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Convention Paper

Measurement of Harmonic Distortion Audibility Using a Simplified Psychoacoustic Model

Authors: Temme, Steve; Brunet, Pascal; Qarabaqi, Parastoo

AES Convention 133 · Paper 8704 · October 2012

Abstract

A perceptual method is proposed for measuring harmonic distortion audibility. This method is similar to the CLEAR (Cepstral Loudness Enhanced Algorithm for Rub & buzz) algorithm previously proposed by the authors as a means of detecting audible Rub & Buzz, which is an extreme type of distortion [1,2]. Both methods are based on the Perceptual Evaluation of Audio Quality (PEAQ) standard [3]. In the present work, in order to estimate the audibility of regular harmonic distortion, additional psychoacoustic variables are added to the CLEAR algorithm. These variables are then combined using an artificial neural network approach to derive a metric that is indicative of the overall audible harmonic distortion. Experimental results on headphones are presented to justify the accuracy of the model.

Details

Published in
AES Convention 133
AES Convention
133
Paper number
8704
Publication date
October 6, 2012
Session subject
Measurement and Models
Affiliation
Listen, Inc., Boston, MA, USA (See document for exact affiliation information.)
Type
Convention Paper