electronic voice phenomena
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ghost hunting Ghost hunting is the process of investigating locations that are reported to be haunted by ghosts. Typically, a ghost-hunting team will attempt to collect evidence supporting the existence of paranormal activity. Ghost hunters use a variety o ...
and
parapsychology Parapsychology is the study of alleged psychic phenomena ( extrasensory perception, telepathy, precognition, clairvoyance, psychokinesis (also called telekinesis), and psychometry) and other paranormal claims, for example, those related t ...
, electronic voice phenomena (EVP) are sounds found on electronic recordings that are interpreted as spirit voices. Parapsychologist Konstantīns Raudive, who popularized the idea in the 1970s, described EVP as typically brief, usually the length of a word or short phrase. Enthusiasts consider EVP to be a form of
paranormal Paranormal events are purported phenomena described in popular culture, folk, and other non-scientific bodies of knowledge, whose existence within these contexts is described as being beyond the scope of normal scientific understanding. Not ...
phenomenon often found in recordings with
static Static may refer to: Places *Static Nunatak, a nunatak in Antarctica United States * Static, Kentucky and Tennessee *Static Peak, a mountain in Wyoming **Static Peak Divide, a mountain pass near the peak Science and technology Physics *Static el ...
or other
background noise Background noise or ambient noise is any sound other than the sound being monitored (primary sound). Background noise is a form of noise pollution or interference. Background noise is an important concept in setting noise levels. Background n ...
. Scientists regard EVP as a form of auditory
pareidolia Pareidolia (; ) is the tendency for perception to impose a meaningful interpretation on a nebulous stimulus, usually visual, so that one sees an object, pattern, or meaning where there is none. Common examples are perceived images of animals, ...
(interpreting random sounds as voices in one's own language) and a
pseudoscience Pseudoscience consists of statements, beliefs, or practices that claim to be both scientific and factual but are incompatible with the scientific method. Pseudoscience is often characterized by contradictory, exaggerated or unfalsifiable claim ...
promulgated by popular culture. Prosaic explanations for EVP include
apophenia Apophenia () is the tendency to perceive meaningful connections between unrelated things. The term (German: ' from the Greek verb ''ἀποφαίνειν'' (apophaínein)) was coined by psychiatrist Klaus Conrad in his 1958 publication on the b ...
(perceiving patterns in random information), equipment artifacts, and hoaxes.


History

As the
Spiritualist Spiritualism is the metaphysical school of thought opposing physicalism and also is the category of all spiritual beliefs/views (in monism and dualism) from ancient to modern. In the long nineteenth century, Spiritualism (when not lowercase) ...
religious movement Various sociological classifications of religious movements have been proposed by scholars. In the sociology of religion, the most widely used classification is the church-sect typology. The typology is differently construed by different sociolo ...
became prominent in the 1840s–1940s with a distinguishing belief that the spirits of the dead can be contacted by mediums, new technologies of the era including
photography Photography is the art, application, and practice of creating durable images by recording light, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film. It is emplo ...
were employed by spiritualists in an effort to demonstrate contact with a spirit world. So popular were such ideas that
Thomas Edison Thomas Alva Edison (February 11, 1847October 18, 1931) was an American inventor and businessman. He developed many devices in fields such as electric power generation, mass communication, sound recording, and motion pictures. These inventi ...
was asked in an interview with ''
Scientific American ''Scientific American'', informally abbreviated ''SciAm'' or sometimes ''SA'', is an American popular science magazine. Many famous scientists, including Albert Einstein and Nikola Tesla, have contributed articles to it. In print since 1845, it ...
'' to comment on the possibility of using his inventions to communicate with spirits. He replied that if the spirits were only capable of subtle influences, a sensitive recording device would provide a better chance of spirit communication than the table tipping and
ouija boards The ouija ( , ), also known as a spirit board or talking board, is a flat board marked with the letters of the Latin alphabet, the numbers 0–9, the words "yes", "no", occasionally "hello" and "goodbye", along with various symbols and grap ...
mediums employed at the time. However, there is no indication that Edison ever designed or constructed a device for such a purpose.Carroll, Robert Todd, '' The Skeptic's Dictionary'' 2003, Wiley Publishing Company, As
sound recording Sound recording and reproduction is the electrical, mechanical, electronic, or digital inscription and re-creation of sound waves, such as spoken voice, singing, instrumental music, or sound effects. The two main classes of sound recording ...
became widespread, mediums explored using this technology to demonstrate communication with the dead as well. Spiritualism declined in the latter part of the 20th century, but attempts to use portable recording devices and modern digital technologies to communicate with spirits continued.


Early interest

American photographer Attila von Szalay was among the first to try recording what he believed to be voices of the dead as a way to augment his investigations in photographing ghosts. He began his attempts in 1941 using a 78 rpm record, but it wasn't until 1956 — after switching to a reel-to-reel tape recorder — that he believed he was successful. Working with Raymond Bayless, von Szalay conducted several recording sessions with a custom-made apparatus, consisting of a microphone in an insulated cabinet connected to an external recording device and speaker. Szalay reported finding many sounds on the tape that could not be heard on the speaker at the time of recording, some of which were recorded when there was no one in the cabinet. He believed these sounds to be the voices of discarnate spirits. Among the first recordings believed to be spirit voices were such messages as "This is G!", "Hot dog, Art!", and "Merry Christmas and Happy New Year to you all". Von Szalay and Raymond Bayless's work was published by the Journal of the
American Society for Psychical Research The American Society for Psychical Research (ASPR) is the oldest psychical research organization in the United States dedicated to parapsychology. It maintains offices and a library, in New York City, which are open to both members and the gen ...
in 1959. Bayless later went on to co-author the 1979 book, ''Phone Calls From the Dead''. In 1959, Swedish painter and film producer Friedrich Jürgenson was recording bird songs. Upon playing the tape later, he heard what he interpreted to be his dead father's voice and then the spirit of his deceased wife calling his name. He went on to make several more recordings, including one that he said contained a message from his late mother.


