These fft techniques require a lot of computing power. There's a patch forfor fftw3, but I never tried it: http://lists.puredata.info/pipermail/pd-announce/2004-02/000506.html https://sourceforge.net/tracker/?func=detail&atid=478072&aid=1055258...
the fftw3 support is in devel since more than one year ... more than 2 times faster than the mayer fft used by miller ...
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