6429f37b11
The Author voice lab committed 45 sample renders (25 MB) plus the six-file reference chain. Those are binaries and every one of them is regenerable from the scripts sitting beside them, so tracking them buys nothing and costs a git-ls-files full of audio. Tracked deliberately: backup/author_voice_lab/FINDINGS.md the measurements and the reasoning backup/author_voice_lab/*.json results + cliff verification backup/author_voice_lab/scripts/*.py everything that produces the audio backup/author_voice_matrix/*.pt the vmatrix itself (62 KB, load-bearing) backup/author_voice_matrix/manifest.json SHA-256 + provenance per file backup/author_voice_matrix/RESTORE.md how to put it back Ignored: backup/author_voice_lab/wav/ wav_cliff/ 25 MB of renders backup/author_voice_matrix/**/*.wav the reference chain, 25 MB Note this only stops future tracking. The 45 WAVs are already in history from the earlier commit, so they stay in the tree until removed with `git rm -r --cached backup/author_voice_lab/wav backup/author_voice_lab/wav_cliff` and committed -- which is deliberately left as a separate, explicit step rather than folded in here, since it changes what a checkout contains.
UmbraAudio
Quality-first multi-pass audiobook generation from English manuscripts.
Features
- 5-pass pipeline: Analysis → Voice Design → Mapping → Test → Generate
- Multi-engine TTS: Chatterbox (primary), Qwen3-TTS (secondary)
- LLM-enhanced: BookNLP for NLP, LLM for profiling/emotion/pronunciation
- Web review: FastAPI + HTMX at checkpoints for human approval
Quick Start
python -m umbraaudio.cli init <manuscript.epub> --name 'My Book'
python -m umbraaudio.cli analyze
python -m umbraaudio.cli voices
python -m umbraaudio.cli review
Requirements
- Python 3.11+
- NVIDIA GPU with CUDA support (RTX 3060 or better recommended)
- ffmpeg
Development
pip install -e ".[dev]"
ruff check umbraaudio/
pytest tests/ -v
Commit cadence: commit at least once every Sunday. Never leave a week (let alone a month) of work uncommitted — a single accidental
git checkouton 2026-09-20 wiped out a month of changes toumbraaudio/web/routes.py. SeeAGENTS.md→ Commit Cadence.
scripts/commit_check.sh enforces the nudge: it exits non-zero once the tree has been dirty
longer than a week. The LaunchAgent com.umbraaudio.commitcheck runs it every Sunday at
18:00 and posts a macOS notification when there is uncommitted work.
scripts/commit_check.sh # warn if dirty > 7 days
scripts/commit_check.sh --days 3 # tighter threshold
scripts/commit_check.sh --any # warn on any uncommitted change
Rebuilding from source
The repo tracks source only; large runtime data is reconstructed as needed.
-
Models: weights are not committed (see
.gitignore). Download them:bash scripts/download_models.sh # ~9 GB, targets ./models -
Qwen3-TTS is a git submodule pinned to upstream commit
022e286:git submodule update --init --recursiveThe
tts_server/web-demo backend includes a local UI customization toqwen_tts/cli/demo.py. It is preserved as a patch — reapply it after checking out the submodule:cd Qwen3-TTS && git apply ../scripts/qwen3_tts_demo_umbra_patch.patch -
Environment: copy/keep
.env(contains secrets) and setUMBRA_TTS__*model paths undermodels/.
Book projects (e.g. DealHunterShip_...) are committed separately under their
own project directories and are not part of this program repository.