On Sat, Jan 29, 2005 at 07:20:39 +0100, Florian Schmidt wrote: > On Sat, 29 Jan 2005 06:55:31 +0100 > Florian Schmidt <mista.tapas@xxxxxxx> wrote: > > > tarball[s] here [minor optimization attempts since last tarball]: > > > > http://affenbande.org/~tapas/jack_convolve/ > > about optimizations: like Anders Torger notes in his docs to brutefir: > > http://www.ludd.luth.se/~torger/brutefir.html#bruteconv_4 > > the cycle burner is the complex multiplication. So if anyone has SIMD > assembler routines for complex multiplication of two float buffers > (fftwf_complex *) in his cupboard, please bring it out :) > > jack_convolve uses complex data format, not half-complex like brutefir. > so i suppose i can't simply rip his code ;) I'd recommend the half-complex format, it makes hte FFT much faster and reduces the ammount of memory you have to touch. The only pain is that the format is a bit wierd to work with. - Steve
