I have auditory symptoms. I think it's probably a combination of two things. Part of it's a difficulty in deciphering what people are saying. Probably the main part, though, is filtering out background noise.
If someone's talking and I'm in a nightclub, my chances of hearing them are close to zero. Even if it's just the TV in the background, I can have difficulty.
I thought for a while that it was just dodgy hearing, but NTs with way worse hearing than me manage to pick up what people are saying quite naturally.