I'm wearing a digital hearing aid. You're right, I began to hear things that I didn't think I could hear before.
So, what kind is it?
The one I have has 3 modes... regular mode, focuses mode, and MTV mode.
regular mode - like the normal M mode on analog hearing aids, but with anti-feedback
focused mode - it is the same as regular mode, but the background sounds are reduced and the sounds of a person talking in front of you are increased (good for crowded restaurants and bars)
MTV mode (music/television mode) - the same as M mode on analog hearing aids (since regular mode has anti-feedback, sound effects and music are considered feedback and are reduced) and good for listening to music
I was offered telephone mode, but I don't use the telephone. So, I traded that for MTV mode.