Files
hyperframes/skills/hyperframes-media/references/tts.md
T
WaterrrForeverandClaude Opus 4.8 05af482f22 feat(skills): product-launch-video skill + consolidate motion knowledge into hyperframes-animation (#1745)
* feat(skills): product-launch-video + consolidate motion knowledge into hyperframes-animation

- Add the product-launch-video skill: shot-sequence architecture where each
  visual frame is a time-coded shot sequence picked from a blueprint menu and
  paced to the voiceover (anti-PowerPoint). Includes the frame-worker sub-agent,
  story/visual/motion-design references, and audio/captions/transitions/
  stage-assets/assemble-index scripts.
- Consolidate motion knowledge in hyperframes-animation as the single source of
  truth: promote the updated atomic rules (31 -> 36) and rename product-launch-
  video's archetypes into hyperframes-animation blueprints (13 -> 15, replacing
  the old set). product-launch-video, faceless-explainer, and pr-to-video now
  reference them via ../hyperframes-animation/{rules-index,blueprints-index}.md
  and the rules/blueprints dirs. Fixes the discrete-text-sequence broken links;
  blueprints no longer ship per-id runnable examples, so example references in
  the consumers were dropped.
- Default HeyGen TTS voice to Marcia (deterministic; was the API's first English
  voice, which drifts on catalog re-sort). Override with --voice.
- assemble-index pre-assembly frame guards: auto-repair a sub-comp root missing
  canvas dims; hard-fail on <video>/<audio> inside a sub-comp; hard-fail on a
  timed non-root element missing class="clip" or overlapping same-track clips.
- Lint/CLI: lint media inside sub-compositions as an error; stop false-positive
  caption layout/lint findings; contrast/layout-audit skip elements hidden by an
  invisible ancestor.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(skills): clear CodeQL alerts in assemble-index.mjs

- script/style blanking regex now matches closing tags with trailing
  whitespace (</script >, </style >) — js/bad-tag-filter (high).
- drop the existsSync precheck before reading/repairing a frame file; read
  directly and handle ENOENT, removing the check->write TOCTOU window —
  js/file-system-race (high).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-27 02:51:35 +08:00