Raudive voices

Konstantin Raudive, a Latvian psychologist who had taught at the
Uppsala University Uppsala University ( sv, Uppsala universitet) is a public research university in Uppsala, Sweden. Founded in 1477, it is the oldest university in Sweden and the Nordic countries still in operation. The university rose to significance during ...
, Sweden and who had worked in conjunction with Jürgenson, made over 100,000 recordings which he described as being communications with discarnate people. Some of these recordings were conducted in an RF-screened laboratory and contained words Raudive said were identifiable. In an attempt to confirm the content of his collection of recordings, Raudive invited listeners to hear and interpret them. He believed that the clarity of the voices heard in his recordings implied that they could not be readily explained by normal means. Raudive published his first book, ''Breakthrough: An Amazing Experiment in Electronic Communication with the Dead'' in 1968 and it was translated into English in 1971.


Spiricom and Frank's Box

In 1980, William O'Neil constructed an electronic audio device called "The Spiricom". O'Neil claimed the device was built to specifications which he received
psychic A psychic is a person who claims to use extrasensory perception (ESP) to identify information hidden from the normal senses, particularly involving telepathy or clairvoyance, or who performs acts that are apparently inexplicable by natural laws ...
ally from George Mueller, a scientist who had died six years previously. At a
Washington, DC ) , image_skyline = , image_caption = Clockwise from top left: the Washington Monument and Lincoln Memorial on the National Mall, United States Capitol, Logan Circle, Jefferson Memorial, White House, Adams Morg ...
press conference on April 6, 1982, O'Neil stated that he was able to hold two-way conversations with spirits through the Spiricom device, and provided the design specifications to researchers for free. However, nobody is known to have replicated the results O'Neil claimed using his own Spiricom devices. O'Neil's partner, retired industrialist George Meek, attributed O'Neil's success, and the inability of others to replicate it, to O'Neil's mediumistic abilities forming part of the loop that made the system work. In 2020 Kenny Biddle wrote a comprehensive article explaining the origins of the Spiricom as developed by O'Neil and Meek. He was prompted to do so by the re-emergence of the device on the television series '' Ghosthunters''. He comprehensively debunked the "science" behind the device in both the original development and the ''Ghosthunters'' episode. Another electronic device specifically constructed in an attempt to capture EVP is "Frank's Box" or the "Ghost Box", created in 2002 by EVP enthusiast Frank Sumption for supposed real-time communication with the dead. Sumption claims he received his design instructions from the spirit world. The device is described as a combination
white noise In signal processing, white noise is a random signal having equal intensity at different frequencies, giving it a constant power spectral density. The term is used, with this or similar meanings, in many scientific and technical disciplines ...
generator and
AM radio AM broadcasting is radio broadcasting using amplitude modulation (AM) transmissions. It was the first method developed for making audio radio transmissions, and is still used worldwide, primarily for medium wave (also known as "AM band") transmis ...
receiver modified to sweep back and forth through the AM band selecting split-second snippets of sound. Critics of the device say its effect is subjective and incapable of being replicated, and since it relies on radio noise, any meaningful response a user gets is purely coincidental, or simply the result of
pareidolia Pareidolia (; ) is the tendency for perception to impose a meaningful interpretation on a nebulous stimulus, usually visual, so that one sees an object, pattern, or meaning where there is none. Common examples are perceived images of animals, ...
. Paranormal researcher
Ben Radford Ben is frequently used as a shortened version of the given names Benjamin, Benedict, Bennett or Benson, and is also a given name in its own right. Ben (in he, בֶּן, ''son of'') forms part of Hebrew surnames, e.g. Abraham ben Abraham ( he, ...
writes that Frank's Box is a "modern version of the
Ouija board The ouija ( , ), also known as a spirit board or talking board, is a flat board marked with the letters of the Latin alphabet, the numbers 0–9, the words "yes", "no", occasionally "hello" and "goodbye", along with various symbols and grap ...
... also known as the 'broken radio'".


