M365 Changelog: (Updated) Video Closed Caption in PowerPoint Live

MC513049 – Updated October 3, 2023: Microsoft has updated the rollout timeline below. Thank you for your patience.

Closed captions will soon be supported for embedded videos in PowerPoint Live for Teams. Video closed captions in PowerPoint Live will be rolling out across Microsoft Teams Desktop and Web and will allow PowerPoint Live users to create accessible presentations that include video.

This message is associated with Microsoft 365 Roadmap ID 114494

When this will happen:

Microsoft will begin rolling out to PowerPoint Live users in early-March and expect to complete rollout by mid-March.

GCC, GCC-High and DoD: Microsoft has begun rolling out and will complete by late October 2023 (previously late September).

How this will affect your organization:

When creating a PowerPoint presentation in PowerPoint for Windows or PowerPoint for Mac, users have the option to include a closed captions file with their video (as shown below).

option to include an out-of-band closed captions file
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When the presentation is shared via PowerPoint Live for Teams, any embedded video that includes closed captions stored in a separate file will automatically include the option for attendees to turn on closed captions.

automatically include the option for attendees to turn on closed captions.
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When closed captions are turned on, they will appear at the bottom of the slide, as shown below:

When closed captions are turned on, they will appear above the video player controls
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When no closed captions are available for a video, the closed captions button will be disabled.

When no closed captions are available for a video, the closed captions button will be disabled
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What you need to do to prepare:

To prepare for this change, you may want to notify your users about the new support for video closed captions in PowerPoint Live for Teams, update your training and documentation as appropriate, and encourage your users to make their PowerPoint presentations more accessible by adding closed captions for their embedded videos.