christianandClaude Opus 5
c9eef0672c
Live sermon translation into 100+ languages, running entirely on one Mac per campus: audio in, voice detection, Whisper on the GPU, NLLB-200 in its own process, and a built-in web server the congregation reads from on their phones. No audio leaves the building. This is the source only. What used to sit beside it — 14 GB of speech and translation models, 8 GB of voice bundles, 6 GB of natural voices, the Electron caches, and the app data holding the operator PIN and every service transcript — is machine state and downloaded assets, and stays in the NAS backup where it belongs. The vendored node, cloudflared and Windows ffmpeg binaries are out too (533 MB, re-fetched for packaging); the browser-side runtime beside them is kept, so a checkout still serves the congregation page. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
91 lines
4.5 KiB
Markdown
91 lines
4.5 KiB
Markdown
# Plan — three Spanish variants for live preaching
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## The ask
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Operator, relaying a native Spanish speaker: the Spanish output is Latin
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American, and three variants are wanted — **Latin American, Spain, Mexican** —
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"fine tuned exactly to how it's supposed to be". No native speaker will be
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provided; research from the web instead. Nothing may be left out.
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## Finding 1 — the taxonomy overlaps
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es-MX is INSIDE es-419, not beside it. Their differences are lexical only
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(*computadora/ordenador*, *carro/coche*, *ícono/icono*). es-ES is the one that
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differs GRAMMATICALLY. So the three deliverables are not three equal problems:
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| variant | differs from es-419 by | difficulty |
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|---|---|---|
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| es_419 Latin American | — (this is today's output) | none |
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| es_MX Mexican | word choice | low, deterministic |
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| es_ES Spain | **the whole 2nd-person-plural system** | high |
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Reference editions, so each variant has an authority rather than my preference:
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- **es_ES** → Reina-Valera 1960 (uses `vosotros`) / LBLA
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- **es_419** → NBLA (explicitly uses `ustedes` for Latin America) / NVI
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- **es_MX** → NBLA + Mexican lexicon
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## Finding 2 — why es-ES cannot be a find-and-replace
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Spanish 3rd-person-plural is IDENTICAL for "ustedes" (you all) and "ellos"
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(they). `hablan` is both. So a target-side rule `hablan → habláis` corrupts
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every genuine third-person sentence: "they were there" becomes "you all were
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there". In scripture. Silently. This is the exact failure class the whole
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fidelity effort exists to prevent, so a naive transform is not shippable.
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## Finding 3 — the English source resolves the ambiguity
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This is the key idea and it may remove the need for any model change.
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The ambiguity is unresolvable in the Spanish. It is already resolved in the
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ENGLISH, which we still have:
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"Open YOUR Bibles." -> 2nd person -> ustedes-form -> convert
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"THEY were there." -> 3rd person -> ellos-form -> leave alone
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So: convert to `vosotros` ONLY when the English sentence contains 2nd-person
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address AND contains NO 3rd-person-plural marker. Mixed sentences ("tell them
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that you are loved") are left in es-419 form — which a Spaniard understands
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perfectly, it just reads Latin American. **Conservative by construction: the
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failure mode is "not converted", never "wrongly converted".**
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## Design
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NLLB -> guard -> cache -> [es-419 base]
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|-- es_MX : lexical layer
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|-- es_ES : gated vosotros transform
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`-- es_419: as-is
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Same shape as `pt-variants.js` (por_Latn / por_PT share one NLLB result), and it
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reuses `NLLB_ALIAS` so the extra variants cost no extra inference.
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New pseudo-codes `spa_MX` and `spa_ES`, both aliased to `spa_Latn` at the MT
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boundary only — exactly how `por_PT` already works.
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### es_ES transform components
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1. **Gate** (on the English source): 2nd-person markers present, 3rd-person-plural
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markers absent.
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2. **Pronouns/possessives**: ustedes→vosotros, su(s)→vuestro(s)/vuestra(s),
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les→os, se (reflexive 2pl)→os, a ustedes→a vosotros.
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3. **Verb morphology**: 3pl→2pl. `-an→-áis`; `-en→-éis` for -er verbs but
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`-en→-ís` for -ir verbs, so the verb's class must be known — a table, not a
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rule. Irregulars (ser, ir, tener, hacer, poder, querer, decir, venir, saber,
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dar, ver, poner, salir, traer, oír, haber) need explicit entries.
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4. **Imperatives**: `abran→abrid`, `vengan→venid`, `miren→mirad` — highest
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frequency in preaching and the most audible difference.
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### es_MX layer
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Lexical only. Word-level, no morphology, no gate needed.
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## What must not regress
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- Latency: no extra inference. All layers are string work over a shared result.
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- `applyOverrides` still runs last so an operator pin outranks everything.
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- The English caption and archive keep what was actually said.
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- Voice: `speech-text.js` has Spanish book-name rules (`ES_BOOKS`) that fire on
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`1 Corintios` → `Primera de Corintios`. New variants must not produce forms
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outside that list or the voice reads "uno Juan".
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- Each variant needs its own voice choice — es_ES should get a Castilian voice
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(miro/sharvard, measured male), es_MX the Mexican `ald`.
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## Open questions for the audit
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1. Is the source-side gate actually safe? Where does it misfire?
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2. Verb-table coverage: what fraction of real sermon Spanish is reachable?
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3. Does adding two pseudo-languages break the shared-cache invariant?
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4. Is `vosotros` even wanted? RVR1960 uses it and is read across Latin America.
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5. Does the listener page cope with three Spanish entries in the picker?
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