Oh man, my imagination...i just had to add this as a thought...

Perhaps the dulled unintelligible radio voices are similar to what a fetus might hear when it's closer to term? The rhythms of speech, the muffled droning etc.?

Foolishness? Maaaybe.....

Ok probably....but fun interesting thought. I swear it's a comfort noise for me. Why? I dunno. Been doing this forever to help fall asleep.

Not hijacking your thread Seeker! forgive me...just had to add that afore I go cold junk.