It sounds like they’re talking exclusively from the front of the mouth. I used to talk like that when I was trying to conceal a tongue ring. I wonder why that is?
Linguistics nerd stuff below: American English is spoken from the front of the mouth compared to lots of other languages (not this far forward, but still). I wonder if AI voices speaking Arabic would move Arabic forward by the same amount, all the way to the front, or further back (no human anatomy restrictions on AI voices).
Basically, I wonder if this is a consistent artifact of AI voices or whether AI is just exaggerating unique features of a language.
Edit: I found this, which sounds natural enough that I wouldn’t have thought anything of it (aside from the cuts and the actual things said), had I not been watching out for front of the mouth talk