http://cpp.tribe.net/thread/4f720a75-418b-489d-a835-0ea050f0d57b?format=rss Tribe.net. Local Connections http://CPP.tribe.net/thread/4f720a75-418b-489d-a835-0ea050f0d57b#7f9d6ac3-14c7-4d1b-9f42-150595f957b6 Unless you really understand the underlying math, principles, and resampling of FFTs, you may be in for a rough time if you intend to write the actual code yourself, even with sample code. There are a few samples to free code and you may be able to use them as is. Sorry, I was unable to find the link I used but it shouldn't take much searching if that's what you want to do. Many sites that offered free code really want you to pay for lib you can link with so be wary and don't waste your time unless you do want to go that route. Mon, 06 Feb 2006 21:21:03 GMT http://CPP.tribe.net/thread/4f720a75-418b-489d-a835-0ea050f0d57b#7f9d6ac3-14c7-4d1b-9f42-150595f957b6 Hypno 2006-02-06T21:21:03Z http://CPP.tribe.net/thread/4f720a75-418b-489d-a835-0ea050f0d57b#2884334e-b296-4718-9c37-5c0de22c8248 www.fftw.org/ Mon, 06 Feb 2006 16:27:03 GMT http://CPP.tribe.net/thread/4f720a75-418b-489d-a835-0ea050f0d57b#2884334e-b296-4718-9c37-5c0de22c8248 Andriy 2006-02-06T16:27:03Z http://CPP.tribe.net/thread/4f720a75-418b-489d-a835-0ea050f0d57b#dbc8244d-1fb0-4afe-9fdf-f09a866e7c39 Indeed. If you dont mind being coupled to Matlab (you will be coupled to something anyway unless you write it yourself), it has an API you can use. If you want it all in c++ this library does exactly what you need (although I have not used it and cant vouch for it): http://www.matpack.de/ Mon, 09 Jan 2006 10:05:49 GMT http://CPP.tribe.net/thread/4f720a75-418b-489d-a835-0ea050f0d57b#dbc8244d-1fb0-4afe-9fdf-f09a866e7c39 Jason 2006-01-09T10:05:49Z http://CPP.tribe.net/thread/4f720a75-418b-489d-a835-0ea050f0d57b#d0ceedd6-8598-4654-8d16-4d403870bbd3 Alan, It's best I think to view C (and to a lesser extent, C++) as a low-level language, so there are no math routines that I know of that are part of the CRT for doing FFTs and the like. However, there are many math libraries out there ... i'd do a google search and see what it comes back with. Regards, John Falling You - exploring the beauty of voice and sound http://www.fallingyou.com Mon, 09 Jan 2006 07:40:20 GMT http://CPP.tribe.net/thread/4f720a75-418b-489d-a835-0ea050f0d57b#d0ceedd6-8598-4654-8d16-4d403870bbd3 John Michael 2006-01-09T07:40:20Z http://CPP.tribe.net/thread/4f720a75-418b-489d-a835-0ea050f0d57b#caae9168-14db-41bb-bd3f-e78a3001fc55 Hi all; So, I'm in the process of translating my matlab code into C to run on a parallel system. I'm brand spankin' new to C but have be coding in matlab for about 18 months. In my current code, I transform my data through use of convolution and fft. Matlab has built in functions for these manipulations. As I'm not one for re-inventing the wheel, I was wondering if there are C functions available for these two processes (convolution and fft)? I have some information about how to write these functions up but it would be, of course, easier if these functions exist in some library that I could just add to my program. Anyone have any ideas on this? Thanks. Alan Mon, 09 Jan 2006 07:17:40 GMT http://CPP.tribe.net/thread/4f720a75-418b-489d-a835-0ea050f0d57b#caae9168-14db-41bb-bd3f-e78a3001fc55 $item.owner.firstName 2006-01-09T07:17:40Z