As for their barking causing hearing damage to themselves, dogs, humans, and
any variety of other mammals (and probably other animals) have a built-in
"noise suppressor" that prevents a problem with that. You can see this
easily yourself. Yell as loudly as you can, and then have a friend yell as
loudly as they can near you. His yell will sound MUCH louder than yours.


I think that's not from any noise suppression effects as much as the
directionality of the transmitter, though the effect is the same. Put your
friend's ear right next to your ear, and THEN have him yell as loudly as he
can. Compare that to yours.

Jose

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