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In the Forum: Horn-Loaded Speakers
In the Thread: German Odeon horns.
Post Subject: Odeon Posted by be on: 4/2/2007
Actually as far as I can see from the picture and trying to estimate the location of the drivers in the horns: The 3 front horns are probably time aligned, meaning the drivers are lying on an circle with the center at the hight of the listener and the radius same as a certain listening distance.
But maybe I'am wrong, one would need a measuring band to be shure.

Vertical sound localisation happens as far as I know thru a comb filter effect of the ear. The character of the comb filter depends strongly of the the vertical angle of the sound source.
The comb filter characteristic is very complicated and is different for each individuals ears.
So it would be practicaly imposible to make an invers filter to compensate for the angeled listening axsis.

As an experiment I once tried a similar set up, regardin the listening axis.
The sound was dysfunctional in a way I have never experienced before, it gave a simmilar feeling as when one looks thru a lens that inverts the picture and you try to walk around

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