Maybe check this http://blog.inspirit.ru/?p=405
> From: Gerry Beauregard <[email protected]> > Reply-To: Flash Coders List <[email protected]> > Date: Mon, 2 Aug 2010 09:59:05 +0800 > To: Flash Coders List <[email protected]> > Subject: [Flashcoders] A fast FFT in Flash? > > > Does anyone know of a really good, fast FFT implementation in AS3? > > I write a lot of audio signal processing code in AS3, and some of it uses FFTs > (Fast Fourier Transforms) which can be pretty CPU intensive. I have my own > AS3 FFT which is pretty good (about 15x faster than the one in as3mathlib), > but is nonetheless ~7x slower than my own C++ FFT on which I based my AS3 > version, and over 20x slower than highly optimized native FFT implementations > (e.g. the one in Intel IPP). > > I've looked into Alchemy, but unfortunately it doesn't appear to have any > efficient means to pass Vectors of Numbers :-( I've come across a few blogs > where people discuss the possibility of doing FFTs with PixelBender, but I > haven't found any implementations yet. > > -Gerry Beauregard > > > _______________________________________________ > Flashcoders mailing list > [email protected] > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders This e-mail is intended only for the named person or entity to which it is addressed and contains valuable business information that is proprietary, privileged, confidential and/or otherwise protected from disclosure. If you received this e-mail in error, any review, use, dissemination, distribution or copying of this e-mail is strictly prohibited. Please notify us immediately of the error via e-mail to [email protected] and please delete the e-mail from your system, retaining no copies in any media. We appreciate your cooperation. _______________________________________________ Flashcoders mailing list [email protected] http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
