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EFP - EVP


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#1 project-reveal

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Posted 11 October 2010 - 07:08 PM

WHat do you think to this i found?

EFP - EVP Field Processor

The E.F.P. has been tested and is commonly used by the American Paranormal Research Association, proving to be a valuable tool when conducting E.V.P. investigations.

The E.F.P.'s "real time, high visibility" green with red center LED display, allows others to view E.V.P. responses easily in dark locations. This feature allows users the ability to capture E.V.P. evidence on video.

The device has a "white noise/ambient noise baseline adjustment" allowing the user, to set the baseline level on the devices illuminated scale. This provides a "visual reference" to see in real time any "addition" or "reduction" of proprietary frequency noise.

The E.F.P.'s built in circuitry filters and amplifies input signals to high levels allowing users to visually monitor E.V.P. responses at higher resolution. The input to the device has (1) 3.5mm stereo plug used to connect to any recording devices live audio output (earphone).

The E.F.P. also has (1) 3.5mm audio output which can be used for earphone or mp3 type speakers. The E.F.P. has a "manual on/off switch" and built in "push button single LED navigational light". The E.F.P. operates on one standard "9volt" battery. The current regulation circuitry in the device provides hours of use.

Bright illuminated scale for dark locations
Displays E.V.P. above and below baseline
Visually displays hard to hear E.V.P in real time
Prevents false positives with highly sensitive display
Great learning tool for the beginner and the professional
Calibrated baseline adjustment dial
Earphone or mp3 speaker jack
Standard 9volt battery compartment
Small enclosure approx. (2.75 x 5.0 x 1.0).

*The E.F.P. is intended to be used by professional investigators and "does not" include recording
device. It is designed to be used in conjunction with any recording device that has "live audio
monitoring" with 3.5mm output. Most recorders work fine but check your recorder to make sure
it has live audio monitoring or the E.F.P. will not work properly


This costs 145$ for this link.

http://www.creepyhol...?...1&Itemid=71
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#2 ourobouros2k2

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Posted 11 October 2010 - 07:43 PM

WHat do you think to this i found?

EFP - EVP Field Processor

The E.F.P. has been tested and is commonly used by the American Paranormal Research Association, proving to be a valuable tool when conducting E.V.P. investigations.

The E.F.P.'s "real time, high visibility" green with red center LED display, allows others to view E.V.P. responses easily in dark locations. This feature allows users the ability to capture E.V.P. evidence on video.

The device has a "white noise/ambient noise baseline adjustment" allowing the user, to set the baseline level on the devices illuminated scale. This provides a "visual reference" to see in real time any "addition" or "reduction" of proprietary frequency noise.

The E.F.P.'s built in circuitry filters and amplifies input signals to high levels allowing users to visually monitor E.V.P. responses at higher resolution. The input to the device has (1) 3.5mm stereo plug used to connect to any recording devices live audio output (earphone).

The E.F.P. also has (1) 3.5mm audio output which can be used for earphone or mp3 type speakers. The E.F.P. has a "manual on/off switch" and built in "push button single LED navigational light". The E.F.P. operates on one standard "9volt" battery. The current regulation circuitry in the device provides hours of use.

Bright illuminated scale for dark locations
Displays E.V.P. above and below baseline
Visually displays hard to hear E.V.P in real time
Prevents false positives with highly sensitive display
Great learning tool for the beginner and the professional
Calibrated baseline adjustment dial
Earphone or mp3 speaker jack
Standard 9volt battery compartment
Small enclosure approx. (2.75 x 5.0 x 1.0).

*The E.F.P. is intended to be used by professional investigators and "does not" include recording
device. It is designed to be used in conjunction with any recording device that has "live audio
monitoring" with 3.5mm output. Most recorders work fine but check your recorder to make sure
it has live audio monitoring or the E.F.P. will not work properly


This costs 145$ for this link.

http://www.creepyhol...?...1&Itemid=71


I'm going to piss some people off, but at the risk of doing so, I cannot overstate the fact that I think this is a huge ripoff. Looks like an LM3915 LED driver with variable input and an LED block. It might be filtered but no one I have ever talked to can give me a straight answer on that. Working on the premise that it isn't filtered, you can replicate the function of this device for about 12-15 dollars us. If there is some more technical operation at work with the device, I wish they would be more specific, otherwise just looks like a simple VU circuit to me. Youtube LM3915 or LM3914 and you will see many breadboarded examples of this.

