic's web programmer or
dfu-util -a 0 -s 0x90040000:leave -D belt_alchemy.bin. - For firmware switching from the card, put all three — Mark, Smack, Belt — in
/alchemyon the microSD card and pick from Settings.
Before you install:
- V2 only.
- Belt keeps its working state in preset slot 14: anything saved there by another firmware is overwritten when Belt first saves.
- Played on one module so far; USB audio tested on macOS only. Custom firmware — Hermetic Modular did not write or test it; please report problems as issues here, not to them.
SHA-256:
64720ddaa1f5078f2cc6c9e899b915639c342dedc364b6a1e24effdb9e4c3986