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Overview


 Captions are text versions of the audio content, synchronized with the video. They are essential for ensuring your video is accessible to students, employees, and members of the public who are deaf or hard of hearing. They also help non-native English speakers to understand the video, make it possible to search for content within the video, help all students learn the spelling of technical terms spoken in the video, and make it possible to generate an interactive transcript where users can click anywhere in the transcript to watch the video where that text is spoken.  Videos should be produced and delivered in ways that ensure that all members of the audience can access their content. 

General Guidelines


Common web accessibility guidelines indicate that captions should be:

  • Synchronized - the text content should appear at approximately the same time that audio would be available
  • Equivalent - content provided in captions should be equivalent to that of the spoken word
  • Accessible - caption content should be readily accessible and available to those who need it