E : 330 Hz
A : 440 Hz or the frequency of E * 4/3
B : 495 Hz or the frequency of E * 3/2
Posted on 03/11/2008 10:21:49 AM PDT by blam
Ancient Architectural Acoustic Resonance Patterns and Regional Brain Activity
Authors: Cook, Ian A.; Pajot, Sarah K.; Leuchter, Andrew F.
Source: Time and Mind, Volume 1, Number 1, March 2008 , pp. 95-104(10)
Publisher: Berg Publishers
Abstract:
Previous archaeoacoustic investigations of prehistoric, megalithic structures have identified acoustic resonances at frequencies of 95-120 Hz, particularly near 110-12 Hz, all representing pitches in the human vocal range.
These chambers may have served as centers for social or spiritual events, and the resonances of the chamber cavities might have been intended to support human ritual chanting.
We evaluated the possibility that tones at these frequencies might specifically affect regional brain activity. In a pilot project, 30 healthy adults listened to tones at 90, 100, 110, 120, and 130 Hz while brain activity was monitored with electroencephalography (EEG).
Activity in the left temporal region was found to be significantly lower at 110 Hz than at other frequencies.
Additionally, the pattern of asymmetric activity over the prefrontal cortex shifted from one of higher activity on the left at most frequencies to rightsided dominance at 110 Hz.
These findings are compatible with relative deactivation of language centers and a shift in prefrontal activity that may be related to emotional processing.
These intriguing pilot findings suggest that the acoustic properties of ancient structures may influence human brain function, and suggest that a wider study of these interactions should be undertaken.
GGG Ping.
Bump for later.
If they meant 1000 HZ, this might be more believable.
At most this would tend to say the ancient megalithic sturctures were either built by our human ancestors or for them.
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If such frequency related shifts in information processing occur, and the frequencies and harmonics identified, what is to stop people from taking advantage of those frequencies for the purpose of manipulation of a mob (population), whether it be in an ancient forum (Caeser), a megalithic structure (Hitler), or digitally on your television???
Maybe the tinfoil-hat bits about the masons aren't so far off after all, when the architecture controls the acoustics, which might control the ability of the crowd to process data, but now that could be done by any good sound engineer with the appropriate electronics...
Speculation, fun, but a frightening premise as well...
When I toured Ireland, I saw several 11th century churches with “whispering arches.” Apparently these were used as confessionals during time of contagious diseases. The arches were 7-8 feet across, but if one person stood on one side facing the stone and whispered, the other on the opposite side could hear the words clearly.
Harmonics...
” the resonances of the chamber cavities might have been intended to support human ritual chanting.”
Might, hmmm! Then again, might not!
Money spent on foolish research could be well-spent in other places.
Similar acoustic resonance specs indicate similar room sizes. So, meeting rooms tended to the same size...and this relates to chanting? Did these folks get their degrees from Harvard lib arts faculties? Duhhhhhhhh!
Not good, and not fairplay, so the targeted people just have to be tough and more discerning than the manipulations, personally guess.
While on the topic of paranoia, when the television shows a rapid sequence of images or background patterns, sometimes look the other way in case there's some subliminal message or hypnosis attempt. Improbable, and acting in such a manner is quite paranoid/tinfoily, but there's little downside to averting gaze for a few seconds, and in the off chance there is a subliminal message, then the aversion was the proper move.
On the topic of political intrigue, the Capitol rotunda has something similar due to the elliptical shape of the room. If you stand at one point and talk, some guy at the other locus can hear, although people closer to the talker might not.
I recall being subjected to such image barrages in Junior High School, and there were probably subliminals in those. I did not watch the whole thing, as they gave me a headache.
I have seen that when the camera gets all 'jiggety' with different angles and zooming in and out, it seems as if there is often little to see, and the camera tricks are there to keep your attention (or try to) when there really isn't much there.
I don't watch shows that pull that cheap trick, but I don't watch much TV anyway. I have grandchildren if I want to watch something that won't hold still...(8^D)
Not just size, but shape. Acoustics can be manipulated through geometry, and size is only one factor.
Have you ever heard recordings of Tibetan Buddhist monks chanting? Some of them chant at frequencies lower than any note one can hit on a piano.
By the way, does anyone here know of an online acoustic generator that I can access, to hear a tone of 110 hz? I’d like to see what it does.
I haven’t heard any chanting. There is an annoying background sound at home just about all the time, but I’m sure it’s at a higher frequency than 100 - 110 Hz.
Yes, a sound -- or a rubber ball for that matter -- passing through one foci of an ellipse will rebound off of the wall and pass through the other foci.
Interesting.
I beat you to it! I found NCH and downloaded their tone generator. So, I set it it at 110hz, and here is what I found:
110 hz is not a “very, very deep base” tone. I’d call it a baritone tone; I can easily hum it. I also was struck by how familiar the tone sounded; then, I realized where I’d heard it. It’s the first note George Harrison hits on his guitar in the beatles tune “I Feel Fine” (just to make sure, I played my .mp3 file of the song...yep, it’s the frequency of the first note of the song!)
Appreciated.
I had a friend in college, an engineering buddy with a hearing defect. He couldn't hear ANYTHING above about 700 Hz. He had trouble listening to men talk in class, but he was very smart, and still pulled about a 3.5 GPA out of 4.0 in his electrical engineering major. There were very few women that he could even hear them talk. Looking back, I don't know whether to envy him or not.
Anyhoo, most speech therapists test hearing for kids at about 1000 Hz up to 4-5000 Hz - the range of human speech. It's possible to test outside of that range - I have been tested much higher than that, just for grins. But they are testing for kids to confirm that they are able to hear the teacher in class, and converse with a normal speech person.
Obviously, 100 Hz is only 1/10 of the bottom range I just described. This is subwoofer range on a stereo/audio system. Subwoofers generally play the lowest possible frequency your amp will put out. Maybe only 12-20 Hz at the absolute low end, up to 200-300 Hz. Hence my reference of deep, deep base. Any mid-range speaker cone can't even pretend to try to play a tone of 100 Hz.
Way back in the day, I had an album that played all types of tones, as an amplifier/speaker test. I believe the lowest tone it had on it was 500 Hz, but it's been a long time, like 25 years + that I used it.
I’m curious. Got any more info for them?
Drums. Boom.
I’ve played drums, but it’s been some time. Subwoofers kicking hard to make a base drum light up with some realistic punch off a CD can REALLY make it sound just like you’re right behind the base drum.
Mysteries of the Ancient World
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Thanks Renfield and Blam. |
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Hmmmmmmmmm, 110 Hz.
That’s darn close to the frequency doubled 60 Hz hum one hears near a transformer, etc.
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