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Natural Science Forum / Physics / Acoustics / September 2005PC based analysis
Looking for a software package for a PC that will take a digital audio signal (WAV file) and do LEQ measurement in bands filtered with IEC standard octave or 1/3 octave band filters. Not FFT. Real time not necessary. Is there such a thing? I'm looking for a supported product, not a recipe.  SignatureTony W My e-mail address has no hyphen - but please don't use it, reply to the group. > Looking for a software package for a PC that will take a digital audio > signal (WAV file) and do LEQ measurement in bands filtered with IEC standard > octave or 1/3 octave band filters. Not FFT. Real time not necessary. Is > there such a thing? I'm looking for a supported product, not a recipe. At the risk of recommending software that is more "recipe" than "supported product" I'll note that the "Octave" scripts (<http://tinyurl.com/8nnko>) for Matlab (or clones) have worked fine for me. If you do have Matlab, the "Real time octave analysis" (<http://tinyurl.com/cqlv8>) scripts might work well for you out-of-the-box (I haven't tried it). Herb SignatureHerb Singleton usenet3@ross-specrtrum.com Sound & Vibration Measurements http://www.cross-spectrum.com > In article <Hz6Ge.78671$G8.61685@text.news.blueyonder.co.uk>, > At the risk of recommending software that is more "recipe" than > "supported product" I'll note that the "Octave" scripts [quoted text clipped - 4 lines] > (<http://tinyurl.com/cqlv8>) scripts might work well for you > out-of-the-box (I haven't tried it). Thanks, I knew there must be a way using Matlab but I was hoping for an alternative. Real time is not necessary. SignatureTony W My e-mail address has no hyphen - but please don't use it, reply to the group. > Thanks, I knew there must be a way using Matlab but I was hoping for an > alternative. Real time is not necessary. lookfor scielab it's a free (afaik) software which does almost the same as matlab... even some matlab-script do work! If you've no problem to use a product with french origin... (english documentation) :-) Lothar Matlab or Labview will be usefull tools for you Tony - You might want to look at the Nelson Acoustical Engineering Sound = Quality Analyzer which does 1/3 OB plus a lot of other anlaysis on WAV format = files. There's information at : http://www.viacoustics.com/naesqtools.html Jeff > Looking for a software package for a PC that will take a digital audio > signal (WAV file) and do LEQ measurement in bands filtered with IEC > standard octave or 1/3 octave band filters. Not FFT. Real time not > necessary. Is there such a thing? I'm looking for a supported product, > not a recipe. |
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