# WCAG 2.2 – 1.2.1 Audio-only and Video-only (Prerecorded)

- Level: A
- Principle: 1 Perceivable
- Guideline: 1.2 Time-based Media
- Introduced in: WCAG 2.0

## What the rule requires

An audio-only recording has a transcript. A video without sound has a text description or an audio track that explains what can be seen.

## How to get it right

Put the full transcript below every podcast episode. For a silent explainer video, describe the steps as text next to it.

## Who benefits

- Deaf people
- Blind people

## Sources

- [This rule on wcag.dehl.net](https://wcag.dehl.net/en/wcag/1-2-1/)
- [Official W3C explanation](https://www.w3.org/WAI/WCAG22/Understanding/audio-only-and-video-only-prerecorded)
- [Techniques (WCAG Quick Reference)](https://www.w3.org/WAI/WCAG22/quickref/#audio-only-and-video-only-prerecorded)

_Plain-language explanation. Only the original W3C text is normative._