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schwung-belt

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Live vocal processor for the Ableton Move (schwung module): autotune, diatonic harmonies, doubler, formant

schwung-belt is custom firmware for the Ableton Move, by @timncox. Latest release v0.2.1 (July 2026), 2 stars on GitHub.

forAbleton Move·by@timncox

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Download v0.2.1

belt-module.tar.gz· 40 KB· +1 file

Custom license· timncox/schwung-belt·downloads come from the creator’s GitHub releases

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41 commits and 5 releases in the last year
Activity · last 12 months
5 releases
  1. v0.2.1Latest2 files

    What's Changed

    Full Changelog: https://github.com/timncox/schwung-belt/compare/v0.2.0...v0.2.1

  2. v0.2.0v0.2.0 — MIDI CC control2 files

    Every Belt parameter now responds to MIDI CC from a controller on the Move's USB-A port: CC 20–35 map to the 16 params, 0–127 scaled per range. audio_fx build hears CCs on any channel; belt-in follows the slot's receive channel. See README for the table. PR #5.

    What's Changed

    Full Changelog: https://github.com/timncox/schwung-belt/compare/v0.1.2...v0.2.0

  3. v0.1.2Belt 0.1.22 files

    Stabilizes Schwung Remote UI parameter editing while preserving Belt audio behavior. Includes Belt and Belt In ARM module archives.

  4. v0.1.1Belt v0.1.1 — stable headroom and Hard Tune state2 files

    Belt and Belt In 0.1.1 correct stereo pan behavior, add output limiting, and make Hard Tune state consistent across DSP, presets, manifests, and UI. Includes native, sanitizer, aarch64, and archive validation.

  5. v0.1.0Belt v0.1.02 files

    First release: live vocal processor for the Ableton Move.

    • Autotune pitch correction (retune 0 = hard-tune, higher = transparent) with Amount, Flex, and Humanize (vibrato preservation)
    • 4 diatonic harmony voices with per-voice detune, wander, and stereo spread
    • Stereo doubler and formant shift (±½ octave)
    • Chain UI: harmony voice pads, HARD punch pad, chromatic tuner strip (press to set key), feedback guard on belt-in
    • Two builds: belt (audio_fx — chain + Master FX) and belt-in (sound_generator with audio_in — live mic/line/USB-C vocals)
    • 14 native sim tests; ~26 ms engine latency

    Not yet hardware-verified — sim-tested only. belt-in-module.tar.gz here is for reference; installers should use timncox/schwung-belt-in.