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Conference Paper

Optimizing the Magnitude Response of Matched Z-Transform Filters ("MZTi") for Loudspeaker Equalization

Authors: Chauhan, Ojas; Gunness, David

AES Conference: 32nd International Conference · Paper 2 · September 2007

Abstract

The magnitude response of matched z-transform (MZT) filters deviates from the response of analog filters in a relatively gradual fashion. The error can be minimized by adding zeros to an all-pole filter or by shifting the position of the poles or zeros in a biquadratic filter. A set of efficient closed form algorithms is presented which provide optimum coefficients. The resulting filters (dubbed “MZTi”) display excellent agreement with the analog target filters, both in their magnitude and phase responses.

Details

Published in
AES Conference: 32nd International Conference
Paper number
2
Publication date
September 6, 2007
Session subject
DSP for Loudspeakers
Affiliation
Eastern Acoustic Works, Inc. (See document for exact affiliation information.)
Type
Conference Paper