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In the Forum: Horn-Loaded Speakers
In the Thread: Macondo's Axioms: Horn-loaded acoustic systems
Post Subject: Photographic Chromatic Aberrations and horns/soundPosted by Romy the Cat on: 4/4/2008
Be,
I do not think that effect you describe has anything to do with demand of horns have strictly parallel axis. I also came across to some situations where the extremely indirect sound was superbly interesting but it is I feel is very different subject and has very different underlying reasons.
My presumption is that with non-parallel case the different frequencies get time-aligned at different distances, something to what we in photography (my first trade) was called chromatic aberration. If you look at the nature of chromatic aberration in optical system then you will see a perfect model why the unparallel horns do not sound right. If you have a lens and hold it’s axis on the line of infinitely located light source then you have one level of chromatic aberrations. If you then angle the lend 5 degree for instance then you will have the very same focusing but the amount of chromatic aberrations will avalanche.
I do not insist that it is right explanation but it does it to me. After all - they are my Axioms… :-)
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