Closed Captioning

Closed captioning displays audio as text on-screen synchronized with the dialogue of the speaker and will allow you to: 

  • Make your content fully accessible to people who have hearing loss.
  • Reach all members of our learning community, including visual learners.
  • Compensate for noisy backgrounds or where the sound isn’t allowed. 
  • Provide a solution for poor audio quality.
  • Provide additional support for people who are learning English as an additional language.
  • View the correct spellings of people, places, and things.
  • Catch details that normally go unnoticed.
  • Browse the video by reading the associated text as you drag the controller 
  • Meet or exceed compliance with the W3C Web Accessibility Guidelines adapted by the AODA in Ontario. 

 What is Described Video (DV)?

Described Video is a secondary audio stream that describes nonverbal actions and graphics displaying on-screen during a video and will allow individuals with visual impairments to understand actions, illustrations, and other visual elements of a media object.

 What do I do if Described Video or Closed Captioning is noted on an Accommodation Letter?

  • You will be alerted to the presence of a student in your class who is blind or has low vision through an Accommodation Letter.
  • The accommodation letter will request that all videos be reviewed by professors prior to showing in class, to ensure that described video or captioning is available.
  • If described video or captioning accommodation is indicated by Accessible Learning Services, it must be turned on in every class.

Watch a quick video on the subject: Why Captioned Media?

Where do I get the videos that are already described or captioned on campus?

Humber Libraries houses Humber's on-site knowledge expertise with respect to Copyright and Captioning. Humber is committed to providing captioning and describing web videos and expects that:

  • New videos are purchased with closed captioning and described video already embedded, or with the permission to add them
  • Appropriate permissions are obtained from the copyright holder prior to downloading and/or captioning any video found on the Internet 
  • Videos created in-house will be captioned prior to upload/distribution

Please see Humber Libraries’ information page on Copyright

Check Humber Libraries’ holdings to find out which DVDs and streaming videos are captioned by:

  1. Using the Library's video search.
  2. Typing "captioned" in the box.
  3. Browsing the results list for what is available.

If a required video in Humber Libraries’ holdings is not captioned or is needed in another format, please contact Library staff at or

Additional Support from the Faculty of Media and Creative Arts (FCMA) 

Since 2017, the FMCA has provided an in-house transcription and closed-captioning initiative through their Accessible Media Department that you can utilize to make your original audio-visual course content more accessible for your students. 

More information on this service can be found on the Request Closed Captioning page of the FMCA site.