PLEASE NOTE that I predate Keele on this barrier idea by quite a few
years.
I was being modest and not mentioning myself because the idea of a
physical barrier is so trivial
that it ought to be beneath anyone's dignity to accept "credit" for it.
But if credit were to be assigned(and in the crazy world of audio anything
can happen) , then I point out that I wrote in detail about
physical barrier to enhance stereo in the pages of The Absolute Sound
many years before Keele's article.
I suppose Keele's did not know about this or he would have mentioned
it. But that does not mean it did not happen. It did happen.
This was in a published letter to TAS before I had become a writer for
them. I described in considerable detail the effects of it and
recommmended to people to try it.
Not exactly Nobel Prize time. But priority is priority. Wrong
attributions in audio seem never to die. I was definitely first with
the most men, as NBF said, on this subject. Or at least I was ahead
of Keele! (It is hard to believe that say Blumlein did not try this--
the idea is so simple.) It does not amount to much, but it is mine
or at least it is mine before Keele and before Glasgal
Robert
PS Audio can be really embarrassing. When the Quad 63 appeared, reviewers
rushed to express appreciation and no wonder. That was fine. What was not
fine is that many of them described the "genius" of Peter Walker
in thinking up the idea that a virtual point source could be constructed
via rings and time delays. Huygens must have turned in his grave.
When I wrote up the speaker, I could not resist spending a good bit of
time and space on how the basic idea dated back to 1690(actually earlier
but publication was a bit delayed).
Forget about worrying about Creationism and so on. One could worry
that people writing on technical material are in many instances
ignorant of the most basic aspects of scientific history.
Walker was an excellent designer and it was no easy task to bring the Quad
63 to commercial reality. But the idea that he discovered virtual source
synthesis makes about as much sense as saying that Lindberg discovered
France.
On Fri, 25 Feb 2011, Eero Aro wrote:
Robert Greene wrote:
I think this idea was invented by Christian Huygens and
Young and Fresnel. Once one knows that sound is a wave phenomenon,
there is nothing left to invent--except the details of how the sound
goes around the head. Practical implementation especially in the analogue
world is another story!
I throw in one more name from a later date, 1989.
Don Keele wrote in his AES paper about a physical baffle
between the two loudspeakers. The baffle almost reached
the nose of the listener.
Eero Aro
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