 |
|
|
|
|
Ghosts & Spirits 101
EVP CLASSIFICATION SYSTEM
In 1928, Thomas Edison worked on equipment he
hoped would permit communication with the dead
In 1959, Friedrich Juergenson, a Swedish artist and film producer, went into the woods to record bird songs. On playback, he discovered paranormal voices. After four years of experimental recording, he called a press conference to announce to the world what he had discovered, and then wrote his book Roesterna Fraen Rymden (Voices from the Universe.)
In 1982, the American Association of Electronic Voice Phenomena (AA-EVP) was formed to study EVP.
The AA-EVP was founded by Sarah Estep,
who designed a classification system that is still
used by most paranormal researchers today.
PRISM uses the Estep EVP Classification System.
CLASS A
A clear and distinct voice or sound that is universally accepted and undisputed, because it must be
understood by anyone with normal hearing and without being told or
prompted to what is being said or heard. It can be heard without
the use of headphones.
CLASS B
A voice or sound that is distinct and fairly loud. This class of voice is more common and can be heard by most people after being told what to listen for. It is usually audible to experienced persons who
have learned the skill of listening to EVP. It can sometimes be heard without the use of headphones.
CLASS C
A faint and whispery voice or sound that can barely be heard and is sometimes indecipherable and unintelligible. It may have paranormal characteristics, such as
a mechanical sound. Most investigators would apply
objectivity and disregard it, but may save it for
reference purposes.
The AA-EVP has documented the following characteristics:
* More EVP messages are recorded at night or during stormy weather than during the day or when the weather is clear.
* EVP message length is typically very short, ranging from one word to short sentences.
* The voices involved in EVP messages often exhibit a shift in frequency outside of the normal human voice frequency range.
* Voices may be clearly male or female, old or young, even mechanical or "human" sounding. Some messages are delivered in a singing voice.
* EVP messages are often preceded by a sound that has been described as a "click" or a "thud."
* Messages are usually in the language of the experimenter, but individual experimenters have received other languages.
|
|
|
|
|
 |
