From mboxrd@z Thu Jan 1 00:00:00 1970 Received: (from majordomo@localhost) by pauillac.inria.fr (8.7.6/8.7.3) id TAA08995; Mon, 3 Jun 2002 19:14:16 +0200 (MET DST) X-Authentication-Warning: pauillac.inria.fr: majordomo set sender to owner-caml-list@pauillac.inria.fr using -f Received: from nez-perce.inria.fr (nez-perce.inria.fr [192.93.2.78]) by pauillac.inria.fr (8.7.6/8.7.3) with ESMTP id TAA08990 for ; Mon, 3 Jun 2002 19:14:15 +0200 (MET DST) X-SPAM-Warning: Sending machine is listed in blackholes.five-ten-sg.com Received: from athlon.baretta.com (r-mi214-6a246.tin.it [62.211.4.246]) by nez-perce.inria.fr (8.11.1/8.11.1) with ESMTP id g53HEEn29956 for ; Mon, 3 Jun 2002 19:14:14 +0200 (MET DST) Received: from baretta.com (localhost.localdomain [127.0.0.1]) by athlon.baretta.com (Postfix) with ESMTP id 54E68273C7 for ; Mon, 3 Jun 2002 21:19:19 +0200 (CEST) Message-ID: <3CFBC137.4010309@baretta.com> Date: Mon, 03 Jun 2002 21:19:19 +0200 From: Alessandro Baretta Organization: Baretta srl -- www.baretta.com User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0rc1) Gecko/20020417 X-Accept-Language: it, en MIME-Version: 1.0 To: Ocaml Subject: [Caml-list] Signal analysis Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-caml-list@pauillac.inria.fr Precedence: bulk Hello. I need some advice on a project I will have to start in a few days. I need to write code to perform spectral analysis of digital signals. I do not know the details yet, but I know that I will have to perform Fourier trasformations on fairly large arrays, let us say in the neighborhood 2^16 samples. Since the data comes from text files, I would like to use Ocaml/Ocamllex/Ocamlyacc, but will I be able to perform the numerical part at a decent speed? I realize "decent" here could mean just about anything, but since I have no real time specs, I simply have to crunch the data fast enough (on a fast enough PC) so as to prevent the user from getting exceedingly bored and frustrated between commands. Are there any optimized FFT (and signal analysis) libraries for Ocaml, or should I code the whole thing from scratch? I would appreciate any ideas from anyone having some previous signal analysis experience with Ocaml. Thank you very much. Alex ------------------- To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/ Beginner's list: http://groups.yahoo.com/group/ocaml_beginners