Opens in a new tab

AES E-Library

← Back to search

Convention Paper

Balanced Phase Equalization; IIR Filters with Independent Frequency Response and Identical Phase Response

Authors: Eastty, Peter

AES Convention 133 · Paper 8790 · October 2012

Abstract

It has long been assumed that in order to provide sets of filters with arbitrary frequency responses but matching phase responses, symmetrical, finite impulse response filters must be used. A method is given for the construction of sets of infinite impulse response (recursive) filters that can achieve this aim with lower complexity, power, and delay. The zeros of each filter in a set are rearranged to provide linear phase while the phase shift due to the poles of each filter is counteracted by all-pass compensation filters added to other members of the set.

Details

Published in
AES Convention 133
AES Convention
133
Paper number
8790
Publication date
October 6, 2012
Session subject
Signal Processing Fundamentals
Affiliation
Oxford Digital Limited, Oxford, UK (See document for exact affiliation information.)
Type
Convention Paper