Electronic voice phenomena (EVP) are sounds found on electronic recordings which resemble speech, but are not the result of intentional recording or rendering. EVP are commonly found in recordings with static, stray radio transmissions, and background noise. Recordings of EVP are often produced by increasing the gain (i.e. sensitivity) of the recording equipment.

Interest in EVP surrounds claims that they are of paranormal origin, although a number of natural explanations have been offered including apophenia (finding significance in insignificant phenomena), auditory pareidolia (interpreting random sounds as voices in one’s own language), equipment artifacts, and hoaxes.

Parapsychologist Konstantīns Raudive, who popularized the idea, described EVP as typically brief, usually the length of a word or short phrase.

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