A suggestion of FFTW for Octave

[Jaiyong Lee]

Hi,
I recently tried FFTW ( www.fftw.org ) library.  It
has a Matlab callable MEX C file.
I did a benchmark against Matlab's generic FFT
function on SGI Octane.  FFTW is about 30~50% faster
and more accurate than Matlab's FFT.  I am thinking if
this library replaces FFTPACK for octave, it will be
beneficial.  Also, FFTW can be tuned especially for
Intel / Linux  architecture.   

Thanks.

=====
Jaiyong Lee, Ph.D of Acoustics, MIT

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