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Convention Paper

Aspects of MLS Measuring Systems

Authors: Vanderkooy, John

AES Convention 93 · Paper 3398 · October 1992

Abstract

A maximum-length sequence (MLS) has mathematical properties that make it very useful as an excitation signal for measurement in audio and acoustics. This paper explores the pathology of MLS systems when there is distortion of various kinds. The resulting artefacts can falsify a reverberation plot, reduce the distortion immunity of the measurement system, and give rise to spurious reflections in the impulse response, to name a few negative aspects. On the other hand, MLS systems can also allow the determination of the total distortion of an electroacoustic system when excited by a signal of any desired spectrum, and sensitive tests for determining the presence of distortion are possible due to the time-domain separation of linear and nonlinear components.

Details

Published in
AES Convention 93
AES Convention
93
Paper number
3398
Publication date
October 6, 1992
Session subject
Measurement
Affiliation
University of Waterloo, Department of Physics, Waterloo, Ontario, Canada (See document for exact affiliation information.)
Type
Convention Paper