[gagabity]

This is great, I tried to do a similar thing once but my language is one of those that AI doesnt do well.

I think you can look into muting the original voice in the video, I remember I saw there is some AI/tech that can separate audio into voice and nonvoice.

Yandex browser does this in the browser, you open a YT video and it offers to translate, a few seconds later the voices are all in Russian, it's probably the most interesting production use of AI I have seen and for free. It's to Russian only unfortunately.