Common accessibility barriers to audio and video content include:
- missing description of visual information (such as text in the video) for people who cannot see the video
- requiring sight to understand the content of the video
- making text in the video hard for some people to see because there is not enough contrast between the text and the background colors
The Web Accessibility Initiative's guide to Making Audio and Video outlines how to make media accessible, whether you are creating it yourself, outsourcing it, or sharing content created elsewhere: