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dc.contributor.authorNicolson, Aaron
dc.contributor.authorPaliwal, Kuldip K
dc.date.accessioned2021-02-18T00:40:59Z
dc.date.available2021-02-18T00:40:59Z
dc.date.issued2020
dc.identifier.issn0001-4966
dc.identifier.doi10.1121/10.0002113
dc.identifier.urihttp://hdl.handle.net/10072/402313
dc.description.abstractMinimum mean-square error (MMSE) approaches to speech enhancement are widely used in the literature. The quality of enhanced speech produced by an MMSE approach is directly impacted by the accuracy of the employed a priori signal-to-noise ratio (SNR) estimator. In this paper, the a priori SNR estimate spectral distortion (SD) level that results in a just-noticeable difference (JND) in the perceived quality of MMSE approach enhanced speech is found. The JND SD level is indicative of the accuracy that an a priori SNR estimator must exceed to have no impact on the perceived quality of MMSE approach enhanced speech. To measure the JND SD level, listening tests are conducted across five SNR levels, five noise sources, and two MMSE approaches [the MMSE short-time spectral amplitude (MMSE-STSA) estimator and the Wiener filter]. A statistical analysis of the results indicates that the JND SD level increases with the SNR level, is higher for the MMSE-STSA estimator, and is not impacted by the type of background noise. Following the literature, a significant improvement in a priori SNR estimation accuracy is required to reach the JND SD level.
dc.description.peerreviewedYes
dc.languageEnglish
dc.publisherAcoustical Society of America
dc.relation.ispartofpagefrom1879
dc.relation.ispartofpageto1889
dc.relation.ispartofissue4
dc.relation.ispartofjournalJournal of the Acoustical Society of America
dc.relation.ispartofvolume148
dc.subject.fieldofresearchElectrical and Electronic Engineering
dc.subject.fieldofresearchcode0906
dc.subject.keywordsScience & Technology
dc.subject.keywordsLife Sciences & Biomedicine
dc.subject.keywordsAcoustics
dc.subject.keywordsAudiology & Speech-Language Pathology
dc.titleSpectral distortion level resulting in a just-noticeable difference between an a priori signal-to-noise ratio estimate and its instantaneous case
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationNicolson, A; Paliwal, KK, Spectral distortion level resulting in a just-noticeable difference between an a priori signal-to-noise ratio estimate and its instantaneous case, Journal of the Acoustical Society of America, 2020, 148 (4), pp. 1879-1889
dc.date.updated2021-02-18T00:39:09Z
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© 2020 Acoustical Society of America. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.hasfulltextFull Text
gro.griffith.authorPaliwal, Kuldip K.
gro.griffith.authorNicolson, Aaron M.


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