2b294d7fa4
The review UI's language dropdown did nothing: every selection kept rendering the English text. Two independent causes, both fixed. 1. The translations were never being read. The pipeline's `utterance_translations` table holds one row in Deal Hunter, and that row stores the *English* text under a `zh-Hans` code. The real translations live in the on-disk sample files under `samples/translations/`. `umbraaudio/translations.py` now resolves both sources and merges them by (chapter_id, utterance_index): the table wins where it holds a real translation, the sample files fill the gaps. A candidate whose text is identical to the source is a placeholder, not a translation, so it is ignored - otherwise the page would show English under a Chinese heading and claim it was translated. 2. The query that read them was broken. `language_routes.py` selected `u.index` and `u.speaker`; the columns are `utterance_index` and `speaker_name`, so every read raised `sqlite3.OperationalError: near "index": syntax error` and `/language-mockup` returned 500. It also opened `<project>/project.db` - a 0-byte decoy - instead of `<project>/.umbra/project.db`, the file that actually holds the data. Also in this commit: * The chapter review page honours `?lang=`, remembers the choice in a cookie (set by a middleware, so it survives on every page), and shows the selected language's *name* in the "has not been translated yet" message. * The page now shows the translation, not the source, and the edit box is bound to the source text so saving cannot overwrite the English with the Chinese. * The stray language selector that sat after `</html>` in base.html is gone; the chapters-list page's dropdown had zero options because the route never passed the language list. * The language tag is wired into generation: `utterance.language_code` (NULL = project source language) reaches `engine.generate()` and the staleness marker, so a retagged line is re-rendered instead of keeping English phonology behind an unchanged text. The marker records the language; a marker written before the tag existed means English, so the ~4,300 existing clips are not invalidated. * `project.source_language` (spec 31 section 13.1) records the book's own language, with a migration for existing project DBs. * A scene-break marker deliberately records no language: it is silence, identical in every language, and tagging it would claim a phonology the audio does not have. Tests: 883 passed / 8 failed - the same 8 pre-existing failures (2 test_pronunciation, 6 voice_profile_manager accent). 26 new tests cover the resolver and the generation wiring. ruff introduces no new findings.
UmbraAudio Specifications
Index of all specification documents for the UmbraAudio audiobook generation system.
Specifications
| File | Topic | Description |
|---|---|---|
| 00-project-overview.md | Architecture | Pipeline overview, tech stack, data layout |
| 01-parsing.md | Pass 1a | EPUB, PDF, TXT, MD manuscript parsing |
| 02-analysis.md | Pass 1b | BookNLP, character profiling, pronunciation |
| 03-voice-design.md | Pass 2 | Per-character voice reference generation |
| 04-mapping.md | Pass 3 | Text segmentation, speaker attribution, manifests |
| 05-generation.md | Pass 5 | Audio generation, caching, retry, CUDA management |
| 06-normalization-watermarking.md | Post-gen | Audio normalization, ACX compliance, Perth watermark |
| 07-assembly-export.md | Export | M4B, MP3, WAV export via FFmpeg |
| 08-database.md | Database | SQLite schema, entity relationships, CRUD API |
| 09-web-review-ui.md | Web UI | FastAPI + HTMX review interface |
| 10-cli-orchestrator.md | CLI | Click commands, full pipeline orchestration |
| 11-configuration-dependencies.md | Config | Pydantic settings, dependencies, build system |
| 12-quality.md | Quality | MOS, WER, consistency, ACX compliance |
| 18-UmbraTrans.md | Multilingual | Meaning-preserving translation, target voices, and multilingual audiobook production |
| 19-enterprise-control-plane.md | Enterprise | Multi-tenant projects, access control, artifact lineage, and commercial voice library |
| 20-enterprise-database-integration.md | Enterprise DB | Shared-PostgreSQL contract, blockers, cutover phases P1-P4 |
| 21-umbra-system-nodes-tasks-and-changes.md | System | Worker nodes, task assignment, cross-product change management, UI topology |
| 22-releases-and-the-publish-flag.md | Release | The publish flag, pinned artifact sets, post-publication change, and the Deal Hunter lesson |
| 23-speaker-duplicate-detection.md | Speakers | Duplicate-speaker scan, approval-safe merging, and the crowd veto |
| 24-analysis-quality-plan.md | Analysis | Why the ch6 speakers were missed, and a ranked plan to improve attribution |
Quick Reference
Pipeline Passes
1a: Parse → chapters table
1b: Analyze → characters, pronunciation_guide
2: Voices → voice_ref WAVs
3: Map → manifests/*.json
4: Test → sample audio (optional)
5: Generate → audio/*.wav, audio_normalized/*.wav
Export → export/*.m4b, *.mp3
Key Entry Points
| Component | File | Class/Function |
|---|---|---|
| CLI | cli.py |
main Click group |
| Pipeline | orchestrator.py |
run_pipeline() |
| TTS | voices/chatterbox.py |
ChatterboxEngine |
| Segmenter | mapping/segmenter.py |
Segmenter |
| Generator | generation/chapter.py |
ChapterGenerator |
| Normalizer | assembly/normalize.py |
AudioNormalizer |
| Web UI | web/__init__.py |
create_app() |
| Database | database.py |
Database |