“There really is a little computer in there”
Most people have a smartphone that is a VERY powerful computer. Without government stopping the process there could be an app and Bluetooth earbuds that would solve this issue. More likely dozens of apps tailored to individual hearing issues.
This is where its going. Smartphone controlled for attenuation of loud noises, amplification of specific noises, maybe even cancelling out tinitus a little. everything you need, just tweak the app a little.
How is your credit?