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Howdy Old GUy,
Hmmm......is it old guy or old gui---> as in graphic user interface???
Anyways, yes....you are correct in that: today, there's nothing that meets the universally accepted qualifications of proof. Obviously If there was; things would be a whole lot different.
I myself have gone through a couple of different equipment building spurts. I constructed a detector using ultrasonic transducers. I could hear mice roaming around and the occasional bat looking for it’s belfry but alas…..nothing out of the ordinary.
I have most recently approached EVP’s from the standpoint that not all….but; a lot of EVP’s are actually direct voice and micro-acoustic. Instead of electrets, my array uses 1 inch gold sputtered condensers.
Do you have any recordings? If so I’d like very much to listen to them.
Also, a while back I ran across a site that dealt with infra-sonic microphones. If you were so inclined:
http://volcanomodels.sr.unh.edu/jbj/MICROPHONES/microphone_list.html
Take Care,
Ron
Old Guy as in crochety old man. Before I forget, LORD we miss AZ!!! My Mrs. is third gen Tucsonan. I've lived in the southwest my entire life. Miss it, miss it, MISS IT!
Mice? Bats? Wrong end of the spectrum. Reverse the polarity.
IMO - There are two problems with EVPs. One relates to the other. Lack of documentation and RFI. To provide that pesky incontrovertible proof thing, you have to demonstrate that it's *not* a broadcast radio signal. Now it starts to look like a SETI project. Virtually all recorders are susceptible to RFI, unless specifically shielded to prevent it. I know of no such recorder that one can purchase. If I had a dollar for every breadboard circuit I biult on the bench that picked up radio - I'd have a dollar for every breadboard circuit I built on the bench.
I have recordings - of trucks, thunder, cars driven by future hearing-impaired kids, ... I *thought* I had recorded the quake in Haiti, but decided the timing was too far off. Then there was Chile at 8.8 - nothing. Oaxaca - 6.2 and still nothing. I need an adjustable subsonic source. Like a whale, elephant, giraffe, or ... a US Navy submarine!
I printed that PDF when I first ran across it. That was before Panasonic mixed up their product line. It's still a good refernce so I still have it on the wall. Jeff Johnson is a pioneer in subsonics. Good reading here: http://www.ees.nmt.edu/johnson_j/index.html
If you're there or ever get there, give my regards to "The Old Pueblo." We'll be back. Someday...