Sender: mike burrell <mikpos AT pillo DOT dyndns DOT org>
From: mike burrell <mikpos AT home DOT com>
Subject: Re: Low-freq. Fourrier spectrum analisis
Newsgroups: comp.lang.c,comp.os.msdos.djgpp
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Date: Sat, 05 Feb 2000 19:26:53 GMT
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In comp.lang.c Mike Collins <Mike AT no_spam DOT e-col DOT freeserve DOT co DOT uk> wrote:
> Can anybody point me at a source of C-code for Fourrier analysis, please?

> I want to find the amplitudes of the 8-12Hz, 12-16Hz, 16-20Hz, 20-24Hz bands
> of a complex signal with a total bandwidth of not more than 30Hz.

> Source code would be really great, but any pointers to a simple explanation
> of how it works mathematically would also be most appreciated.

ask on comp.sources.wanted, or somewhere in the sci. hierarchy.  in
comp.lang.c we deal with the language itself, not mathematical algorithms.

also, it took me under 10 seconds to find source code for fast fourier
transforms:
http://www.intersrv.com/~dcross/fft.html

know your search engines well :)

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