Unless there are known large predators out there, you can get by quite nicely with a .22 revolver. Use .22 CBs, or .22 subsonics, and there is very little muzzle blast. Your ears won't even ring one little bit. .22 shotshells for snakes.
Medium-size dangers require a .38 with shotshells, some mid-range wadcutters, and maybe a few hollowpoints. If you have to carry a handgun starting with a "4", things are serious enough that hearing damage will be a trivial concern.
There is also carrying gear that doesn't advertise that you're packin'.
Never had to.