On the Video Management Page, you will see a button for 'Captions' (paid feature only):
There are two ways to access captions:
Opening a video from your My Videos page
If you open a video from your My Videos page, you will see a Captions button on the video details page under Video Features on the Video Management Page. Clicking this button will automatically generate captions for your video!
Stopping a recording and automatically opening the Video Management Page
When ending a recording, the Video Management page will automatically open for your video. You will see 'Captions' under 'Add' below the 'Video Features' section. This button will open up a new tab with two options: “Generate Captions”, which will use speech-to-text technology to automatically create captions or “Upload Your Own”, where you can upload your own captions file (must be .vtt format).