Dave, thanks. I was referring to the version posted at the top of this thread, which I listened to directly, not downloaded. It was the same every time, about thirty times.

During the search for Xiana Fairchild I got involved with a psychic in South Dakota who suggested I use EVP to try to find the location of her body. We had found a possible site but it was a large area and so to narrow it down we needed to use various techniques like EVP and dowsing. Believe it or not, nothing worked.

Here's some EVP sites.
http://theshadowlands.net/ghostwav.htm

EVP is a way to communicate with spirits. Researchers believe that the voices of the dead can be recorded and played back on magnetic audio tape. It is the most modern way to communicate with the spirit world. Some skeptics believe that they are not voices of the dead but radio or CB transmissions.

It has been said that Thomas Edison was working on an EVP device. However the credit for discovering EVP goes to Fredrich Jurgenson when he was recording bird sonds in the Sweedish countryside and on play back he distinctly heard the voice of a man discussing nocturnal bird songs in Norwegian. He had heard nothing during the recording but many voices on playback, some giving him instructions on how to record more voices. EVPs are also called Raudive Voices after Konstantine Raudive who recorded 100,000 voices. He published "The Inaudible Made Audible". EVP research is done all over the world but most heavily in the United States and Germany. The Association for Voice Taping Research was founded in the 1970's in Germany, and American Association - Electronic Voice Phenomenon in 1982. Conferences are conducted world wide by engineers and electronics experts who devise special sophisticated equipment to record EVPs.

http://www.geocities.com/Hollywood/Hills/3799/sg-sounds.html

http://photos2.ghostweb.com/evp.html
The International Ghost Hunters Society has been a pioneer and leader in the EVP development for the ghost hunting community since 1996. Today, many ghost clubs include EVP on their web sites. Electronic Voice Phenomena is a process whereby the voice or voices of the dead are embedded onto magnetic recording tape by a process that we do not understand.

http://www.xs4all.nl/~wichm/dirvoic3.html
All through history there have been reports of voices and sounds manifesting at a distance from the person(s) who heard them. St.Paul on his way to Damascus was taken aback when he heard a voice saying "Saul, Saul, why do you persecute me?...And the men that journeyed with him stood speechless, hearing the voice but seeing no man."(Acts 9:4-7).
But also under less dramatic circumstances voices were heard, often in the vicinity of children - the so-called poltergeistphenomena.