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Success Criterion · WCAG 1.2.7

Extended Audio Description (Prerecorded)

Where pauses in foreground audio are insufficient to allow audio descriptions to convey the sense of the video, extended audio description is provided for all prerecorded video content in synchronized media.

Level AAAWCAG 2.0Perceivable1.2 · Time-based Media

Success criterion

What WCAG 1.2.7 requires

Summarized directly from the official Understanding document so teams can quote the requirement accurately.

All non-text content that is presented to users must expose an equivalent text-based alternative unless a documented exception applies.

View Understanding 1.2.7 Open QuickRef techniques

Overview

Use this space to describe how your product interprets this success criterion, list ownership, and capture implementation decisions for future audits.

Reference: All summaries and highlights originate from Understanding WCAG 1.2.7 and the W3C quick reference.

Read the Understanding doc View sufficient techniques

Fast facts

Conformance level: Level AAA
WCAG version introduced: WCAG 2.0
Principle: Perceivable
Guideline: 1.2 · Time-based Media

Implementation checklist

Capture progress and blockers

Document how this criterion impacts your product and note any exceptions.
Describe the user experience goal in plain language for designers and engineers.
List the components, templates, or workflows that must meet this requirement.
Capture manual and automated testing steps for future audits.

Testing ideas

Prove conformance with evidence

Pair automated linting with human review to verify visual, auditory, or temporal aspects.
Use assistive technology walkthroughs (screen reader, keyboard, switch, voice) to validate behavior.
Capture screenshots or recordings that demonstrate pass/fail conditions.

Related success criteria

More from Time-based Media (1.2)

View all criteria

WCAG 1.2.1Audio-only and Video-only (Prerecorded)Level A WCAG 1.2.2Captions (Prerecorded)Level A WCAG 1.2.3Audio Description or Media Alternative (Prerecorded)Level A WCAG 1.2.4Captions (Live)Level AA WCAG 1.2.5Audio Description (Prerecorded)Level AA WCAG 1.2.6Sign Language (Prerecorded)Level AAA WCAG 1.2.8Media Alternative (Prerecorded)Level AAA WCAG 1.2.9Audio-only (Live)Level AAA

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