Date: Sun, 24 Nov 2013 20:01:09 +0100 From: Daniel =?ISO-8859-1?Q?Pat=F3n?= <d.paton.d@gmail.com> To: freebsd-questions@freebsd.org Subject: Re: Many thanks to Jason Bacon Message-ID: <20131124200109.9ee6e380ca5dd9f41aa9cc04@gmail.com> In-Reply-To: <1385308505.4081.51434569.06A345C6@webmail.messagingengine.com> References: <20131124031940.c78cd86d27f21fa0a6115c57@gmail.com> <1385308505.4081.51434569.06A345C6@webmail.messagingengine.com>
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> I'm genuinely curious why it works better for you on FreeBSD than > Debian. Can you elaborate? I have no idea what this software does. OK. This software analyze mathematically the sound files. For example: spec= trum, harmonics, formants, pitch, similitude between sounds, periodicity, e= tc... Sound files have a high quantity of information. Animal sounds can ha= ve frequencies between 20 and 20000 Hz or even more if you are studying spe= cies that emit ultrasounds such as cetaceans. A simple file of 5 minutes of= a dolphin that a range between 20 and 150000 Hz that vary continuously. A = simple spectra of this file in a normal computer can require 15 minutes in = the calculus. The first problem for me is determining the software that I n= eed. Audacity is quite good editing but is limited in the mathematical info= rmation that analyze. R have sound libraries that are very useful but curio= usly can not with long sound files. Even I had tested by SSH a computer in = the Physics Department with R under a Debian system, with 32 processors, 64= GB and the cost in computing time is very high. Probably this is due to th= e design in the construction of the software that can not use the parallel = processing of information. Praat is the best election for the mathematical = analysis of very long audio files, almost in my case. The secondary questio= n is the operating system. As I only can use Praat in my laptop I need the = maximum performance. I had observed that FreeBSD respond very good to high = consume rates. Linux is slower. Probably this difference is minor for norma= l work but empirically I observe important differences. With Debian in many= occasions my laptop is completely blocked. When I use FreeBSD I can prepar= e the analysis of a sound file and continue with the rest of activities (ma= il, web, text processor, etc...). My laptop never is blocked with FreeBSD a= nd the time of analysis is minor. This is my experience but I have not benc= hmarks or detailed explanations. Regards --=20 ******************************************************** Daniel Pat=F3n Dom=EDnguez Numerical Ecology. Ecology Unit Department of Plant Biology, Ecology and Earth Sciences Faculty of Sciences. University of Extremadura Avda. Elvas s/n 06071 Badajoz (Spain) http://unex.academia.edu/DanielPatonDominguez https://www.researchgate.net/profile/Daniel_Paton/ http://sites.google.com/site/numericalecologyuex/home ********************************************************
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