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Spotify is going to clone podcasters’ voices — and translate them to other languages
(www.theverge.com)
This is a most excellent place for technology news and articles.
Shows with the budget/intent to create good quality translations will have them reviewed/refined by humans before they put it back in the voice of the host, I don't see why they couldn't do that.
Shows without the budget or that just don't care will use full-auto and I'm sure it will indeed suck.