Understanding Success Criterion 1.2.3: Audio Description or Media Alternative (Prerecorded)


The intent of this Success Criterion is to provide people who are blind or visually
impaired access to the visual information in a synchronized media presentation. This
Success Criterion describes two approaches, either of which can be used.

One approach is to provide audio description of the video content. 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

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