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Journal Article

Perception-Based Automatic Classification of Background Noise in Super-Wideband Telephony

Authors: Tiemounou, Sibiri; Jeannès, Régine Le Bouquin; Ewert, Vincent Barriac

Journal of the Audio Engineering Society · Volume 62 · Issue 11 · pp. 776–781 · November 2014

Abstract

Given the effort required to perform subjective tests of quality of service in super-wideband telephone networks, an objective model of perceived degradation was created. This paper describes an efficient classification model of background noise arising at the originating side of super-wideband telephony. Classification depends on the impact on the perceived voice quality at receiving side from originating noises. This approach extends the research findings of narrowband telephony. Subjective experiments showed that background noises can be divided into three relevant classes: environmental noise, breath noise, and crackling noise. Each of these corresponds respectively to spectral flow, acoustic power variations, and the noise spectral centroid. Based on three quality degradation indicators, tests showed 82% correct classification of unknown noise signals.

Details

Publication
Journal of the Audio Engineering Society
Volume
62
Issue
11
Pages
776–781
Publication date
November 6, 2014
Affiliation
INSERM, Rennes, France; Université de Rennes, Rennes, France; Orange Labs, Lannion, France (See document for exact affiliation information.)
Type
Journal Article