Interest in the 21st century and late 20th century

In 1982, Sarah Estep founded the American Association of Electronic Voice Phenomena (AA-EVP) in
Severna Park, Maryland Severna Park is a census-designated place (CDP) in Anne Arundel County, Maryland, United States. Severna Park is part of the Baltimore-Washington Metropolitan Area, and is located approximately north of Annapolis, south of Baltimore and east ...
, a nonprofit organization with the purpose of increasing awareness of EVP, and of teaching standardized methods for capturing it. Estep began her exploration of EVP in 1976, and says she has made hundreds of recordings of messages from deceased friends, relatives, and extraterrestrials whom she speculated originated from other planets or dimensions. The term Instrumental Trans-Communication (ITC) was coined by Ernst Senkowski in the 1970s to refer more generally to communication through any sort of electronic device such as tape recorders, fax machines, television sets or computers between spirits or other discarnate entities and the living.Baruss, Imants (2001)
''Failure to Replicate Electronic Voice Phenomenon''
, Journal of Scientific Exploration, V15#3, 0892-3310/01
Cardoso, Anabela (2003) "ITC Voices: Contact with Another Reality?" One particularly famous claimed incidence of ITC occurred when the image of EVP enthusiast Friedrich Jürgenson (whose funeral was held that day) was said to have appeared on a television in the home of a colleague, which had been purposefully tuned to a vacant channel. ITC enthusiasts also look at the TV and video camera feedback loop of the
Droste effect The Droste effect (), known in art as an example of '' mise en abyme'', is the effect of a picture recursively appearing within itself, in a place where a similar picture would realistically be expected to appear. This produces a loop which i ...
." In 1979, parapsychologist
D. Scott Rogo Douglas Scott Rogo (February 1, 1950 – August 18, 1990) was a writer, journalist and researcher on subjects related to parapsychology. Rogo was murdered in 1990 at the age of 40.Hansen, George P.. ''D. Scott Rogo and His Contributions to Parapsy ...
described an alleged
paranormal Paranormal events are purported phenomena described in popular culture, folk, and other non-scientific bodies of knowledge, whose existence within these contexts is described as being beyond the scope of normal scientific understanding. Not ...
phenomenon in which people report that they receive simple, brief, and usually single-occurrence
telephone A telephone is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be easily heard directly. A telephone converts sound, typically and most efficiently the human voice, into e ...
calls from spirits of deceased relatives, friends, or strangers.
Rosemary Guiley Rosemary Ellen Guiley (July 8, 1950 - July 18, 2019) was an American writer on topics related to spirituality, the occult, and the paranormal. She was also a radio show host, a certified hypnotist, a board director of the "National Museum of Mys ...
has written "within the parapsychology establishment, Rogo was often faulted for poor scholarship, which, critics said, led to erroneous conclusions." In 1995, the parapsychologist
David Fontana David G. J. Fontana FBPsS (1 November 1934 – 18 October 2010) was a British psychologist, parapsychologist and author. He was Professor of Psychology at Cardiff University. He was also visiting professor at Liverpool John Moores University and ...
proposed in an article that poltergeists could haunt tape recorders. He speculated that this may have happened to the parapsychologist Maurice Grosse who investigated the
Enfield Poltergeist The Enfield poltergeist was a claim of supernatural activity at 284 Green Street, a council house in Brimsdown, Enfield, London, England, United Kingdom, between 1977 and 1979. The alleged poltergeist activity centred around sisters Janet (11) ...
case. However, Tom Flynn a media expert for the
Committee for Skeptical Inquiry The Committee for Skeptical Inquiry (CSI), formerly known as the Committee for the Scientific Investigation of Claims of the Paranormal (CSICOP), is a program within the US non-profit organization Center for Inquiry (CFI), which seeks to "pro ...
examined Fontana's article and suggested an entirely naturalistic explanation for the phenomena. According to the skeptical investigator
Joe Nickell Joe Nickell (born December 1, 1944) is an American skeptic and investigator of the paranormal. Nickell is senior research fellow for the Committee for Skeptical Inquiry and writes regularly for their journal, ''Skeptical Inquirer''. He is also ...
"Occasionally, especially with older tape and under humid conditions, as the tape travels it can adhere to one of the guide posts. When this happens on a deck where both supply and take-up spindles are powered, the tape continues to feed, creating a fold. It was such a loop of tape, Flynn theorizes, that threaded its way amid the works of Grosse's recorder." In 1997, Imants Barušs, of the Department of Psychology at the University of Western Ontario, conducted a series of experiments using the methods of EVP investigator Konstantin Raudive, and the work of "instrumental transcommunication researcher" Mark Macy, as a guide. A radio was tuned to an empty frequency, and over 81 sessions a total of 60 hours and 11 minutes of recordings were collected. During recordings, a person either sat in silence or attempted to make verbal contact with potential sources of EVP. Barušs stated that he did record several events that sounded like voices, but they were too few and too random to represent viable data and too open to interpretation to be described definitively as EVP. He concluded: "While we did replicate EVP in the weak sense of finding voices on audio tapes, none of the phenomena found in our study was clearly anomalous, let alone attributable to discarnate beings. Hence we have failed to replicate EVP in the strong sense." The findings were published in the '' Journal of Scientific Exploration'' in 2001, and include a literature review. In 2005, the ''Journal of the
Society for Psychical Research The Society for Psychical Research (SPR) is a nonprofit organisation in the United Kingdom. Its stated purpose is to understand events and abilities commonly described as psychic or paranormal. It describes itself as the "first society to co ...
'' published a report by paranormal investigator Alexander MacRae. MacRae conducted recording sessions using a device of his own design that generated EVP. In an attempt to demonstrate that different individuals would interpret EVP in the recordings the same way, MacRae asked seven people to compare some selections to a list of five phrases he provided, and to choose the best match. MacRae said the results of the listening panels indicated that the selections were of paranormal origin. Portable digital voice recorders are currently the technology of choice for some EVP investigators. Since some of these devices are very susceptible to Radio Frequency (RF) contamination, EVP enthusiasts sometimes try to record EVP in RF- and sound-screened rooms. Some EVP enthusiasts describe hearing the words in EVP as an ability, much like learning a new language. Skeptics suggest that the claimed instances may be misinterpretations of natural phenomena, inadvertent influence of the electronic equipment by researchers, or deliberate influencing of the researchers and the equipment by third parties. EVP and ITC are seldom researched within the
scientific community The scientific community is a diverse network of interacting scientists. It includes many " sub-communities" working on particular scientific fields, and within particular institutions; interdisciplinary and cross-institutional activities are als ...
, so most research in the field is carried out by amateur researchers who lack training and resources to conduct scientific research, and who are motivated by subjective notions.


Explanations and origins

Paranormal Paranormal events are purported phenomena described in popular culture, folk, and other non-scientific bodies of knowledge, whose existence within these contexts is described as being beyond the scope of normal scientific understanding. Not ...
claims for the origin of EVP include living humans imprinting thoughts directly on an electronic medium through
psychokinesis Psychokinesis (from grc, ψυχή, , soul and grc, κίνησις, , movement, label=ㅤ), or telekinesis (from grc, τηλε, , far off and grc, κίνησις, , movement, label=ㅤ), is a hypothetical psychic ability allowing a person ...
and communication by discarnate entities such as spirits, nature energies, beings from other dimensions, or extraterrestrials.Estep, Sarah, "''Voices Of Eternity''," page 144
/ref> Paranormal explanations for EVP generally assume production of EVP by a communicating intelligence through means other than the typical functioning of communication technologies. Natural explanations for reported instances of EVP tend to dispute this assumption explicitly and provide explanations which do not require novel mechanisms that are not based on recognized scientific phenomena. One study, by psychologist Imants Barušs, was unable to replicate suggested paranormal origins for EVP recorded under controlled conditions.
Brian Regal Brian Regal is an American historian of science, skeptic and writer. He is an associate professor of the history of science at Kean University in New Jersey. Regal is the author of an encyclopedia of pseudoscience, as well as ''Searching for Sas ...
in ''Pseudoscience: A Critical Encyclopedia'' (2009) has written "A case can be made for the idea that many EVPs are artifacts of the recording process itself with which the operators are unfamiliar. The majority of EVPs have alternative, nonspiritual sources; anomalous ones have no clear proof they are of spiritual origin."


Natural explanations

There are a number of simple scientific explanations that can account for why some listeners to the static on audio devices may believe they hear voices, including radio interference and the tendency of the human brain to recognize patterns in random stimuli. Some recordings may be hoaxes created by frauds or pranksters.


Psychology and perception

''Auditory
pareidolia Pareidolia (; ) is the tendency for perception to impose a meaningful interpretation on a nebulous stimulus, usually visual, so that one sees an object, pattern, or meaning where there is none. Common examples are perceived images of animals, ...
'' is a situation created when the brain incorrectly interprets random patterns as being familiar patterns. In the case of EVP it could result in an observer interpreting random noise on an audio recording as being the familiar sound of a human voice. The propensity for an apparent voice heard in white noise recordings to be in a language understood well by those researching it, rather than in an unfamiliar language, has been cited as evidence of this, and a broad class of phenomena referred to by author Joe Banks as ''
Rorschach Rorschach may refer to: * Hermann Rorschach, a Swiss psychiatrist ** Rorschach test, his psychological evaluation method involving inkblots * Rorschach (character), a character from the comics ''Watchmen'' * Rorschach (comic book), a 2020 comic * R ...
Audio'' has been described as a global explanation for all manifestations of EVP.Joe Banks "Rorschach Audio", the "Ghost Orchid" CD sleevenotes, PARC /
Ash International Touch (sometimes mistakenly written 'Touch Records' and sometimes written Touch Music, which is technically the publishing side of the company) is a British audio-visual organisation, operating the Touch label. Touch was founded in 1982 by Jon ...
, 1999
Joe Banks "Rorschach Audio: A Lecture at The Royal Society of British Sculptors", ''Diffusion'' 8, pp. 2-6, Sonic Arts Network, 2000 In a 2019 investigation of a supposed haunted painting in a West Virginia museum, paranormal researcher Kenny Biddle investigated the claims made by the museum owner and ghost hunters that an EVP recording clearly saying the woman's name, "Annie", is really the voice of the woman in the portrait. The name Annie is written on the back of the portrait, which primes anyone listening for the name, to know what name to listen for. The EVP was created using a
Radio Shack RadioShack, formerly RadioShack Corporation, is an American retailer founded in 1921. At its peak in 1999, RadioShack operated over 8,000 worldwide stores named RadioShack or Tandy Electronics in the United States, Mexico, United Kingdom, Austra ...
radio "modified to allow it to continually scan through the available AM or FM frequencies without muting the sound." Regarding a general question by the ghost hunter "What is your name?", Biddle writes, "I can guarantee sooner or later you'll hear something that sounds like a name, and there is a good chance of being a name, because you're listening to radio broadcasts, news reports, commercials, and so on—which often include names." Biddle lists words such as "company, anything, anyone, mahogany, many, or even any." as words that can be commonly heard while listening to the radio. The phrase '"...and he..."' would also sound like "Annie" to anyone primed to listen for the name Annie. Skeptics such as David Federlein, Chris French,
Terence Hines Terence Hines (born 22 March 1951) is a professor of psychology at Pace University, New York, and adjunct professor of neurology at the New York Medical College; he is also a science writer. Hines has a BA from Duke University, and an MA and P ...
and
Michael Shermer Michael Brant Shermer (born September 8, 1954) is an American science writer, historian of science, executive director of The Skeptics Society, and founding publisher of ''Skeptic'' magazine, a publication focused on investigating pseudoscientifi ...
say that EVP are usually recorded by raising the " noise floor" – the electrical noise created by all electrical devices – in order to create
white noise In signal processing, white noise is a random signal having equal intensity at different frequencies, giving it a constant power spectral density. The term is used, with this or similar meanings, in many scientific and technical disciplines ...
. When this noise is
filtered Filtration is a physical separation process that separates solid matter and fluid from a mixture using a ''filter medium'' that has a complex structure through which only the fluid can pass. Solid particles that cannot pass through the filter m ...
, it can be made to produce noises which sound like speech. Federlein says that this is no different from using a wah pedal on a guitar, which is a focused sweep filter which moves around the spectrum and creates open vowel sounds. This, according to Federlein, sounds exactly like some EVP. This, in combination with such things as cross modulation of radio stations or faulty ground loops can cause the impression of paranormal voices. The human brain evolved to recognize patterns, and if a person listens to enough noise the brain will detect words, even when there is no intelligent source for them. Expectation also plays an important part in making people believe they are hearing voices in random noise. ''
Apophenia Apophenia () is the tendency to perceive meaningful connections between unrelated things. The term (German: ' from the Greek verb ''ἀποφαίνειν'' (apophaínein)) was coined by psychiatrist Klaus Conrad in his 1958 publication on the b ...
'' is related to, but distinct from pareidolia." Apophenia is defined as "the spontaneous finding of connections or meaning in things which are random, unconnected or meaningless", and has been put forward as a possible explanation. According to the psychologist
James Alcock James E. Alcock (born 24 December 1942) is a Canadian educator. He has been a Professor of Psychology at York University (Canada) since 1973. Alcock is a noted critic of parapsychology and is a Fellow and Member of the Executive Council for the C ...
what people hear in EVP recordings can best be explained by apophenia, cross-modulation or expectation and
wishful thinking Wishful thinking is the formation of beliefs based on what might be pleasing to imagine, rather than on evidence, rationality, or reality. It is a product of resolving conflicts between belief and desire. Methodologies to examine wishful thin ...
. Alcock concluded "Electronic Voice Phenomena are the products of hope and expectation; the claims wither away under the light of scientific scrutiny."


Physics

Interference, for example, is seen in EVP recordings, especially those recorded on devices which contain
RLC circuit An RLC circuit is an electrical circuit consisting of a resistor (R), an inductor (L), and a capacitor (C), connected in series or in parallel. The name of the circuit is derived from the letters that are used to denote the constituent compon ...
ry. These cases represent radio signals of voices or other sounds from broadcast sources. Interference from CB Radio transmissions and wireless baby monitors, or anomalies generated through cross modulation from other electronic devices, are all documented phenomena. It is even possible for circuits to
resonate Resonance describes the phenomenon of increased amplitude that occurs when the frequency of an applied periodic force (or a Fourier component of it) is equal or close to a natural frequency of the system on which it acts. When an oscillat ...
without any internal power source by means of
radio reception Radio is the technology of signaling and communicating using radio waves. Radio waves are electromagnetic waves of frequency between 30 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmit ...
. ''Capture errors'' are anomalies created by the method used to capture audio signals, such as noise generated through the over-amplification of a signal at the point of recording.Smith, Steven W. (2002) ''Digital Signal Processing - A Practical Guide for Engineers and Scientists'', Newnes, Artifacts created during attempts to boost the clarity of an existing recording might explain some EVP. Methods include re-sampling, frequency isolation, and noise reduction or enhancement, which can cause recordings to take on qualities significantly different from those that were present in the original recording. Randi, James (2006-06-09),
Just Where is Lou Gentile?
',
The very first EVP recordings may have originated from the use of tape recording equipment with poorly aligned erasure and recording heads, resulting in the incomplete erasure of previous audio recordings on the tape. This could allow a small percentage of previous content to be superimposed or mixed into a new 'silent' recording.


Sporadic meteors and meteor showers

For all radio transmissions above 30 MHz (which are not reflected by the ionosphere) there is a possibility of meteor reflection of the radio signal.P Harvey & KJ Bohlman. Stereo radio F.M. Handbook, Chapter 7, 1974 Meteors leave a trail of ionised particles and electrons as they pass through the upper atmosphere (a process called ablation) which reflect transmission radio waves which would usually flow into space.L.A. Manning et al., Determination of ionospheric electron distribution, Proc Inst Radio Engineers Vol 37, pp599-603 (1949) These reflected waves are from transmitters which are below the horizon of the received meteor reflection. In Europe this means the brief scattered wave may carry a foreign voice which can interfere with radio receivers. Meteor reflected radio waves last between 0.05 seconds and 1 second, depending on the size of the meteor.


Organizations that show interest in EVP

There are a number of organizations dedicated to studying EVP and instrumental transcommunication, or which otherwise express interest in the subject. Individuals within these organizations may participate in investigations, author books or journal articles, deliver presentations, and hold conferences where they share experiences. In addition, organizations exist which dispute the validity of the phenomena on scientific grounds. The Association TransCommunication (ATransC), formerly the American Association of Electronic Voice Phenomena (AA-EVP), and the International Ghost Hunters Society conduct ongoing investigations of EVP and ITC including collecting examples of purported EVP available over the internet. The Rorschach Audio Project, initiated by sound artist Joe Banks, which presents EVP as a product of radio interference combined with auditory pareidolia and the Interdisciplinary Laboratory for Biopsychocybernetics Research, a non-profit organization dedicated to studying anomalous phenomena related to neurophysiological conditions. According to the AA-EVP it is "the only organized group of researchers we know of specializing in the study of ITC".
Parapsychologists Parapsychology is the study of alleged psychic phenomena (extrasensory perception, telepathy, precognition, clairvoyance, psychokinesis (also called telekinesis), and psychometry) and other paranormal claims, for example, those related to near ...
and
Spiritualists Spiritualism is the metaphysics, metaphysical school of thought opposing physicalism and also is the category of all spiritual beliefs/views (in monism and Mind-body dualism, dualism) from ancient to modern. In the long nineteenth century, Spir ...
have an ongoing interest in EVP. Many Spiritualists experiment with a variety of techniques for spirit communication which they believe provide evidence of the continuation of life. According to the National Spiritualist Association of Churches, "An important modern day development in mediumship is spirit communications via an electronic device. This is most commonly known as Electronic Voice Phenomena (EVP)". An informal survey by the organization's Department Of Phenomenal Evidence cites that 1/3 of churches conduct sessions in which participants seek to communicate with spirit entities using EVP." The
James Randi Educational Foundation James Randi Educational Foundation (JREF) is an American grant-making institution founded in 1996 by magician and skeptic James Randi. As a nonprofit organization, the mission of JREF includes educating the public and the media on the dangers of ...
offered a million dollars for proof that any phenomena, including EVP, are caused paranormally.


