FreeVox8

May 8, 2026 · View on GitHub

FreeVox8 is a JUCE-based spectral vocoder, ghost-freeze resynthesis, morph, and dynamic spectral masking plugin for vocals, synths, drums, and experimental sound design.

This repository is a standalone plugin source package derived from the FreeEQ8 codebase hygiene patterns, not an EQ rename. The audio path is built around a dual engine: a conservative 128-band realtime-safe spectral vocoder core plus a Spectral Ghost 1024 high-resolution backend scaffold for ghost/freeze and morph resynthesis.

Current feature set

  • 128-band log-spaced spectral envelope vocoder core
  • Spectral Ghost 1024 high-resolution engine option
  • MIDI-controlled internal carrier with saw/sine/pulse/sub blend
  • External-carrier blend from the main input
  • Optional sidechain modulator bus
  • Vocoder, Mask, Ghost, and Morph modes
  • Freeze envelope memory for ghost/frozen textures
  • Formant shift via RT-safe envelope remapping
  • Air/noise excitation for intelligibility and breath
  • Transient Protect macro for consonants and punch
  • Stereo Width macro
  • Quality macro for higher-density tone shaping
  • Atomic spectral display taps for low-cost UI visualization
  • Source validation, release manifest, evidence packaging, and production test docs

Build

JUCE is intentionally not vendored in this source package. Add JUCE as ./JUCE or pass -DJUCE_DIR.

git submodule add https://github.com/juce-framework/JUCE.git JUCE
cmake -S . -B build -DCMAKE_BUILD_TYPE=Release
cmake --build build --config Release

Validate source package

python3 scripts/validate_repo.py

Production gate

This package is source-complete for local JUCE compilation, but public binary release certification still requires:

  1. Release build on target OS.
  2. pluginval strictness 10.
  3. DAW smoke tests in Ableton/Reaper/Logic where applicable.
  4. Factory preset/session restore checks.
  5. Signed/notarized installer or clearly labeled unsigned build.
  6. Attached release evidence pack.

See docs/DSP_GOLDEN_TESTS.md, docs/PLUGINVAL_AND_DAW_TEST_PLAN.md, and docs/PRODUCTION_COMPLETION_MAP.md.

Positioning

https://ffm.bio/no4km87

FreeVox8 — spectral vocoder, ghost resynthesis, and dynamic vocal masking.

SEO keywords: free vocoder plugin, spectral vocoder, vocal resynthesis, vocoder VST3, JUCE vocoder plugin, spectral masking plugin, formant shifter plugin, robot voice plugin, ghost vocal effect, open source audio plugin.