Hearing aids have volume controls, which some clinicians disable for new users - as it causes more problems than it fixes.

And just like the TV remote they increase all sounds - good (speech) and bad (music and explosions).

The issue is not just "is it loud enough" but rather, "can you understand what you want to hear when you want to hear it?"

imagine yourself at a busy restaurant. you want to hear your spouses speach better, and the wait staff- but turning their speech up also turns up the people you do not want to hear.

how do you fix that?

noise reduction, speech enhancement, directional microphones are just some of the tools a hearing aid uses.

But ultimately what needs to happen is your brain works harder at comprehending what you want to hear(yes, it is work, and like all work people do not want to do it).

So they think...hmmm, I will just pay $xxxx.xx and I wont have to work anymore.