The Web Accessibility Initiative uses the following definition of audio descriptions:
What: Description explains visual information needed to understand the content. (For example, “Pat opens a small box, looks at a diamond engagement ring, and cries”.) Depending on the type of video and media player, description can be:
Who: Description provides content to people who are blind and others who cannot see the video adequately.
Watch the video below to see an example of audio descriptions. Note that these audio descriptions are "baked into" the main audio track of this video playing on YouTube. Instead of being part of the main audio track, Panopto's audio descriptions are on a separate audio track that can be turned on or off.
For written instructions, see the How to Add Audio Descriptions article.
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