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Re: How to calculate the bandwidth of a quadratic residue diffusor?

Posted by DIAR (A) on June 9, 2004 at 13:16:25

In Reply to: How to calculate the bandwidth of a quadratic residue diffusor? posted by Sampsa on June 9, 2004 at 12:46:47:

The widht of wells defines the high frequency diffusion and the depht of the wells define the low frequency diffusion.
Read more here:
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=/netahtml/search-bool.html&r=9&f=G&l=50&co1=AND&d=ptxt&s1=291,601&OS=291,601&RS=291,601

You might get some kind of info about the frequency range from RPG's homepage:
http://www.rpginc.com/products/qrd734/index.htm

Since you know finnish, you might be interested in my diffusor design tool (lower right corner):
http://kotiweb.kotiportti.fi/audiovideo/akustiikka/akustiikka.html

here's how I like to build these things:
http://kotiweb.kotiportti.fi/audiovideo/akustiikka/QRD/QRD.html

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