Please dont... "YouTube voice," the narration style(s) that so many creators have picked up, is very annoying. It's worse than "newscaster voice."
Edit: This is a cool tool though
Edit: This is a cool tool though
I first assumed they were referring to the "I have just figured out a secret, little child, and I'm deigning to share it with you" type voice that Johnny Harris and people making videos of that ilk put on.
Then I thought maybe they were talking about the YouTube voice people like Connor (CDawgVA) and Ludwig put on, which is a mix of the "hype" voice you mention and a sort of 80s radio presenter voice.
The conclusion is that there's no such thing as a "YouTube voice" that the GP comment mentions, it all depends on which bubble of YouTube you're familiar with and extrapolate to the whole of it.
I can't say I've ever noticed that -- do you have particular creators/videos in mind?