Re: equal loudness calculation (Jose-Javier Lopez )


Subject: Re: equal loudness calculation
From:    Jose-Javier Lopez  <jjlopez(at)DCOM.UPV.ES>
Date:    Mon, 18 Apr 2005 10:38:43 +0200

This is the analitic equation for A-Weighting. http://www.beis.de/Elektronik/AudioMeasure/WeightingFilters.html#A-Weighting Just, pass it to Z domain and use "a" and "b" coef. in a IIR filter. Very efficient ! JJ ----- Original Message ----- From: "Julian Rohrhuber" <rohrhuber(at)UNI-HAMBURG.DE> To: <AUDITORY(at)LISTS.MCGILL.CA> Sent: Tuesday, April 12, 2005 4:25 PM Subject: [AUDITORY] equal loudness calculation > I'm looking for a computationally efficient way to do a frequency > dependent amplitude compensation. The emphasis is much less accuracy > (especially not for different loudness levels) but more a reasonable > approximation - maybe a polynomial. > > Any hints? > > -- > > > > > > > > > . >


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