Demographics


United States

In 2015, an investigation by Associate Professor of Sociology Marc Eaton on the demography of United States paranormal groups that used electronic voice phenomenon found an overrepresentation of white participants, raised in the Roman Catholic Church (which is only 21% of the U.S. population), mainly with some post-secondary education. Although a preponderance of research shows that women and "less socially integrated individuals" are more likely to believe in ghosts, the demographic samples in Eaton's research did not reflect this.


Cultural impact

The concept of EVP has influenced popular culture. It is popular as an entertaining pursuit, as in
ghost hunting Ghost hunting is the process of investigating locations that are reported to be haunted by ghosts. Typically, a ghost-hunting team will attempt to collect evidence supporting the existence of paranormal activity. Ghost hunters use a variety o ...
, and as a means of dealing with grief. It has influenced literature, radio, film, television, and music.


Groups

Investigation of EVP is the subject of hundreds of regional and national groups and Internet message boards." Paranormal investigator
John Zaffis John Zaffis (born December 18, 1955) is a paranormal researcher born and based in Connecticut, United States. He starred in the SyFy paranormal reality TV show, '' Haunted Collector'', and runs the Paranormal and Demonology Research Society of New ...
claims, "There's been a boom in ghost hunting ever since the Internet took off." Investigators, equipped with electronic gear—like
EMF meter EMF measurements are measurements of ambient (surrounding) electromagnetic fields that are performed using particular sensors or probes, such as EMF meters. These probes can be generally considered as ''antennas'' although with different charact ...
s, video cameras, and audio recorders—scour reportedly haunted venues, trying to uncover visual and audio evidence of
ghost A ghost is the soul or spirit of a dead person or animal that is believed to be able to appear to the living. In ghostlore, descriptions of ghosts vary widely from an invisible presence to translucent or barely visible wispy shapes, to re ...
s. Many use portable recording devices in an attempt to capture EVP.


Films

Films involving EVP include ''
Poltergeist In ghostlore, a poltergeist ( or ; German for "rumbling ghost" or "noisy spirit") is a type of ghost or spirit that is responsible for physical disturbances, such as loud noises and objects being moved or destroyed. Most claims or fictional desc ...
'', ''
The Sixth Sense ''The Sixth Sense'' is a 1999 American psychological thriller film written and directed by M. Night Shyamalan. It stars Bruce Willis as a child psychologist whose patient ( Haley Joel Osment) claims he can see and talk to the dead. Released ...
'', and ''
White Noise In signal processing, white noise is a random signal having equal intensity at different frequencies, giving it a constant power spectral density. The term is used, with this or similar meanings, in many scientific and technical disciplines ...
''."


Video games

'' Sylvio'' is an indie-developed first-person horror
adventure An adventure is an exciting experience or undertaking that is typically bold, sometimes risky. Adventures may be activities with danger such as traveling, exploring, skydiving, mountain climbing, scuba diving, river rafting, or other extreme ...
video game Video games, also known as computer games, are electronic games that involves interaction with a user interface or input device such as a joystick, controller, keyboard, or motion sensing device to generate visual feedback. This feedba ...
released on Steam in June 2015 for
Microsoft Windows Windows is a group of several proprietary graphical operating system families developed and marketed by Microsoft. Each family caters to a certain sector of the computing industry. For example, Windows NT for consumers, Windows Server for ...
,
PlayStation 4 The PlayStation 4 (PS4) is a home video game console developed by Sony Interactive Entertainment. Announced as the successor to the PlayStation 3 in February 2013, it was launched on November 15, 2013, in North America, November 29, 2013 i ...
,
Xbox One The Xbox One is a home video game console developed by Microsoft. Announced in May 2013, it is the successor to Xbox 360 and the third base console in the Xbox series of video game consoles. It was first released in North America, parts of ...
and,
OS X macOS (; previously OS X and originally Mac OS X) is a Unix operating system developed and marketed by Apple Inc. since 2001. It is the primary operating system for Apple's Mac computers. Within the market of desktop and la ...
, utilizing the Unity engine. The game is about an audio recordist called Juliette Waters, who records the voices of ghosts through electronic voice phenomenon. She finds herself trapped in an old family park, shut down since a landslide in 1971, and she now needs to use her recorder to survive the night. A sequel, '' Sylvio 2'', was released on October 11, 2017. ''
Phasmophobia The fear of ghosts in many human cultures is based on beliefs that some ghosts may be malevolent towards people and dangerous ''(within the range of all possible attitudes, including mischievous, benign, indifferent, etc.''). It is related to fea ...
'' is a
co-op A cooperative (also known as co-operative, co-op, or coop) is "an autonomous association of persons united voluntarily to meet their common economic, social and cultural needs and aspirations through a jointly owned and democratically-control ...
horror
video game Video games, also known as computer games, are electronic games that involves interaction with a user interface or input device such as a joystick, controller, keyboard, or motion sensing device to generate visual feedback. This feedba ...
, in which a team of one to four players play as ghost hunters who try to identify hostile ghosts in varying locations. The game features a Spirit Box item used to capture EVPs of certain ghost types, which helps the players identify the type of the ghost they're dealing with. EVPs in ''Phasmophobia'' consist of singular words, such as "here", "attack", "death", "adult", etc., each denoting a response to a player initiated question.


