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Convention Paper

The Effect of Loudness Overflow on Equal-Loudness-Level Contours

Authors: Simpson, Andrew; Reiss, Joshua

AES Convention 130 · Paper 8367 · May 2011

Abstract

This paper presents a formal derivation of the Loudness Overflow Effect (LOE), which describes the impact of nonlinear distortion on loudness. Computational analysis is then performed, comprised of two experiments involving two compressive static nonlinearities, and using two well-known time-varying loudness models. The results characterize the nonlinearities in terms of LOE as a function of frequency and of listening level in the case of 250-ms pure-tone stimuli, and in terms of the traditional equal-loudness-level contours. The analysis is then extended to synthesized wind instruments for one of the nonlinearities. The effect of the nonlinearity on loudness as a function of musical note fundamental frequency and listening level is described for various synthesized instruments.

Details

Published in
AES Convention 130
AES Convention
130
Paper number
8367
Publication date
May 6, 2011
Session subject
Posters: Perception and Evaluation
Affiliation
Centre for Digital Music, Queen Mary University of London, London, UK (See document for exact affiliation information.)
Type
Convention Paper