Electronic voice phenomena (EVP) were first discovered by the Swedish artist Friedrich Jürgenson in 1959. Jürgenson was recording birdsong using a reel-to-reel tape recorder. When he replayed the tapes, he heard faint but intelligible voices in the background, even though there was no-one else in the vicinity when the recordings were made. By repeating the procedure, Jürgenson found that the voice recordings could be reliably replicated.

recordings:

• http://parc.web.fm

review:

• Dead Machines

sceptics:

• http://skepdic.com/evp.html