sloopDX
SLOOP's live workflow around a 6-operator DX7 engine ported from Dexed's msfa, with a resonant filter, 256 SysEx voices, on-device voice editing, programmable FM drums and patterns up to 128 steps.
Brick risk. Flashing this carries a known, documented risk of damaging the device.
- Distribution
- Browser installer (WebMIDI / WebUSB)
- License notes
- Includes the Apache-2.0 msfa core from Dexed; see LICENSING.md.
- Source
- github.com https://github.com/zvenson/dxsloop
- Homepage
- dx7.designburgapps.com https://dx7.designburgapps.com/
- fm
- synth-engine
- sequencer
- drums
- chords
- fx
- usb-audio
- editor
Description
Replaces SLOOP's engines with one DX7 engine (32 algorithms, 99% sample-identical to Dexed per the author), adds an OMNI chord-harp mode and per-effect pages. zp12 and FM-1 Doom build on its platform. The README calls 3.5 a usable beta with an open CPU check for all 14 DX7 voices at once.
Install notes
Browser WebMIDI installer from the project site, with a web editor. Keeps SLOOP-style USB rescue (hold OCT- while powering on).
Version history
| Version | Date | Notes |
|---|---|---|
| 3.5 | 2026-10-10 | Date is the commit adding MIDI Program Change; no GitHub release tag for 3.x (newest tag is v2.6). |
| 2.6 | 2026-10-07 |