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whisper-beat-finder

Transcribe an mp3 with Whisper and convert the word-timestamped transcript into beat boundaries by matching key phrases from the script.

workspaces/voice-driven-animation/skills/whisper-beat-finder/SKILL.md

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## When to Use

Use this skill in Stage 03, immediately after `elevenlabs-narration` produces an mp3. It outputs two things:

1. `transcript.json` -- Whisper's full output with word-level timestamps
2. `beat-timings.md` -- absolute timestamps for each beat boundary and key sub-callout

Stage 04 reads `beat-timings.md` to populate `timing.ts` and re-time per-scene `T` constants.

## What You Need

- Python with `openai-whisper` installed
- The mp3 produced by Stage 03 (Whisper takes the file path)
- A list of phrases to find (these come from the script, one per beat boundary)