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In the Forum: Horn-Loaded Speakers
In the Thread: Jessie Dazzle Project
Post Subject: Tractrix etc.Posted by be on: 8/8/2007
It should be possible to find it hidden away in a technical universitys storage room if they have the AES papers. I could not find it on there website, probably they think it is obsolete.

The distortion in a horn is generated by two mechanisms:
1. By high pressure n the high pressure zone near the throat and here the a Tractrix and a Exponential horn with the same theoretical cut off is virtually identical.
2. By suddent changes in geometry, here the Tractrix has an advantage at the mouth but only at higher frequencies since at lower frequencies, where you are using it,   the waves lenght of the sound will be so large that it wont make any difference.
I think the fluctuating frequency response near cutoff of the Tractrix would be of a biger problem at these frequencies.
But it shure would look more artistic with only Tractrises.

You dont need 2 corners but two side walls and 1 floor or 1 ceiling, but maybe that is what you mean by corners?

Regards
Erik

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