High Efficiency Speaker Asylum: horns+air non linearity equation by toxicport.e

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horns+air non linearity equation

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toxicport.e

quoted from 'loudspeaker and headphone handbook' 2nd edition edited by John borwick( i thoht it was boring when i first saw it now im loving the facts and VC and magnetic circuits )
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-for large changes in volume,pressure in horn throat is not siniusoidal
%2nd harmonic distortion=1.72F/Fc Itx10^-2
F=driving frequency
Fc=horn cut off
It=Intensity (w/m^2) at horn throat
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is this some old rule of thumb?
or still true
thanks!
Mike

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Topic - horns+air non linearity equation - toxicport.e 04:21:33 10/11/03 ( 6)

Re: horns+air non linearity equation - Traddles 15:40:41 10/11/03 ( 2)
- Riemann - Traddles 07:51:06 10/12/03 ( 0)
- goodstuff! - toxicport.e 19:17:39 10/11/03 ( 0)
Re: horns+air non linearity equation - blahblah 11:12:44 10/11/03 ( 0)
Re: horns+air non linearity equation - djk 04:32:29 10/11/03 ( 1)
- 2nd harmoncs=quack :-D - toxicport.e 06:59:51 10/11/03 ( 0)