I also take issue with the fact that the feature lists says that it shows you evp's above and below the baseline. It shows you voltages (likely from real sound) from the input. Saying they are definitively evp's is a marketing stretch. This device does have some usefulness if the output is filtered to a specific freq. range, but I can not find anything specifically addressing this. All it says is that it "filters and amplifies". It looks cool though.

If you get one, please let us know if the accompanying documentation sheds any further light.

thanks
Andy
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#3 CaveRat2

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Posted 11 October 2010 - 07:56 PM

I think it is a quick way to part the buyer from $145.

To begin with, what is the advantage of having an EVP light an indicator? It would seem to me that your money would be better spent on a device that would actually capture the EVP for analysis. The only advantage is that you would not have to review audio if you choose to beleive the indicator. However I would much prefer to actually confirm that nothing was recorded than to trust an electronic device. There is too much room for error where a potentially good EVP might be missed simply because the device failed to activate.

But it gets worse. Next we have a device introducing white noise. This is a common ploy to introduce a background that leads to audio paraidolia. To the contrary, the most reliable recording methods try to minimize, not increase background noise.

The idea of filters is about the only positive aspect to this thing. Without actually testing one I can't say what the signal to noise ratio is, but if a good low noise preamp is used it would increase the sensitivity of a recorder. It is not stated what the passband of the filter is, but if it is designed for voice band emphasis then this is a plus. However there are other ways to acheive this for much less than $145. A basic stereo preamp with voice band emphasis could be obtained for under $50.

The other info really is dependent on what the user uses this EFP with. The ability to monitor recording in realtime is a definite plus, however from what I read here this appears to require your recorder already have that capability. So you really aren't gaining anything you already didn't have.

I must admit that I have written this evaluation based solely on the post made here. To the promoters of this product I will make my standard offer. If you feel I have not given an honest evaluation, you may submit a device for testing through BEC Labs. We will then use it in the manner you specify and provide an unbiased followup evaluation here and on my website based on actual laboratory analysis using your methods as well as scientific testing protocols.

#4 project-reveal

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Posted 12 October 2010 - 12:41 PM

hey.

thanks for your views yes it is alittle pricey the only thing worth while about this compared to other sound recorders.. is the white noise Gen, and amp ... as with your recorder "set on real time monitoring" you wouldnt hear the White noise / Ghosts communication as well? lol if they was to exist

here is a video i want you to take a look at.

http://www.youtube.c...feature=related

Watch the above...
Some things i noticed they are showing you the evidence "not in real time" i wounder why? all the stuff they showed is "Pre real time" like how you would view a normal evp...

i am not convinced that the evp is Gen.. because all point of this device is to capture it in Real time right?

I think thats a purposly made video to "SELL" lol.

and another thing i noticed is the baseline wasnt set right... and when no one was talking on the box... the lights were near top... surly thats not right..

take a look and see if you can spot it :) just after the intro.

thanks
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#5 CaveRat2

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Posted 12 October 2010 - 02:41 PM

I was unimpressed by the video. As stated it appears to be little more than a commercial to sell these things. Even the recorder they usedf is a small monaural voice recorder. These do not have sufficient bandwidth to do quality audio work as evidenced by the low quality of their supposed EVPs.

Analysis of a recording is not something easily done in the field anyway. To do quality study you must use various techniques, at the very least a set of headphones in a controlled environment away from external influence. Those conditions seldom exist in the field, thus a good reason not to waste time doing a field analysis. Take your recording home and study it where you can give it proper consideration.

#6 project-reveal

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Posted 18 October 2010 - 10:22 AM

ok i have one of these comming i will do a test with it, and make a video with the good and bad bits about it and hopefully explain more about it!

as the video's out there dont tell you as much as what it should.
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