Audio and video can contain information that some people can’t see or hear. However, captions, transcripts and descriptions can provide an alternative way to access that information.
- Captions are a required alternative for speech and important sounds in video
- Transcripts provide an alternative full text version of a media file. They can also be very beneficial when a media file doesn’t load.
- Audio description or another description of visual information is important when key information appears visually but is not explained in the audio
- Ensure that media players use accessible media controls that people can use with a keyboard and assistive technology
Plan early for media accessibility
It is much easier to create accessible media when you plan for it before recording.
For example:
- prepare a script that can also help create captions or a transcript
- say important information aloud rather than putting it only on screen
- leave space in the narration for descriptions where they are needed
- if automatic captions and transcripts are used, it should be reviewed for errors and updated
Where to start
For video with speech, start with the Captions guide. For complex media consider providing a transcript or description of important visual information.
Sources and further guidance: W3C - Making Audio and Video Media Accessible