What it does
The extension asks the browser for the audio of your active tab, streams it to a real-time translation model, and plays a spoken translation back through your speakers a couple of seconds behind the original. The tab’s own audio is automatically turned down while the translated voice speaks, so the translation sits on top of the original rather than fighting it. Captions for both the source and the translation appear in the popup as the session runs, and accumulate into a transcript you can scroll back through.
It works on whatever the tab is playing: a YouTube video, a Twitch stream, a recorded lecture, a news broadcast, a meeting running in the browser. There is nothing to route and no virtual audio device to install. The extension only ever receives the audio the browser hands it, and only while a session is running — when you stop, it is not listening.
Two ways to run it
The same extension works either as part of a VoxisLive account or entirely on its own key. The second option is the one most tab-dubbing tools do not give you, so it is worth being precise about what each mode means.