Rorschach Audio and the Cemetery of Sound - Electronic Voice Phenomena and Sonic Archives by Joe Banks

For those who may not be aware, Electronic Voice Phenomena are a class of allegedly "mysterious" vocal recordings, and while several explanations have been proposed to explain the origin of these sounds, the majority of EVP researchers believe that their recordings constitute evidence of contact with the afterlife. In other words most EVP researchers believe that it is possible, using various radio and electrical engineering techniques, to literally record the voices of ghosts.