How to add captions
Edited auto-generated captions
Many people choose to use free, auto-generated captions and then edit them to improve accuracy — often as a cost-saving alternative to professional captioning. Aim for 95% accuracy or higher to meet accessibility standards.
If you publish a video with auto-generated captions, you are required to review and edit them.
Unedited auto-generated captions are often not accurate enough for individuals with disabilities to fully understand the content. For platform-specific instructions on enabling and editing captions, see the following resources.
How to add captions or transcripts
Free auto-generated captions & transcripts with MediaPlus
When you upload a video on MediaPlus, it will be automatically captioned and transcribed using speech-to-text technology.
Captions:
- Once captions have been generated, you can edit them directly within MediaPlus or you can manually upload external captions from another platform such as Zoom, Wistia, YouTube, etc. (VTT caption format only).
Transcripts:
To learn more about using MediaPlus visit the MediaPlus Resources Page.
Paid auto-generated captions
- Vimeo: For paid members, Vimeo provides auto-generated captions, which must be manually edited.
Software for auto-generating captions
Camtasia: Manually add captions or use the integrated Microsoft speech-to-text engine to add auto-generated captions in Camtasia.
Windows Speech Recognition: Use this free speech recognition software built into Windows to generate a transcript. You will need to time sync the transcripts and upload the file in the .SRT or .VTT format.
Google Docs Voice Typing: Use this free "voice typing" software in Google docs (available in the Chrome browser only) to generate a transcript. You will need to time sync the transcripts and upload the file in the .SRT or .VTT format.
Paid professional (human-generated) captions
For live events: Contact SAILS for advice on providing accommodations and possible referrals for professional interpreters and/or transcribers.
For recorded video: If you don't have the time or resources to manually create captions or to edit auto-generated captions, many paid professional captioning services are available. In some cases, it may make sense to take advantage of a paid service to edit auto-generated captions or to have a professional transcribe a recorded video.
Caption writing guides
The recommended guide to writing captions is the Department of Education-supported Described and Captioned Media Program (DCMP) Captioning Key.