In the past, the phenomenon of "the hum" has been reported on here.
One location where it is heard is Taos, NM. Not everyone can hear it, and those that can are so annoyed by it that they usually move somewhere else. There are dozens of sites around the globe where a small percentage of people can hear "the hum". The source of this is unexplained. until now :-) The hum is most likely the holographic noise made by gravity waves. This noise was discovered in the LIGO/Gravity wave experiments which is ongoing. The noise is in the 40 - 130 Hz range. A good slide show on this is "Holographic Noise" by Craig Hogan of Fermilab. http://astro.fnal.gov/Retreat/Retreat0409/hogan.pdf These guys go so far as to suggest that our Universe is a 2-D hologram. which kinda fits the theme that comes up from time-to-time here - that our reality is essentially nothing more than a VR computer program, with some imperfections (ala several cult films).
