Here are the steps you need to follow to turn it on:
Open Google Chrome on your desktop or PC
Click on the three dot icon on the right side of the screen
Click on Advanced section on the left side
From this section, open Accessibility section<br>
Turn on Live Caption
Chrome browsers running on version Chrome 89 or above come with support for Live Captions. These captions appear in a pop-up window, which can be moved around at the bottom of a video, and can be extended. Users will be able to use it for all kinds of videos they view on Chrome including those on Twitter, YouTube and any web page. As of now, the Live Caption feature works for English only, but support for more languages is likely to be rolled out soon.