Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!husc6!cmcl2!brl-adm!adm!ADLER1%BRANDEIS.BITNET@wiscvm.wisc.EDU From: ADLER1%BRANDEIS.BITNET@wiscvm.wisc.EDU Newsgroups: comp.lang.c Subject: Fast Fourier Transform Message-ID: <8420@brl-adm.ARPA> Date: Thu, 23-Jul-87 00:18:56 EDT Article-I.D.: brl-adm.8420 Posted: Thu Jul 23 00:18:56 1987 Date-Received: Sat, 25-Jul-87 03:18:58 EDT Sender: news@brl-adm.ARPA Lines: 14 I have noticed recent messages requesting software which performs fast fourier transforms. A friend of mine has been working on this. If you are interested in purchasing what he has, you can contact him directly from the information below. He is not a subscriber to INFO-C but when I told him about the interest in FFT code he drafted the following reply and asked me to post it on the net. ------------------------------------------------------------------------------- With regard to your request for FFT code in C, I may have what you need. I have written routines based on the Cooley-Tukey algorithm to perform forward and inverse transforms of real and complex arrays, Hamming windowing, conversion between sine-cosine and phase-amplitude representations, and power spectrum calculation. You may contact me on BitNet at ERICHSEN@SBBIOVM.BITNET ; address correspondence to the attention of Tom Schotland. -------------------------------------------------------------------------------