[jchook]

Lyrebird has had similar technology for a few years now.

https://www.descript.com/lyrebird-ai

[0xcafecafe → jchook]

An apt name for the technology considering the marvel of nature that the lyre bird is.

https://www.youtube.com/watch?v=VjE0Kdfos4Y

[Conlectus → jchook]

Worth noting that Lyrebird is very rough -- at least last I tried -- and produced extremely robotic sounding (though recognizable) audio.

This method has much clearer audio, but seems to lack generality / TTS capability.

[wenc → jchook]

Yes, I remember seeing this a while ago. Nice work by the MILA group in Montreal.