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Joerg's FXT Page
Source code and links for many different FFT implementations and related information.
http://www.jjj.de/fxt/
FFT Page
Links and various Fortran FFT implementations.
http://ourworld.compuserve.com/homepages/steve_kifowit/fft.htm
Fast Fourier Transforms
Contains Fast Fourier Transform source code (C, C++, Pascal), tutorial, and math theory.
http://www.intersrv.com/~dcross/fft.html
benchFFT
Benchmark comparing speeds of many FFT codes. Results from many machines, and code to run it yourself.
http://www.fftw.org/benchfft
FFT Links
Links to many sources of FFT code and information.
http://www.fftw.org/links.html
FFTW
Fast free C FFT library; includes multi-dimensional, real-complex, and parallel transforms.
http://www.fftw.org/
A Short Demonstration Version of the FFT Source Code in Fortran
Source Code in Fortran for FFT from "Programs for Digital Signal Processing", 1979, IEEE Press, ISBN 0-87942-127-4. The book is necessary to use and understand these source code listings.
http://members.tripod.com/michaelgellis/dsp/pgm05.html
Jens J. Nielsen's Home Page
Arbitrary length FFT C-source, 3D gravity simulator, quantization of FIR filter coefficients. C source.
http://home.get2net.dk/jjn
The ARC Parallel FFT Homepage
Parallel implementations of the Fast Fourier Transform at the High Performance Computing and Education Research Center (HPCERC).
http://www.arc.unm.edu/~bennett/fft/fft.html
fftpack
A package of Fortran subprograms for the fast Fourier transform of periodic and other symmetric sequences.
http://www.netlib.org/fftpack/
Row-oriented Multidimensional Fast Transform Library (RMFTL)
Power-of-two real and complex FFT software that is faster, and more accurate, than conventional iterative implementation of one-dimensional FFTs. Based on a propietary algorithm.
http://www.davis-inc.com/rmftl
Sigview - FFT Analysis Software
A real-time spectral analysis application with spectral analysis tools, statistical functions and visualization system. It can analyse data from WAV files or sound input from microphone or CD player. Shareware.
http://www.sigview.com/
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