SCRIPT — example.com intro

Voice: River — ElevenLabs, voice id SAz9YHcvj6GT2YYXdXww Model: eleven_multilingual_v2 · mp3_44100_128 → 44.1 kHz mono WAV Voice direction: Calm and unhurried. Low-key confidence, no sell. Read it the way you would read a footnote you happen to find interesting.

The whole script is one synthesis call so the sentence-to-sentence prosody is real rather than three clips butted together. The **Time:** values below are not estimates — they are the measured word timings from npx hyperframes transcribe assets/narration.wav --model small.en, offset by the narration clip's data-start of 1.00s.

Line 1 — Name it (Frame 1)

Time: 1.10 – 2.81s Delivery: Flat, factual. The period is real; let it land.

This is example dot com.

Line 2 — What it is for (Frame 1)

Time: 2.81 – 5.38s Delivery: Slightly warmer. "Reserved" carries the sentence.

The domain reserved for documentation examples.

Line 3 — The payoff (Frame 1)

Time: 5.48 – 7.68s Delivery: The lift of the piece, but quiet. Space before "no permission needed."

Use it in your docs — no permission needed.

Spoken vs. captioned

One deliberate divergence: the TTS text says "example dot com" because that is how the string is pronounced; the caption reads "example.com" because that is how the string is written. Whisper transcribed the spoken form back as example.com,, which is why the caption group's word timing for it spans a full 1.27s.

Regenerating

# 1 — synthesize (ElevenLabs, via the /media-use audio engine)
node -e '
  import("'"$HOME"'/.claude/skills/media-use/audio/scripts/lib/tts.mjs").then(m =>
    m.synthesizeOne({
      provider: "elevenlabs",
      voiceId: "SAz9YHcvj6GT2YYXdXww",
      text: "This is example dot com. The domain reserved for documentation examples. Use it in your docs — no permission needed.",
      wavAbs: process.cwd() + "/.work/narration.raw",
      hyperframesDir: process.cwd(),
    }).then(r => console.log(r)))'

# 2 — normalize to 44.1k mono PCM
ffmpeg -y -i .work/narration.raw -ac 1 -ar 44100 -c:a pcm_s16le assets/narration.wav

# 3 — word timings for the caption groups
npx hyperframes transcribe assets/narration.wav --model small.en

Step 3 rewrites .work/transcript.json. If the timings move, the caption group boundaries in compositions/captions.html and the WORDS table in this file's consumer must move with them — they are hand-committed on purpose so the composition has no build step.

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