posted on Mar, 21 2011 @ 06:07 PM
You very well might be on to something with this one OP.
Not saying for sure, but my ears are VERY good (I am blind, so the ears have made up for it lol), and to me, they are extremely similar in nature. If
you take into accound the open air of the first and the possible underground version of the second, I could see it muffling the sound to shape it into
that noise.
Not saying yes for sure at all, but it really is intriguing.