There are no voices in ver. 2b, at least there weren't when I played. Currently there's a post on Patreon that says "Voice overs are in the making". Hope that helped.
EDIT: You may only be able to get voices if you pledge $5 on Patreon, I don't know I haven't pledged. Personally I don't like voices, they never match what I imagine in my head. Plus aren't you going to be playing this in the dark, alone, at home, the less sound the better I say.