Places where there is utter silence do this too...even if the silence isn't total...but free from modern noise...even other peoples' voices. I was near The Sidlaws many years ago and there wasn't even breeze to rustle the heather, nothing but a skylark calling to the sun....bliss.
As the saying goes "Silence is golden." When found, like you say, silence does it too. Total silence takes you by surprise, almost in the same way that a sudden noise does. It's so uncommon, yet it's out there for those who try to find it..