# Voice-over written to the cut

Edit / Sound / Voice. Checked 2026-11-13.

The voice ends when the picture does.

- Use when: Ads with a fixed slot of 15 or 30 seconds.
- Phrase: write the voice-over to fit this 15-second animation, one line per shot, about 2.2 words per second, the last two seconds left free for the end card
- Page: https://directorchair.ai/sound/voice-written-to-length
- JSON: https://directorchair.ai/api/sound/voice-written-to-length.json

## Watch out

- A line typed into a voice tool without the timings is a guess: one creator shows a six-second voice-over delivered for a thirty-second slot. (practitioner; Director Chair notes on Motion graphics with Claude (Rourke Heath))
- This order suits a fixed length. When the words lead, record the voice first and time the scenes to it. (practitioner; Director Chair notes on Motion graphics with Claude (Rourke Heath) and Director Chair field notes on motion graphics)

## Prompts

### Any chat model

```
Give me a sound brief: what to record or pick, where it sits on the timeline, the levels, and what to check before export, for a short video about [your product], for [your audience]. The technique is voice-over written to the cut: the voice ends when the picture does. How it works: write the voice-over to fit this 15-second animation, one line per shot, about 2.2 words per second, the last two seconds left free for the end card. It is right for: ads with a fixed slot of 15 or 30 seconds. A line typed into a voice tool without the timings is a guess: one creator shows a six-second voice-over delivered for a thirty-second slot. This order suits a fixed length. Be concrete: numbers, seconds and settings, no theory. Ask me one question first if something you need is missing.
```

## Goes well with

- 15-second script: https://directorchair.ai/script/script-15s
- 30-second script: https://directorchair.ai/script/script-30s
- Voice first, then the face: https://directorchair.ai/sound/voice-first
- One clock for picture and sound: https://directorchair.ai/sound/one-clock-for-sound

## Source

Own words from Director Chair notes on Motion graphics with Claude (Rourke Heath)

Text CC BY 4.0, Director Chair (directorchair.ai). Reference clips and their card texts belong to their makers.