Can't be the only one

I can recognize my mother by the sound of her keys jangling

This is a very common ability, actually. I live in a hostel, and can easily identify my fellow live-ins when they walk by my door.

I do this too!

I can recognize anyone I know by watching how they walk. So in a crowd I can easily find my group

If my bedroom door is closed, I can tell who's coming by the sound of their breathing

Don't forget scent

My grandma sounds like she says "Stockholm" every time she coughs

Same.
Little Bro- lighter faster steps
Older bro- heavy thudding steps
Dad- keys and heavy steps
Mom- slow medium steps
Grandma- shuffling of slippers
Aunt- limping steps
Cats- earthquakes

I have wooden stairs in my house and i know who is coming up the stairs by the heavyness of the steps and rhythm am speed

omg, finally! I can recognize my father, by his faint, but dragged foot steps. My brother by the heavy steps. My mother by her quick steps. And my sis by her short, loud steps. Also, they breathe different. My father with his ninja breathing. My brother by his long, loud breathing. My mom by her short breaths. And my sis by her medium breathing.

I can recognise my family members by the sounds of their steps when they walk upstairs, their keys jingling when they come home and lock the front door and by their individual sneezes.

I do this too