136 lines
7.4 KiB
Markdown

# Text To Speech
`npx hyperframes tts` auto-detects a provider from env vars; explicit override via `--provider`.
> **Run the Preflight first — no credential is not a green light to silently use the local voice.** Before generating a voiceover, complete the sign-in **Preflight** (see `../SKILL.md` → Preflight): run `npx hyperframes auth status`, recommend signing in, and **STOP for the user's choice** (sign in for HeyGen voices, or continue offline with local Kokoro). This applies to a one-off "generate a voiceover" request just as much as inside a full workflow.
## Provider chain
| Order | Provider | Env trigger | Voice IDs | Word timestamps | Audio format |
| ----- | ----------------- | ------------------------------------------- | ------------------------------------------- | ----------------------------------------- | -------------------- |
| 1 | HeyGen (Starfish) | `$HEYGEN_API_KEY` / `~/.heygen/credentials` | UUIDs from `GET /v3/voices?engine=starfish` | **Yes** (`word_timestamps[]` in response) | mp3 → wav via ffmpeg |
| 2 | ElevenLabs | `$ELEVENLABS_API_KEY` | UUIDs from elevenlabs.io dashboard | No | mp3 → wav via ffmpeg |
| 3 | Kokoro-82M | always (local fallback) | `am_michael`, `af_heart`, … (54 voices) | No | wav direct |
```bash
# Auto-detect (HeyGen if key set, else ElevenLabs, else Kokoro)
npx hyperframes tts "Welcome to HyperFrames" -o narration.wav
# Pin the provider explicitly
npx hyperframes tts "Hello" --provider kokoro
npx hyperframes tts "Hello" --provider heygen --voice <heygen-uuid>
npx hyperframes tts "Hello" --provider elevenlabs --voice 21m00Tcm4TlvDq8ikWAM
# HeyGen path: capture word timestamps in one call (skips a Whisper pass)
npx hyperframes tts "Hi there" --words narration.words.json
```
## Self-contained HeyGen (no CLI) — `scripts/heygen-tts.mjs`
The published `hyperframes tts` CLI synthesizes locally with Kokoro only. When you
want HeyGen specifically — best quality **plus** word timestamps in one call — use
the skill's bundled script, which calls the HeyGen v3 REST API directly and needs
no CLI provider plumbing:
The script resolves a HeyGen credential the same way the CLI does — first source
wins: `$HEYGEN_API_KEY``$HYPERFRAMES_API_KEY` → a project `.env` (auto-loaded,
walks up ≤5 dirs) → `~/.heygen/credentials` (shared with heygen-cli;
`$HEYGEN_CONFIG_DIR` overrides the dir). An OAuth login is sent as
`Authorization: Bearer`; an API key as `X-Api-Key`. If the only credential is an
expired OAuth token it stops with a hint to run `npx hyperframes auth refresh`.
```bash
# Only needed if you haven't run `npx hyperframes auth login`:
export HEYGEN_API_KEY=... # or put it in a project .env
# Synthesize + capture word timestamps in one call (skips a Whisper pass)
node skills/hyperframes-media/scripts/heygen-tts.mjs \
"Welcome to HyperFrames." -o narration.wav --words narration.words.json
node skills/hyperframes-media/scripts/heygen-tts.mjs ./script.txt -o narration.wav
node skills/hyperframes-media/scripts/heygen-tts.mjs --list # public starfish voices
```
- **Voice:** `--voice <id>` must be a **starfish** voice_id (`--list`, or `GET /v3/voices?engine=starfish`). v2-catalog ids are rejected with HTTP 400. Omit `--voice` (English) and it defaults to **Marcia** (`05f19352e8f74b0392a8f411eba40de1`, a fixed default so the choice is deterministic). Non-English with no `--voice` falls back to the first matching catalog voice.
- **Output:** `.wav` → transcoded to 44.1k mono via ffmpeg; `.mp3` → raw bytes (no ffmpeg needed).
- **Words:** `--words <path>` writes the flat `[{id,text,start,end}]` shape below, drop-in for the captions pipeline. HeyGen's `<start>`/`<end>` boundary sentinels are filtered out and ids are re-contiguous.
- **Non-English:** `--lang <code>` (anything but `en`) is sent as the request `language`.
## When to use which provider
| Goal | Use |
| --------------------------------------------------------- | --------------------------------------------------- |
| Best voice quality + word timestamps in one call | **HeyGen** |
| Drop-in cloud TTS, big voice catalog | **ElevenLabs** |
| Offline, no API key, fast iteration | **Kokoro** |
| Non-English multilingual with deterministic phonemization | **Kokoro** (`ef_dora`, `jf_alpha`, `zf_xiaobei`, …) |
## ffmpeg requirement
HeyGen + ElevenLabs return mp3. The CLI transcodes to wav when `--output` ends in `.wav` (the default and what downstream `ffprobe` + Whisper expect). If you'd rather skip the transcode, pass `-o file.mp3`. Without `ffmpeg` on PATH, `.wav` output from the cloud providers fails — install ffmpeg or use `.mp3`.
## Voice selection (Kokoro)
Default `af_heart`. Curated picks:
| Content type | Voice |
| ----------------- | ---------------------- |
| Product demo | `af_heart`, `af_nova` |
| Tutorial / how-to | `am_adam`, `bf_emma` |
| Marketing / promo | `af_sky`, `am_michael` |
| Documentation | `bf_emma`, `bm_george` |
| Casual / social | `af_heart`, `af_sky` |
Run `npx hyperframes tts --list` for the bundled set.
## Multilingual (Kokoro voice prefix → language)
The first letter of a Kokoro voice ID picks the phonemizer language; `--lang` overrides auto-detection.
| Prefix | Language |
| ------ | -------------------- |
| `a` | American English |
| `b` | British English |
| `e` | Spanish |
| `f` | French |
| `h` | Hindi |
| `i` | Italian |
| `j` | Japanese |
| `p` | Brazilian Portuguese |
| `z` | Mandarin |
```bash
npx hyperframes tts "La reunión empieza a las nueve" --voice ef_dora --provider kokoro
npx hyperframes tts "Today is a nice day" --voice af_heart --provider kokoro
```
Valid `--lang` codes (only needed to override the voice's auto-detected language): `en-us`, `en-gb`, `es`, `fr-fr`, `hi`, `it`, `pt-br`, `ja`, `zh`.
Non-English phonemization requires `espeak-ng` system-wide (`brew install espeak-ng` / `apt-get install espeak-ng`).
## Speed
- `0.7-0.8` — tutorial, complex content, accessibility
- `1.0` — natural pace (default)
- `1.1-1.2` — intros, transitions, upbeat content
- `1.5+` — rarely appropriate, test carefully
Honored by Kokoro + HeyGen; ElevenLabs ignores `--speed` (use voice settings on their dashboard).
## Long scripts
Past a few paragraphs, write the text to a `.txt` file and pass the path. Inputs over ~5 minutes of speech may benefit from splitting into segments.
## HeyGen word-timestamp shape
When `--words <path>` is passed to a HeyGen call, the file is written in the same flat shape `transcribe` produces — drop-in compatible with the captions pipeline:
```json
[
{ "id": "w0", "text": "Hi", "start": 0.0, "end": 0.21 },
{ "id": "w1", "text": "there", "start": 0.22, "end": 0.55 }
]
```
For ElevenLabs / Kokoro, run `npx hyperframes transcribe narration.wav --model small.en` to get the same shape.