Powerful EVP speaking to the dead with mobile devices.
Many paranormal enthusiasts are using powerful EVP techniques that rely on the ability to create static sound waves in the hopes that something or someone from the spirit world will be able to use this energy to communicate back to the listener on an audio band that is usually not possible for human ears to hear alone. Some of the original instances of people attempting to use the Electronic Voice Phenomenon involved ghost hunters using a voice recorder, either digital or one with an analog tape recording, placed near a sound source such as a fan in operation or the …