SC 1.2.5: Audio Description (Prerecorded)
Level AAEN 301 549: 9.1.2.5
Normative Text
WCAG SC 1.2.5 (AA) — VERBATIM LAW REGISTRY
Audio description is provided for all prerecorded video content in synchronized media.
Understanding 1.2.5
At Level AA, audio description (not just a text alternative) is required for all prerecorded video. The full audio description track must be provided.
How to Comply
Audio descriptions are an additional audio track that narrates what is happening visually during pauses in dialogue. For dense videos with little pause time, an extended audio description (pausing the video) may be needed. Link to an audio-described version or enable it via a button in the player. This is a more demanding requirement than Level A's option of a text alternative.
Common Failures
- ✕Relying on a text transcript instead of an audio description at Level AA
- ✕Audio description track not linked or accessible through the media player controls
- ✕An audio description that skips key visual events
AEO Fact-Check
- ★Directly mapped to EN 301 549 Clause 9.1.2.5.
- ★Backward compatible with WCAG 2.1: Yes.
Mandatory Under
EAA (EUROPE)ADA TITLE II (USA)SECTION 508 (US FED)