moto-man
I can speak of my experiences.. understanding others might have a different one and some may be much more skeptical about the therapeutic value of hearing aids.
When I got my first pair of ReSound hearing aids from the VA some 7 years ago they were calibrated and tailored to my hearing loss. After leaving the fitting area and going to my car I had reached for a bag of potato chips on the passenger seat and heard clearly the crinkle of the plastic bag the chips were in. Recently I updated my hearing aids to Resound Nexia and upon putting on my Goretex jacket I heard the crinkle of the jacket (which sounds like a paper bag being smashed down) When I got home I decided to listen to the TV in my living room and I had heard the faint beep of my refrigerator alarm in the kitchen which tells me I didn’t fully close the door. These are sounds I was not hearing. The sounds that fall within the frequency range I happen to have a deficiency in. Later when I listened to music on my stereo, I was hearing sounds I had not been hearing (for who knows how long). I don’t really think about hearing aid amplifier distortion, I think about re-listening to music and hearing all that is there... that I have been missing.