I m very curious about this. I wear hearing protection when I play certain instruments. When I first put them on, either when I first got the plugs or if I spend time playing without the plugs for a while, everything is tiny, muffled, hard to hear. After I acclimate to using them, I have no issues to hearing with them on. I am thus, more sensitive, to sound. Above a certain attenuation level (15-20db), this ceases to be the case; the muffled never gets better and I canāt acclimate to that level.
Wouldnāt using HAs sort of be the opposite and decrease sensitivity? Maybe this sensitivity is around 5db (making up a number) rather than a large difference and negligible to most people but Iām really curious about the brain scienceā¦