Other sites reporting on this say the captions are generated on device meaning it works offline Dev Anand On Thu, 18 Mar 2021 at 1:06 PM, Dev Anand Teelucksingh <devtee@gmail.com> wrote:
https://blog.google/products/chrome/live-caption-chrome/
" Unfortunately, captions aren’t always available for every piece of content. Now with Live Caption on Chrome, you can automatically generate real-time captions for media with audio on your browser. It works across social and video sites, podcasts and radio content, personal video libraries (such as Google Photos), embedded video players, and most web-based video or audio chat services."
... To turn on Live Caption in Chrome from your desktop, go to Chrome Settings, click on the Advanced section, then go to the Accessibility section. The feature currently supports English and is available globally on the latest release of Chrome on Windows, Mac and Linux devices and will be coming soon to ChromeOS. For Android devices, Live Caption is already available <https://blog.google/products/android/live-caption/> for any audio or video on your mobile device."