Most of the cavities that archaeoacoustics study are spiritual in nature, and the theory is that the exposure to the resonant frequency of the chamber has a physical effect on human brain activity, even to the point of triggering a different state of consciousness without the use of chemical substances.
One of these chambers currently under study is a 5,000 year old Hypogeum, an underground mortuary temple on the Mediterranean island of Malta with a space known as "The Oracle Room" that yields strong double resonant frequencies at 70Hz and 114 Hz. A deep male voice tuned to these frequencies can stimulate the resonances and create a bone-chilling 8 second reverberation that reportedly provides the illusion of sound reflecting from the body to the ancient wall paintings, but leaves the listener with a great sensation of relaxation.
What's especially interesting is that the acoustics of this chamber didn't come naturally. Man-made carving on the ceiling revealed what amounted to a wave guide, suggesting that the designers of the room knew much more about acoustics and their effects on the human body than we know or care about today.
W e often think that because we have such sophisticated gear that it automatically makes us superior to those that have gone before us. In reality it seem that there's been a vast treasure trove of knowledge that's been lost through the ages that we're lucky to discover enough bits and pieces of every so often.
There's a really great website at archaeoacoustics.org that has a lot of information and audio samples regarding this discipline and its work. Not only that, it's a lot more modern and accessible than most sites about scientific research. Check out the video below as well.
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1 comment:
Great article and very educational, thanks Bobby;-)
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