Electronic Voice Phenomenon, also known as Raudive voices, named after the psychologist/parapsychologist Konstantin Raudive, who carried out some early research into the EVP phenomenon. The term is used in the area of paranormal research and relates to sounds, usually human voice or voices that are detected on audio recording devices such as digital recorders, analogue tape, video cameras and even telephone answering machines. The sounds or voices can not usually be heard by the human ear during the recording session, but can be detected during the playback using sound enhancers or amplification devices via a computer.
It has been said that theses voices which are normally just whispers, random words, short sentences or incoherent sounds are related to something called apophenia, a cognitive illusion whereby the mind will try to make sense of random or meaningless data, this is often attributed to the cause of much paranormal phenomena.
Some early pioneers of this technique for contacting spirits were Attila Von Szalay who began in 1941 using basic techniques with 78mm recordings and later in the 1950's he started using reel to reel tapes with more success. Other earlier researchers were Von Szalays assistant Raymond Bayless, film producer Friedrich Jurgenson, who while recording bird songs later found the audio contained what appeared to be his dead father and wife’s voices calling to him and as mentioned earlier Konstantin Raudive, who also worked with Jurgenson and Hans Bender in what was yet to be known as EVP research. Raudive compiled around 100 000 audio recordings, many of which he claimed were communications with deceased entities.
However, the earliest recordings of EVP, which pre-dates theses pioneers of paranormal research were made in 1901 by the anthropologist Waldemar Bogoras who unintentionally recorded spirit voices while making recordings of the indigenous tribal people in Siberia. On these recordings unexplained voices were detected speaking in English and Russian. Even to this day the origin of these voices remains unsolved and solid evidence in support of EVP. Thomas Edison also claimed that if there was a possibility our souls do transcend death, then an apparatus could be construed in order to allow communication between our existence and the spirit world.
Today the equipment that is used in this area of research has become more technologically advanced, obviously, but the fundamental principles remain the same. Paranormal investigators have access to a variety of digital equipment to help in research. The most popular tool of use being the digital voice recorder. Admittedly EVP is a technique that, although I have been aware of, was something I have not been involved in, but after doing some background research I have invested in an Olympus WS 6505 DSNS digital voice recorder myself and will be using this as a preferred method of investigation. The results I have viewed by other researchers of this field are fascinating and this is one of the most interesting, captivating and what appears to be rewarding techniques to use in terms of providing evidence
As usual, our friends in mainstream scientific study and sceptics of paranormal phenomena in general are wary of what exactly EVP is and what the cause of it may be. It has been suggested that the probable cause of EVP are stray fragments of radio transmissions, mobile phone conversations and other forms of electric transmissions. As mentioned briefly earlier auditory apophenia is another explanation and even just fraud in some instances and although this may be the case, the real reason still haunts within the realms of ambiguity.