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In the Forum: Horn-Loaded Speakers
In the Thread: Bye-Bye, Fane
Post Subject: Of topic: who introduced tractrix curve.Posted by Romy the Cat on: 4/13/2011
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Rakesh, I do not know a lot about the audio trivia. What I do know that in the world I live and I understand the tractrix curve introduced Bruce Edgar. 

I thought that tractrix curve was described by French. The tractrix curve is twisted and not straight, so French would be perfect candidates. Still, the math description has very little relevancy. Voigt horns for sure had huge impact to what we now recognized as tractrix horns but his horns did not have momentum. The true momentum in my view, at least in the world that I was able to exposed, was launched by Dr. Edgar. Bruce was the one who introduced the entire idea of “new horns” vs. “old horns” and by doing it he contradicted with his MF tractrix the whole experience of Altec, JBL, EV and the rests.

I do think that the tractrix curve was propelled to today’s use by Bruce. Who “invented” it 300 years ago is less relevant as it has no relation to sound. I heard that tractrix curve was found at the underwater part of some Greek ships 7th centuries BC, too much for the “invention”. It is not too clear who first apply it to sound, probably Voigt but in our denegation there was no Voigt and the torch was cared by Bruce Edgar.

BTW, do not feel that tractrix curve is some kind of universally best profile. Nowadays La-horns take a lot of marker share and he are good for HF…

The Cat

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