Prerecorded video should provide captions

Rule media-captions · Document, language & navigation · impact serious · Static + live

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Why it matters#

Video with an audio track needs synchronized captions so people who are deaf or hard of hearing can follow the spoken content. A

How to fix#

Add a (or burned-in captions verified to be accurate). If the video is silent/decorative, this can be dismissed.

Example#

<video src="talk.mp4" controls></video>

<video src="talk.mp4" controls><track kind="captions" srclang="en" src="talk.vtt"></video>

WCAG success criteria#

1.2.2 Captions (Prerecorded) — Level A#

Prerecorded video that has an audio track needs synchronized captions so people who are deaf or hard of hearing can follow the spoken content.

Understanding 1.2.2

Standards#

This rule contributes to the following standards:

WCAG A EN 301 549 Section 508 Trusted Tester

References#

• WCAG — Captions (Prerecorded)