The concept of noncausal zero-phase IIR filters is used to create linear-phase sound processing filters (e.g., sound controllers, equalizers, or crossover filters). Design methodologies for the realization of a broad class of magnitude responses are presented. The linear-phase IIR filters are compared to their equivalent linear-phase FIR filters. Several sound processing filters have been designed as linear-phase IIR filters. The results of their computer simulation and implementation on a DSP are presented.
Author:
Azizi, Seyed-Ali
Affiliation:
Becker Automotive Systems, Karlsbad, Germany
AES Convention:
102 (March 1997)
Paper Number:
4506
Publication Date:
March 1, 1997
Session Subject:
Signal Processing; Late Papers
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