TV and radio

It has been featured on television series like ''
Ghost Whisperer ''Ghost Whisperer'' is an American supernatural television series, which ran on CBS from September 23, 2005, to May 21, 2010. The series follows the life of Melinda Gordon ( Jennifer Love Hewitt), who has the ability to see and communicate wit ...
'', '' In Search Of… (1981)'', ''
The Omega Factor ''The Omega Factor'' (stylized as ''The Ωmega Factor'') is a British television series produced by BBC Scotland in 1979. It was created by Jack Gerson and produced by George Gallaccio, and transmitted in ten weekly episodes between 13 June and ...
'', ''
A Haunting ''A Haunting'' is an American paranormal drama anthology television series that depicts eyewitness accounts of alleged possession, exorcism, and ghostly encounters. The program features narrations, interviews, and dramatic re-enactments based on ...
'', '' Ghost Hunters'', ''
MonsterQuest ''MonsterQuest'' (sometimes written as ''Monsterquest'' or ''Monster Quest'') is an American television series that originally aired from October 31, 2007 to March 24, 2010 on the History channel. Produced by Whitewolf Entertainment, the program de ...
'', ''
Ghost Adventures ''Ghost Adventures'' is an American paranormal and reality television series that premiered on October 17, 2008, on the Travel Channel before moving to Discovery+ in 2021. An independent film of the same name originally aired on the Sci-Fi Cha ...
'', ''
The Secret Saturdays ''The Secret Saturdays'' is an American animated television series created by Canadian cartoonist Jay Stephens for Cartoon Network. It debuted on October 3, 2008 in the United States. The series follows the adventures of the Saturdays, a family of ...
'', '' Fact or Faked: Paranormal Files'', ''
Supernatural Supernatural refers to phenomena or entities that are beyond the laws of nature. The term is derived from Medieval Latin , from Latin (above, beyond, or outside of) + (nature) Though the corollary term "nature", has had multiple meanings si ...
'', '' Derren Brown Investigates'', '' Ghost Lab and Buzzfeed Unsolved: Supernatural'' *''
Coast To Coast AM ''Coast to Coast AM'' is an American late-night radio talk show that deals with a variety of topics. Most frequently the topics relate to either the paranormal or conspiracy theories. It was hosted by creator Art Bell from its inception in 1 ...
'' hosts
George Noory George Ralph Noory (born June 4, 1950) is an American radio talk show host. Since January 2003, Noory has been the weekday host of the late-night radio talk show ''Coast to Coast AM''. The program is syndicated to hundreds of radio stations in ...
and
Art Bell Arthur William Bell III (June 17, 1945 – April 13, 2018) was an American broadcaster and author. He was the founder and the original host of the paranormal-themed radio program ''Coast to Coast AM'', which is syndicated on hundreds of ...
have explored the topic of EVP with featured guests such as Brendan Cook and Barbara McBeath of the Ghost Investigators Society, and paranormal investigator and 'demonologist' Lou Gentile. *''The Spirit of John Lennon'' was a pay-per-view
séance A séance or seance (; ) is an attempt to communicate with spirits. The word ''séance'' comes from the French word for "session", from the Old French ''seoir'', "to sit". In French, the word's meaning is quite general: one may, for example, spea ...
broadcast in 2006, in which TV crew members, a
psychic A psychic is a person who claims to use extrasensory perception (ESP) to identify information hidden from the normal senses, particularly involving telepathy or clairvoyance, or who performs acts that are apparently inexplicable by natural laws ...
, and an "expert in paranormal activity" claim the spirit of former Beatle
John Lennon John Winston Ono Lennon (born John Winston Lennon; 9 October 19408 December 1980) was an English singer, songwriter, musician and peace activist who achieved worldwide fame as founder, co-songwriter, co-lead vocalist and rhythm guitarist of ...
made contact with them through what was described as "an Electronic Voice Phenomenon (EVP)." *The ''
Doctor Who ''Doctor Who'' is a British science fiction television series broadcast by the BBC since 1963. The series depicts the adventures of a Time Lord called the Doctor, an extraterrestrial being who appears to be human. The Doctor explores the ...
'' episode " Dark Water" features a fictional facility which was allegedly based on this principle. * The Egyptian series ''Nasiby w Kesmetk'' episode 6


Novels

''
Legion Legion may refer to: Military * Roman legion, the basic military unit of the ancient Roman army * Spanish Legion, an elite military unit within the Spanish Army * Legion of the United States, a reorganization of the United States Army from 179 ...
'', a 1983 novel by
William Peter Blatty William Peter Blatty (January 7, 1928 – January 12, 2017) was an American writer, director and producer. He is best known for his 1971 novel, ''The Exorcist'', and for his 1974 screenplay for the film adaptation of the same name. Blatty won ...
, contains a subplot where Dr. Vincent Amfortas, a terminally ill neurologist, leaves a "to-be-opened-upon-my-death" letter for Father Dyer detailing his accounts of contact with the dead, including the doctor's recently deceased wife, Ann, through EVP recordings. Amfortas' character and the EVP subplot do not appear in the film version of the novel, ''
The Exorcist III ''The Exorcist III'' is a 1990 American psychological horror film written and directed by William Peter Blatty. It is the third installment in the ''Exorcist'' series, an adaptation of Blatty's ''Exorcist'' novel '' Legion'' (1983), and the f ...
'', although in Kinderman's dream dead people are seen trying to communicate with the living by radio. In ''
Pattern Recognition Pattern recognition is the automated recognition of patterns and regularities in data. It has applications in statistical data analysis, signal processing, image analysis, information retrieval, bioinformatics, data compression, computer graphics ...
'', a 2003 novel by
William Gibson William Ford Gibson (born March 17, 1948) is an American-Canadian speculative fiction writer and essayist widely credited with pioneering the science fiction subgenre known as ''cyberpunk''. Beginning his writing career in the late 1970s, hi ...
, the main character's mother tries to convince her that her father is communicating with her from recordings after his death/disappearance in the
September 11, 2001 attacks The September 11 attacks, commonly known as 9/11, were four coordinated suicide terrorist attacks carried out by al-Qaeda against the United States on Tuesday, September 11, 2001. That morning, nineteen terrorists hijacked four commer ...
.


