Expressivity and naturalness are still not good enough. It's getting there, but today you'd never have a voice conversation with an AI and come away thinking "boy, what an engaging, charismatic personality that AI had!" This is partly due to latency, partly due to imperfect speech-to-text which is too slow and doesn't understand conversational dynamics or nonverbal signals, but yes partly due to text-to-speech.

When it comes to naturalness for dialog, OpenAI actually has the best voices I've heard—significantly better than Azure or 11 Labs which are second and third best. But at least the voices they expose through ChatGPT are fairly muted and inexpressive.

I haven’t seen any TTS take 15 second audio samples and capture the speech so well.

It’s getting clearer — in the future, if you didn’t see it happen in real life then it didn’t happen.

>It’s getting clearer — in the future, if you didn’t see it happen in real life then it didn’t happen.

I'm convinced that all these AI technologies have legitimate use cases. But it's far too easy to use them to generate endless streams of noise, spam, and mistrust and drown out anything valuable.

Idk training a model like this is kinda trivial for most shops. Afaik there are open source ones that do the same thing. We trained one with similar audio quality to this by accident while working on music generation.

Even that...Everybody better get their own Certificate Authority and a family password.