Forum Discussion
Closed Caption .vtt edit in Stream
- Jun 29, 2017
So it would be as follows...
- After the autogenerated caption file is created and shows the transcript mode on the video.
- Edit the video
- Options section > Captions > "Download file"
- Open up the .VTT file downloaded in a text editor, make corrections, etc.
- Go back and edit the video > Options > Captions
- Uncheck the "autogenerate a caption file" check box.
- "Upload a caption" file button.
- Upload your edited .VTT file.
We'll then use your new custom caption file for the transcript mode and deep search.
NOTE: We'll be adding ability to edit the transcript direclty in Stream in the future as I know the above isn't intuitive or easy.
If we've auto generated a caption file for your video you'll be able to download it with this...
- Edit the video
- Options section > Captions > "Download file"
If you don't see "Download file" in the captoins section or don't see a CC button on the player it means we didn't autogenerate one for your video.
We only support english/spanish language spoken in video.
You have to have that set on the video lanaguage field.
We also only support autogen of captoin for files that are MP4 or WMV. If it's any other extension it won't work. (You can try and just rename your file). We are looking at if we can fix this extension issue in the short run to support more or all formats we support for video playback.
I did search for a .vtt file editor and found a free one called 'subtitle edit' very professional and really easy to use
- Steven StoneJan 18, 2018Copper Contributor
Thanks! This tool worked for me.
- David Van LeeuwenApr 30, 2018Brass Contributor
When attempting to upload a .vtt file on Mac OS X I get the following: "File format not supported. Please select a .vtt file" Something to do with how OS X handles files/extensions? Could Stream connect with Office 365 instead of using the upload dialog?
- scottkeirMay 28, 2020Copper Contributor
I'm getting the same error as David Van Leeuwen today - using a Mac, have been diligently editing a downloaded caption file, and cannot upload it.
Even downloading the caption file from Stream, and then immediately trying to reload it, fails as "File format not supported. Please select a .vtt file" - and that's the file directly from Microsoft Stream!
I've tried uploading the file from OneDrive rather than from my hard drive to no luck. Any workaround? Or is the workaround to find someone use a Windows PC?
(This is the second irritation today when trying to use Stream - both https://support.microsoft.com/en-us/office/edit-the-transcript-of-a-meeting-recording-in-teams-2f461386-e39a-4444-b9e2-5787da1da11b and https://docs.microsoft.com/en-us/stream/portal-add-subtitles-captions for how to get to the captions area don't match my view of stream - neither ... has "Edit video" and the pencil does not have "Update video details" - fortunately one of the ... has "Update video details" so I got there in the end.)