Objective quality assessment of echo-impaired full-band speech signals

Flavio R. Avila, Leonardo O. Nunes, Luiz W.P. Biscainho, Alan F. Tygel, Bowon Lee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper describes a double-ended objective quality assessment method for evaluating full-band (sampled at 48 kHz) speech signals impaired by acoustic echo and background noise. The proposed method is based on a single metric of the ITU-T standard PEAQ (originally developed for audio signals) that, along with an appropriate mapping function, is shown to be able to reliably predict the overall quality of speech signals concurrently degraded by acoustic echo and background noise. In order to train and validate the proposed method, three speech signal databases were developed and subjectively assessed. One database is used only for training and testing purposes whereas the other two are employed in validation. Using the validation databases, it has been shown that the proposed method can predict the quality of signals degraded with a wider scope of acoustic echo and noise characteristics than those considered in its development.

Original languageEnglish
Title of host publication2014 International Telecommunications Symposium, ITS 2014 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479937431
DOIs
StatePublished - 5 Nov 2014
Event2014 International Telecommunications Symposium, ITS 2014 - Sao Paulo, Brazil
Duration: 17 Aug 201420 Aug 2014

Publication series

Name2014 International Telecommunications Symposium, ITS 2014 - Proceedings

Conference

Conference2014 International Telecommunications Symposium, ITS 2014
Country/TerritoryBrazil
CitySao Paulo
Period17/08/1420/08/14

Bibliographical note

Publisher Copyright:
© 2014 IEEE.

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