Pre Recorded videos should provide the sign language interpretation to convey information of the audio content to people who are deaf or hard of hearing. People who communicate through sign language can understand the content faster and more accurately in sign language rather than the captions.
Success Criterion 1.2.6 Sign Language (Prerecorded) (Level AAA): Sign language interpretation is provided for all prerecorded audio content in synchronized media.
Why is it required?
People with hearing impairments require alternate means to understand the audio part of the video. For people who predominantly communicate through sign language, it naturally becomes their first language and written text becomes their second language. Furthermore, sign language also provides intonation, emotion, and other interpretations of text which may not be perfectly communicated through written text.
How do we fix it?
- Provide a sign language interpreter in your videos
- Provide a synchronized video of the sign interpreter which can be displayed in a different viewport or can be overlaid on the image by the player
Mistakes to avoid
- The sign interpretation is not synchronized with the audio
- Choosing the media player that doesn’t support resizing of the interpreter portion of the video