Today, EVP experiments are more commonly associated with ghost hunts in the field, but at the beginning of the 20th century, the early pioneers of EVP research proved that you can conduct EVP experiments just about anywhere. Much of their research was carried out as part of early séances, which would take place at the medium's home or performance space. The medium's job was to pull the spirits through and communicate with them.

For more than a century, EVP was a field of research that was conducted in homes, laboratories, offices, and workshops. It was only in the early 2000s, when television ghost hunting programs started using the technique during their investigations, that it switched to being something that is more commonly done at a haunted location.

For example, the 100,000 audio tapes of EVPs recorded by Konstantin Raudive were made without the need to visit a haunted location. Raudive used several...