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Journal Article

A Linear-Phase Digital Equalizer with Cubic-Spline Frequency Response

Authors: Kraght, Paul H.

Journal of the Audio Engineering Society · Volume 40 · Issue 5 · pp. 403–414 · May 1992

Abstract

Designing a linear-phase digital equalizer involves a tradeoff between the smoothness of the frequency response and the independence of the equalizer bands. This is illustrated by using several shapes of bandpass amplitude functions. Cubic B-splines exhibit desirable characteristics as bandpass amplitude functions, namely, smooth frequency response and reduced and reduced impulse-response ringing. B-splines can be combined to improve the interband independence. An implementation of this type of equalizer is then discussed.

Details

Publication
Journal of the Audio Engineering Society
Volume
40
Issue
5
Pages
403–414
Publication date
May 6, 1992
Affiliation
Beckman Instruments, Brea, CA (See document for exact affiliation information.)
Type
Journal Article