audio description

Also called visual description or descriptive video. This narrative audio track gives an essential visual context for people who are blind or have low vision.

For video, it is presented as an alternative or additional audio track. For both video presentations and audio presentations, it is best to integrate as much visual descriptive information as possible into the primary audio track as possible by:

• Having subjects identify themselves and describe themselves
• Having narrators describe surroundings using visual language

In a separate audio description track for video, narration will be focused on visual descriptions in the video. This track should be available for playback in the video player.

If the video includes charts, graphs or bullet point lists, those should also be described in the audio descriptions.