About the Kaltura REACH captioning service

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Captioning and transcript features are now integrated into Kaltura (including Mediaspace and Canvas). The captioning service allows faculty and staff to order captions and transcripts for media uploaded into Kaltura. The captions and transcripts are automatically integrated with the media upon completion.


  • Upload media into Kaltura Mediaspace.
  • Mechanical captions (machine generated) are automatically generated once the media is uploaded to Kaltura. These will require additional editing by the video owner, but are included with the Kaltura service at no additional charge to the department.
  • Professional captions (human edited) are available at a rate of $1.10/minute for 48-hour turnaround. A billing account is required to request professional captions. If you don't already have an account with the captioning service, email UITS Assistive Technology and Accessibility Centers (ATAC) at atac@iu.edu to create one. When your account is created, you will receive additional information about submitting your videos for processing.
  • Once captions are completed, they will automatically appear in the Kaltura player.

Caption fidelity: mechanical vs. professional

Captions and transcripts can be generated at two fidelity (quality) levels:

  • Mechanical (no fee): The mechanical fidelity setting results in fully automatic (machine generated) captions. The quality of mechanical captions will vary and are not of sufficient quality to be suitable for the hearing impaired and should not be used as such. They are intended to be a base for creating accurate captions via the captions editor and to facilitate search, interactive transcripts, and other features.

    Mechanical-fidelity captions are generated automatically when new media is uploaded into Kaltura and can be ordered for existing media without fee. Requests for mechanical captions are completed in under 24 hours.

    For instructions on editing captions in Kaltura, see Download and edit captions or transcripts in Kaltura.

  • Professional (fee-based): The professional fidelity setting results in captions that have been human edited for higher quality results. You may still wish to review and edit the captions in videos that have specialized vocabulary or poor audio quality.

    The fee for professional-fidelity captions is $1.10 per minute (final computed by rounding up to the next whole minute). Requests for professional captions are processed with a 48-hour turnaround time.

Interactive transcript feature

The interactive transcript feature allows users watching your video to do keyword searches, follow along with the transcript, select any word to quickly jump to that point in the video, and download the transcript if needed. This feature is available for videos accessed through the Kaltura Media Gallery in Canvas, and on videos viewed directly on Indiana University's Kaltura MediaSpace. This feature is not available for videos viewed in playlists on Kaltura.

Student accommodations

Captioning requests for students who have been authorized to receive captions as an accommodation will be made without fee to the faculty.

Get help

If you have questions, comments, or problems using the service, email atac@iu.edu or call 812-856-4112.

This is document adbr in the Knowledge Base.
Last modified on 2024-05-29 09:31:27.