How do I add captions to new or uploaded videos in the Rich Content Editor in Canvas as an instructor?
You can easily create and upload caption files when you upload video content in the Rich Content Editor. The Rich Content Editor is used in features that support the editor (Announcements, Assignments, Discussions, Pages, and Quizzes).
This lesson only applies to creating captions for videos created in or uploaded into Canvas. If you've created a video outside of Canvas that you want to share in your course, you can create captions using an external service such as Amara or YouTube.
Note: Users can view video captions in the Canvas apps. However, iOS devices can only display captions in WebVTT format. If you use another format besides WebVTT, users on iOS devices will not be able to display the video captions.
Open Media Upload Tool from Toolbar
To upload media from the toolbar, click the Media icon .
You can also upload media from the media options menu. To view additional media options, click the Media Options arrow . Then select the Upload/Record Media option .
To view the Media icon, you may have to click the Options icon .
Note: If the Media icon does not display in the toolbar, media uploads have been disabled by your institution.
Open Media Upload Tool from Menubar
You can also upload media using the menubar in the Rich Content Editor. The menubar displays the title of Rich Content Editor tools and may be preferable for those using keyboard navigation.
To upload media using the menubar, click the Insert menu , select the Media option , and select the Upload/Record Media option .
Click the Add CC/Subtitles checkbox.
Select Language and File
To specify the language for your captions, click the Select Language drop-down .
To attach your caption file, click the Choose caption file button . You can upload SRT or VTT files.
Select the file you wish to upload , then click the Open button .
View your media file  and your caption file . To attach additional caption files, click the Add button .
When finished adding media and caption files, click the Submit button .
View Media with Captions
When you add captions to a media file, the file displays a CC icon.