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New single-ended objective measure for non-intrusive speech quality evaluation

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Show simple item record Mahdi, Abdulhussain E. Picovici, Dorel 2014-10-28T11:11:12Z 2014-10-28T11:11:12Z 2010
dc.description peer-reviewed en_US
dc.description.abstract This article proposes a new output-based method for non-intrusive assessment of speech quality of voice communication systems and evaluates its performance. The method requires access to the processed (degraded) speech only, and is based on measuring perception-motivated objective auditory distances between the voiced parts of the output speech to appropriately matching references extracted from a pre-formulated codebook. The codebook is formed by optimally clustering a large number of parametric speech vectors extracted from a database of clean speech records. The auditory distances are then mapped into objective Mean Opinion listening quality scores. An efficient data-mining tool known as the self-organizing map (SOM) achieves the required clustering and mapping/reference matching processes. In order to obtain a perception-based, speaker-independent parametric representation of the speech, three domain transformation techniques have been investigated. The first technique is based on a perceptual linear prediction (PLP) model, the second utilises a bark spectrum (BS) analysis and the third utilises mel-frequency cepstrum coefficients (MFCC). Reported evaluation results show that the proposed method provides high correlation with subjective listening quality scores, yielding accuracy similar to that of the ITU-T P.563 while maintaining a relatively low computational complexity. Results also demonstrate that the method outperforms the PESQ in a number of distortion conditions, such as those of speech degraded by channel impairments. en_US
dc.language.iso eng en_US
dc.publisher Springer en_US
dc.relation.ispartofseries Signal Image and Video Processing;4 (1), pp. 23-38
dc.rights The original publication is available at en_US
dc.subject speech quality assessment en_US
dc.subject speech processing en_US
dc.subject data mining en_US
dc.subject quality of experience (QoE) en_US
dc.subject quality of service (QoS) en_US
dc.subject psychoacoustic sound representation en_US
dc.subject audio quality en_US
dc.subject coders en_US
dc.title New single-ended objective measure for non-intrusive speech quality evaluation en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US 2014-10-21T17:11:23Z
dc.description.version accepted
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 1130078
dc.internal.copyrightchecked Yes
dc.contributor.funder Plassey Campus Centre
dc.description.status peer-reviewed

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