When audio description cannot be added to video due to audio timing (e.g., insufficient pauses in the audio), an alternative version of the video with pauses that allow audio descriptions is provided.A sign language video is provided for media that contains audio.ġ.2.7 Extended Audio Description (Prerecorded).While not required at Level AA, for optimal accessibility WebAIM recommends transcripts in addition to audio descriptions.Audio descriptions are provided for non-live video.Synchronized captions are provided for live media that contains audio (audio-only broadcasts, web casts, video conferences, etc.).NOTE: Only required if there is relevant visual content that is not presented in the audio. A transcript or audio description is provided for non-live video.Synchronized captions are provided for non-live video (YouTube videos, etc.).ġ.2.3 Audio Description or Media Alternative (Prerecorded).A transcript or audio description of relevant content is provided for non-live video-only, unless the video is decorative.A transcript of relevant content is provided for non-live audio-only (audio podcasts, MP3 files, etc.).Success Criteriaġ.2.1 Prerecorded Audio-only and Video-only NOTE: If the audio or video is designated as an alternative to web content (e.g., an audio or sign language version of a web page, for example), then the web content itself serves as the alternative. Time-based Media: Provide alternatives for time-based media ![]() Success criteria added in WCAG 2.1 are marked as such and have a light green background.Ī PDF version of this checklist is also available The first column of the table below links to the official WCAG 2.1 success criteria.
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