Ghost Science

Within an EVP experiment has anyone ever considered how 'entities' are being picked up?

In one of my late night ceiling-staring sessions, my mind went on a tangent to trying to figure out the mechanics of EVP (Electronic Voice Phenomenon) and I did so by looking at how signals are received by a recording device, typically the microphone. For those who don't know a modern microphone contains three major components; a diaphragm, a coil and a magnet. Sound is produced via oscillation, a vibration which causes pressure waves, these pressure waves in turn cause the diaphragm of the microphone to move. Attached to the diaphragm is a small coil of wire (an inductor) which moves with the diaphragm over a stationary magnet, which induces a small charge onto the coil which is in turn amplified by the recording device and stored to the tape / memory card (I'm not going to discuss this process yet, just the microphone for now!).

Now the human ear works in a similar way, a diaphragm moves small bones in our ear which in turn allow us to hear. So whats the difference between a microphone and the ear? Well the microphone contains a coil (inductor) and inductors induce voltage electromagnetically, so any kind of electromagnetic or magnetic field could be detected, where as our ears only work with sound pressure waves.

Personally I know there are many other factors going on, which could cause EVP, which I will post about in the future. But idea behind my conclusion was 'is it sound pressure or magnetic fields at work' and I have designed a two simple experiments for testing it. The first experiment involves using three identical but separate recording devices. One equipped with just an inductor, the other with a laser-microphone (a device which uses a mirror as a diaphragm, modulated light reflected off it is received by a photo-transistor and cannot directly be effected by ) and lastly a standard microphone equipped to the last device as a control.

The second experiment is similar the the above but instead of a laser-microphone, a standard microphone is placed inside a Faraday cage (an earthed cage which prevents electromagnetic fields from penetrating it) thus removing the EMF variable.

As I said I plan to further explain and discuss other aspects of the technical side of EVP and the more in-depth variables later on, but I would like hear your input and idea's on this.