OnceBefore

10 · Manual

Explanations, recordings, and transcripts

Add equivalent text and optional short audio or video while preserving a readable alternative.

Steps

  1. Write what is happening in the scene and a media description for reading support.
  2. Choose Record explanation for optional narration. Keep each explanation within 15 seconds and add a transcript with the same information.
  3. For a video source, choose a candidate range. A shared video scene is at most 15 seconds and is silent by default.
  4. If including original sound, review the whole rendered preview, complete its transcript, check sharing permission and sensitivity, then confirm the review.
  5. For timed captions, add ordered, non-overlapping cues within the recording while keeping the complete transcript available.

What to expect

The recipient can use the visual scene with a text alternative and, when included and reviewed, matching audio, transcript, or captions.

If it does not work

Keep in mind

Image masks do not hide names or conversations in audio. Re-encoding does not make sensitive content anonymous.