Transcoded speech contemporary objective quality measurements reliability

Author

Holub, Jan ; Blaskova, L.

Author_Institution

Dept. of Meas. 13138, FEE CTU, Prague

fYear

2008

fDate

24-26 April 2008

Firstpage

106

Lastpage

109

Abstract

Speech transcoding (coder tandeming) is unavoidable source of transmission quality degradation for ad-hoc or permanently interoperating networks. Test methodology and results of voice transmission quality measurement for transcoded voice in coder tandem arrangement is described. The objective tests have been performed using ITU-T P.862 (PESQ) and P.563 (3SQM) algorithms. The subjective tests results based on ITU-T P.800 are also presented. The objective results confirm additional degradations caused by above mentioned transcodings, highlighting coder combinations causing extreme impairments. The subjective tests quantify objective measurement accuracy.

Keywords

ad hoc networks; speech coding; telecommunication network reliability; voice communication; 3SQM; ITU-T P.800; ITU-T P.862; P.563 algorithms; PESQ; ad-hoc networks; coder tandem arrangement; permanently interoperating networks; speech transcoding; test methodology; transmission quality degradation; voice transmission quality measurement; Degradation; Digital signal processing; Distortion measurement; Frequency estimation; GSM; Humans; Signal processing algorithms; Speech; Testing; Transcoding;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Telecommunications Symposium, 2008. WTS 2008

Conference_Location

Pomona, CA

ISSN

1934-5070

Print_ISBN

978-1-4244-1869-5

Electronic_ISBN

1934-5070

Type

conf

DOI

10.1109/WTS.2008.4547552

Filename

4547552