Make audio and video related content fully accessible to vision and hearing impaired users.
Video Content with Audio (prerecorded and live)
Users who are deaf, hard of hearing, or having trouble understanding the audio information must be provided with a text based alternative.
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Provide a Description of the Visual Content in Videos
Provide people who are blind or visually impaired access to the visual information in a synchronized media presentation.
Alternative One
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 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.
Alternative Two
The second approach involves providing all of the information in the synchronized media (both visual and auditory) in text form. An alternative for time-based media provides a running description of all that is going on in the synchronized media content.