[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: equal loudness calculation
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@xxxxxxxxxxxxxx>
To: <AUDITORY@xxxxxxxxxxxxxxx>
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?
--
.