"Also known as extremely low voice phenomena, EVP is something science has recognized as existing, but unable to explain where or who the speaking is coming from. The first person to discover this was thomas edison.
This is what we Know...
The human voice range is from 300 Htz to 3000 Htz
Most spirits have been recorded well below 300 Htz, ruling out someone else in the background making noise or whispering off camera. 3000 and 300 are the extreme ends. No one human alive has yet to hit either end yet, we get EVP's every day that fall anywhere from the 0 to 300 Htz range. (source: http://www.youtube.com/watch?v=n5BHGjlS-H0&mode=related&search= )

He faund alot of this videos( http://www.youtube.com/watch?v=JgajkhrXL5I&mode=related&search= )youtube...

Is this true or not..?

No.

From Wiki:

"In terms of frequency, human voices are roughly in the range of 80 Hz to 1100 Hz (that is, E2 to C6) for normal male and female voices together. The world records for high and low pitch extend well outside of this range, and can extend outside the range of human hearing."

Looks like your "facts" are off.

quote:

EVP is something science has recognized as existing

It most certainly has not.

EVPs aren't quite science nor are they definitely a myth, they seem to be in the gray zone in between, where we don't know if they're real or hoaxes or RF interference from HAM radios or what.

It would be cool if the MBs looked into them.

I'd propose building a high-voltage microphone specifically to make it easier for ghosts to be heard, if they're out there. It'd just be a high voltage across a pair of wire screens separated so that the air between the grids is close to the air's dielectric breakdown voltage. The microphone signal would be taken from a high-voltage capacitor in-line to block the DC voltage but let the "voices" come through for recording.

I'd be happy to provide further circuit designs to get this thing working if the MBs were actually interested in making one for the show.

EVP's are not nessicarily voices but the mechanical noise from the thing used to record. or they can be echos from in the room.

Other than the alcoholic variety, there are no such things as spirits. So this myth is busted.

Much the same as people look at a cloud and see a bunny or a cheeseburger or a 9 headed Black dragon poised to eat a wood chuck people will try to find patterns where there are none, I bet you could get a white and pink noise generators play them out of a stereo hi-fi and 1 out of ten people would here messages from there dead grand father.

I have recorded EVP in my bedroom- they're not radio transmissions (frequency range again- massive peaks at 0dB as in the sound is lower than is measurable), human voice or basically anything else HOWEVER, the microphone I was using (behringer B1 as I couldn't afford anything better) cannot pick up frequencies that low, so they must have been happening via electroic or direct means- they were not made in the room or picked up by the microphone. My best geuss is that they are caused by compression artifacts.

I still have the sound files if anyone fancies taking a listen.

There are so many sources for sound to get onto recording, I don't even know which one to start with.

First of all, there are mechanical noises. A lot of EVP enthusiasts claim that they pick up more EVPs when they use old-style mechanical tape recorders. Indeed, these generate so much extra noise that with a strong enough amplification it is hard not to hear something.

Then there is RF. Every amp is also a broad range AM receiver. It can pick up anything from electric outlet buzz to AM radio transmissions. The later could easily contain actual voices, even though most EVPs are just amplified noise.

Finally, there is thermal noise. If you drive an amp far enough, electric pulses made by thermal excitations create a white noise background, and these often sound like voices.

There is an easy way to tell that EVP has been produced by an artifact. Listen to real voices that got on recording. Are they distorted? If so, the amp is overdriven, and you aren't going to get anything useful out of that signal. Next, look for white noise. Noise present? Anything you hear is an artifact of that noise. Usually, you have two of these combined which can produce some really interesting stuff.

Now, if you can find some EVP that is done digitally with an amp that works within its operating range providing a clean recording without noise and distortion, then we have something to talk about. At the moment, number of such recordings is precisely zero.

[quote]Now, if you can find some EVP that is done digitally with an amp that works within its operating range providing a clean recording without noise and distortion, then we have something to talk about. At the moment, number of such recordings is precisely zero.[/quote]

Exactly. Which is why such apparatus would be rejected by EVP enthusiasts. The leading EVP sensor is a wide range RF receiver that will pick up anything, radio stations and all.

Completely without basis in science, but an awesome concept.

I have always thought it to just be some form of noise. You notice how they always have a caption to show you what the 'voice' is saying? Well, naturally, you are going to hear what the caption says the noise is. It's called visual capture. Even if your ears don't give you a definite fix on what the noise is, your eyes see what it is supposed to be and override the ears. Basically, you hear what you see, if that makes any sense. If they didn't have the caption, would it still sound like voices or just noise? That would depend on who is listening and what they expect to hear.

Our brain naturally looks for patterns in everything. It is why we see people in toast and on trees, why we see animals in clouds. The same goes for sound. Our brain tries to find a pattern and the most common pattern we use it speech. The funny part about EVP is that if you play the same recording to people that speak different languages they will each hear their own language. And in case you wondered, it is not the same things being said. It is the same reason people hear words when music is played backwards.

theTroll

We all know the movie white noise where a man becomes involved with a man that communicates with the dead. And many of us have heard of Thomas Edison that created a machine capable of communicating with the dead. This last being untrue (it was a joke on a reporter by edison) the electronic voice phenomenon has many fans whome actively search for a message from the other side using a radio and a taperecorder. On http://en.wikipedia.org/wiki/Electronic_voice_phenomenon you can find more on this subject.

Wouldnt it be fun if the Mythbusters would try to find the truth behind all this?
There is plenty to learn from it, radiowaves,taperecording, analyzing sound, history and, the toughest of all, the difficulty of interpretation.

> Wouldnt it be fun if the Mythbusters would try to find the truth
> behind all this?

The truth is already known. There are just some people out there who would rather make-believe.

wikipedia is subject to editing by anyone. Items on wikipedia aren't necessarily true or accurate. People used to think the world was flat, that didn't make it true.

I think EVP's should be explored because there is so much data out there about it, yet unlike ufos, it should be able to be replicated scientifically, or proven something else. Maybe for a halloween special?