Posted: Jan 29, 2012 2:19 am
Well, I don´t know what to say about this, but I think some of the videos has something to do with magnetic noise of some kind, but I can´t be sure. I know there are some faked videos, for example the one from Hungary, which for me sounds like an electric guitar with spring reverb. There are others I think is very interesting. I found this source with over 40 videos about the strange noise phenomenon