I actually got a couple EVPs from a paranormal society way back when. I don't quite recall the name since it was years ago. I think they were based in Utah? They would post pictures from their investigations, and possible EVPs. I saved the most interesting ones.
EVP.mp3
kinder.mp3
stone.mp3
I do know that there are EVPs that sound like pure nothingness, and then somehow the investigators get something that I didn't even come close to hearing. Ghost Adventures are horrible at this. I would hear "rgahaijstss jader" and they would get "leave now". Then they would come up with a convoluted story about who it could have been and whatnot. "Was this the man who died in this very room in 1959? Was he angry about the fact that I was provoking him?"