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Audio Descriptions
Guideline
Audio descriptions are provided for all prerecorded video content in synchronized media.
Intent
The intent of this requirement is to provide people who are blind or visually impaired access to the visual information in a synchronized media presentation. The audio description augments the audio portion of the presentation with the information needed when the video portion is not available. During existing pauses in dialogue, audio description provides information about actions, characters, scene changes, and on-screen text that are important and are not described or spoken in the main sound track.
Finding Applicable Components
Find interface components that play synchronized media when activated.
Inspecting and Using Components
- Enable the audio descriptions for the synchronized media.
- Play the synchronized media content.
- Check that the audible description is an accurate, synchronized and complete representation of the relevant visual events in the synchronized media.
Section 508/WCAG 2.0 Failure Conditions
- Synchronized media is not audio described.
- Fails 1194.24(d): Descriptions.
- Fails 1.2.3 Audio Description or Media Alternative (Prerecorded)
- Fails 1.2.5 Audio Description (Prerecorded)
- Synchronized media is audio described, but the descriptions are not accurate or complete.
- Fails 1194.24(d): Descriptions.
- Fails 1.2.3 Audio Description or Media Alternative (Prerecorded)
- Fails 1.2.5 Audio Description (Prerecorded)
- Synchronized media is audio described, but the descriptions are not synchronized with video.
- Fails 1194.22(b): Synchronized Alternatives.
- Fails 1.2.3 Audio Description or Media Alternative (Prerecorded)
- Fails 1.2.5 Audio Description (Prerecorded)
Reporting Test Results
Any failure in Section 508 Failure Conditions results in: Fails Baseline Requirement #21.
Synchronized media is audio described AND the descriptions are an accurate, synchronized and complete representation of the video contained in the synchronized media then: Passes Baseline Requirement #21.
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