NDLI: Objective speech quality assessment of compounded digital telecommunication systems

Content Provider	IEEE Xplore Digital Library
Author	Petersen, K.T. Sorensen, J.A. Hansen, S.D.
Copyright Year	1997
Description	Author affiliation: Tele Danmark A/S, Taastrup, Denmark (Petersen, K.T.)
Abstract	Digital telecommunication networks involve multiple number of public switched telephone networks (PSTN), cellular and mobile systems and to some extent also satellite systems. Most of these networks contain non-linear speech coders which may degrade the overall end-to-end quality of speech. An important problem is how to assess the speech quality of such compounded systems. The object of this paper is to describe the development of a proposed three-layer model for objective speech quality assessment. The design of the objective measure is based on a subjective test of the speech quality of 16 compounded transmission paths and involves 40 subjects using 21 different rating scales. The subjective test supports the definition of four main perceptual dimensions to be used in the second layer of the proposed model. These defined perceptual elements form the basis of designing an objective measure for predicting the total quality of a given telecommunication connection.
Starting Page	137
Ending Page	142
File Size	320869
Page Count	6
File Format	PDF
ISBN	0780337808
DOI	10.1109/MMSP.1997.602626
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-06-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Quality assessment Testing Distortion measurement Degradation Humans Speech coding Phase change materials Mathematical model Telecommunication switching Telephony
Content Type	Text
Resource Type	Article

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