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RE: News rom the workshop, Inlayed soundport
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cathulu
Posts: 950
Joined: Dec. 15 2006
From: Vancouver, Canukistan
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RE: News rom the workshop, Inlayed s... (in reply to Anders Eliasson)
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Hi Anders. I am simply using the principles of conservation of energy. They have done me well over the years. That is not to say that adding an additional hole on the side of the guitar may change the resonant frequency of the guitar and therefore some of the tones out the front of the guitar may be louder, while others less so. So the guitar might sound a bit brighter or less so on some of the notes. But the sum total RMS energy will be less. This guy did some tests, but his testing is junk imho. He did not control enough variables, used a sponge to block the soundhole port (absorptive of sound), did not present his data with error measurements, no statistical treatment of data, did not look at the frequency distribution and loudness of same, and probably a hundred other things I haven't bothered to think about. http://www.mcknightguitars.com/soundports.html I would love to see some real science on this issue. Right now it is in the still in air in my opinion. The guitar barely puts out any volume, a human voice is louder. So there is not a lot of energy to start with. I doubt the port really improves or reduces projection to any great extent because the hole is a small area compared to the soundhole on the front of the guitar. Most of the guitar's volume is from the sound board vibrating like a speaker cone anyways. If the tocaor can enjoy his guitar and hear it better then that is the main thing. An amp is a good idea if you are playing to people anyways. I am not too hung up about things. I just don't like anectotal experience presented as the truth. That has been found to be wrong far to many times. Too many variables there - I know guys who made improvements to their motorcycles and from the seat of the pants they thought they were faster, the actual dyno result was they were slower on all counts, HP and torque. No worries though! It is all speculation as you say, but the onus doesn't lie with me to prove whether it works or not imho.
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Date Jan. 17 2010 16:11:38
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