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Convention Paper

Optimal Error Spectrum Shaping with Linkwitz-Riley IIR Crossover Filters

Authors: Han, Kuo-Ruey

AES Convention 95 · Paper 3713 · October 1993

Abstract

To design a low round-off noise crossover filter with simple structure, such as the D2 form, offers a great challenge, especially when the frequency of interest is very low compared to the sampling frequency. This paper introduces error spectrum shaping (ESS) techniques along with the state space computation of ESS coefficients and noise gain. Several examples show that the ESS techniques can be successfully applied to the Linkwitz-Riley filter topology to significantly reduce the finite word-length effects, while at the same time preserving the computational efficiency.

Details

Published in
AES Convention 95
AES Convention
95
Paper number
3713
Publication date
October 6, 1993
Session subject
DSP Theory and Applications
Affiliation
Adamson Systems Engineering, Ajax, Ontario, Canada (See document for exact affiliation information.)
Type
Convention Paper