Theatre and music

In '' Nyctivoe'', a 2001
vampire A vampire is a mythical creature that subsists by feeding on the Vitalism, vital essence (generally in the form of blood) of the living. In European folklore, vampires are undead, undead creatures that often visited loved ones and caused mi ...
-inspired play by Dimitris Lyacos, the male character as well as his deceased companion are speaking from a recording device amidst a static/white noise background. In ''
With the people from the bridge ''With the People from the Bridge'' (Greek: ''Με τους ανθρώπους από τη γέφυρα'') is the second part of the ''Poena Damni'' trilogy by Greek author Dimitris Lyacos. The book deals with the theme of loss and the return of ...
'', a 2014 play by Dimitris Lyacos based on the idea of the return of the dead, the voice of the female character NCTV is transmitted from a television monitor amidst a static/white noise background. EVP is the subject of Vyktoria Pratt Keating's song "Disembodied Voices on Tape" from her 2003 album ''Things that Fall from the Sky'', produced by
Andrew Giddings Andrew Giddings (born 10 July 1963) is an English musician. He primarily plays keyboard instruments and is best known as a former member of British rock group Jethro Tull, for whom he was the longest serving keyboardist. Early life Giddings ...
of Jethro Tull.
Laurie Anderson Laurel Philips Anderson (born June 5, 1947), known as Laurie Anderson, is an American avant-garde artist, composer, musician, and film director whose work spans performance art, pop music, and multimedia projects. Initially trained in violin and ...
's "Example #22", from her 1981 album '' Big Science,'' interposes spoken sentences and phrases in German with sung passages in English representing EVP. During the outro to "Rubber Ring" by
The Smiths The Smiths were an English rock band formed in Manchester in 1982. They comprised the singer Morrissey, the guitarist Johnny Marr, the bassist Andy Rourke and the drummer Mike Joyce. They are regarded as one of the most important acts to eme ...
, a sample from an EVP recording is repeated. The phrase "You are sleeping, you do not want to believe," is a 'translation' of the 'spirit voices' from a 1970s flexitape. The original recording is from the 1971 record which accompanied Raudive's book 'Breakthrough', and which was re-issued as a flexi-disc in the 1980s free with The Unexplained magazine.
Bass Communion ''Bass Communion'' is a solo project of English musician Steven Wilson, best known for his lead role in the rock band Porcupine Tree. Records released under the name "Bass Communion" are in an ambient or electronic vein - lengthy drone-heavy ...
's 2004 album ''
Ghosts on Magnetic Tape ''Ghosts on Magnetic Tape'' is the name of the fourth studio album released by British musician, songwriter, and producer Steven Wilson under the pseudonym Bass Communion. It was created primarily from processing 78rpm records and piano sources ...
'' was inspired by EVP. The band Giles Corey, founded by Dan Barrett composed a song called "Empty Churches" which features track 2 called 'Raymond Cass', track 36 called 'Justified Theft' and track 38 called 'Tramping' from the album ''An Introduction to EVP'' by The Ghost Orchid which features excerpts from different EVP experiments produced by many researchers, although most are unknown, some have been pointed out to be more known researchers who studied EVP recordings including Friedrich Jurgenson, Raymond Cass and Konstantin Raudive. The 2017 album ''Katharsis (A Small Victory)'' of Polish theatre group
Teatr Tworzenia Teatr Tworzenia, or The Theater of Creation, Polish avant-garde theater, founded by Jarosław Pijarowski. According to the author's definition it is: "Uninstitutionalized form of realization of creative ideas, consisting on intuitive-improvisa ...
by
Jarosław Pijarowski Jaroslaw Pijarowski (born 18 December 1971) is a Polish avant-garde artist, art curator and founder of Teatr Tworzenia (Theater of Creation). He creates contemporary music, poetry, photography, fine arts and theatre-music spectacles. Career He b ...
contains EVP recordings in the background of its second track "Katharsis – Pandemonium".


See also

*
Parapsychology Parapsychology is the study of alleged psychic phenomena ( extrasensory perception, telepathy, precognition, clairvoyance, psychokinesis (also called telekinesis), and psychometry) and other paranormal claims, for example, those related t ...
*
Mediumship Mediumship is the practice of purportedly mediating communication between familiar spirits or spirits of the dead and living human beings. Practitioners are known as "mediums" or "spirit mediums". There are different types of mediumship or spir ...
* Backward message *
Ghost hunting Ghost hunting is the process of investigating locations that are reported to be haunted by ghosts. Typically, a ghost-hunting team will attempt to collect evidence supporting the existence of paranormal activity. Ghost hunters use a variety o ...
* Reverse speech *
Auditory hallucination An auditory hallucination, or paracusia, is a form of hallucination that involves perceiving sounds without auditory stimulus. While experiencing an auditory hallucination, the affected person would hear a sound or sounds which did not come from ...
* List of topics characterized as pseudoscience *
Pattern recognition Pattern recognition is the automated recognition of patterns and regularities in data. It has applications in statistical data analysis, signal processing, image analysis, information retrieval, bioinformatics, data compression, computer graphics ...


References

{{DEFAULTSORT:Electronic Voice Phenomenon Ghosts Paranormal terminology Parapsychology Pseudoscience Recording Spiritualism Telephony