I definitely have the, what my family calls, "super hearing ". I can hear when silent devices are on or off especially TVs. Like no sound, no picture, black screen, I can hear it. I’ve taken formal and informal hearing tests and they all put my hearing range way outside normal, both above and below. I can definitely recognize footsteps, regardless of shoes.

Couple this with my ADHD, and you get a guy who can hear everything, and learned to tune everything out all the time.