Providing a transcript – a textual version of a video and/or audio – increases accessibility of the content. Practitioners and/or learners who are deaf-blind can access the content by using a refreshable (dynamic) Braille display, which converts text into Braille.
Providing transcripts also has other benefits:
* The text is then searchable by search engines.
* People can double-check a point without listening to the audio/video again.
* Some people prefer reading rather than watching a video; others prefer both.
* Content is still available when the video is not; for example, currently Flash video can not be viewed on a iPad.