I am learning Korean by watching Star Trek with Korean subtitles. There is no Korean audio track for Star Trek. It would be great if I could switch on Korean audio (i.e. generate audio for the Korean subtitles) rather than listening to the original English audio.
There is a lot of interesting content in one’s own source language, that could be more approachable than content in the target language. So I think this feature would be helpful for those early in their language journey like myself.