Despite some upper frequency loss and mild tinnitus, one thing I have always been curious about is the sound quality.
From what I have read, a hearing aid is comprised of three components. A microphone, an amplifier and a speaker. The goal has always been to merely amplify sound volume, with some tweaking of frequency curve.
What I wonder about, given the quality of current in ear monitors and DSP processing, why isn’t there the option to have an audiologist analyze one’s hearing, apply correction and output it via high quality IEM technology?
Granted, this may result in a much larger hearing "aid" than what is typical, but these would be used more for critical listening, rather than listening to traffic and your significant other while driving.