1. Access your Canvas Studio library.
  2. Click the thumbnail of the video you want to caption.
  3. Scroll below the playback window. 
  4. Click the Captions tab.
  5. Identify the language spoken in the video and click Request.
  6. The captions will take a short while to process. Once processed, click Review and Publish.
  7. Make any necessary edits (optional). Click Publish to make the captions available to students.
This screenshot shows how a viewer enables closed captioning when viewing a video in Canvas Studio.