Ensure that D/deaf people have access to the information in prerecorded audio and video content.
Why this matters
Without captions, people with D/deafness, other Auditory Disabilities, or who are in situations where they can’t listen to the audio (loud environment, sleeping baby) must still have a way to access the content.
How to implement
The most flexible and usable method of providing synchronized captions is WebVTT: The Web Video Text Tracks Format.
Additional resources for implementation
How to Add Closed Captioning To A Video – And What I Learned by Claire Brotherton
How to test
- Play the media.
- Confirm the captions are timed to synchronize with the media.
- Confirm the captions are accurate to the audio content in the media.