yeah that’s what i’m thinking? his other senses heightened, especially his hearing, but honestly i have a hard time distinguishing voices irl too. for some reason, it’s easier for me to distinguish who’s who when someone records their voice but if im faced away and someone from behind me starts talking, i wouldn’t know who it’d be until i see their face but im sure he’d eventually realize in the tone and small inflections in her voice, to her gestures and personality traits that it’s paula!
I think it’s cuz ur senses are heightened when u can’t see, but when u can see they’re dulled. I think someone said that the novel mentions how Vincent said his other senses became dulled after he got his sight back or smth, not 100% sure but that would make sense because when you lose 1 sense the rest of the other sense gets stronger to make up for the lost one i think-
Also I heard from other comments that many people pretended to be Paula and even imitated her voice, so he’s more cautious about it now and won’t automatically trust it’s her from the voice.

Someone spoil me what happens in the novel i cant take it anymore