Maybe watch the hurdy gurdy video side by side, I believe there's a filmed section of the narrator in there. He's been making these highly detailed videos for a long time and has spent years on this video alone. I highly doubt there's any AI involved.

Edit: not sure when this happened but it appears many videos of his face have been removed from both channels so maybe don't go looking since it seems he doesn't want to be found but rest assured that Fredrik Knudsen is a real person who just sounds like that

There’s a series of YouTube comments, theories about a new mic, voice transposing, EQ, and this what all his other videos sound like.

To me, it just sounds staccato pacing, maybe some trimming.

I don’t think it’s AI but I am no authority / audio engineer but I have listened to and spoken with, what I assume, are humans for decades.

I have a theory that many YouTube content creators slow down their voice recordings to stretch out video/watch times... It might explain the strange tones.

There are two voice credits with xitter links right in the description.

I'm pretty sure it's AI generated. For a couple days I was falling asleep to this one anyway, not much content like it about Eve elsewhere (other than the book that was written).