Comparison of MOS evaluation characteristics for Chinese, Japanese, and English in IP telephony

Author

Cai, Zhenyu ; Kitawaki, Nobuhiko ; Yamada, Takeshi ; Makino, Shoji

Author_Institution

Grad. Sch. of Syst. & Inf. Eng., Univ. of Tsukuba, Tsukuba, Japan

fYear

2010

Firstpage

112

Lastpage

115

Abstract

Communication quality in IP telephony is rated in terms of the Mean Opinion Score (MOS), which is an Absolute Category Rating (ACR) scale. There is a problem when comparing subjectively evaluated MOSs in that the evaluation results are strongly affected by differences in language, the instruction words used for the evaluation, and the nationality of the evaluator. To solve these problems, ITU-T SG12 has started to investigate the cultural and language dependencies of subjective quality evaluations undertaken with the MOS method for speech/video/multimedia. In this paper, we present the results of a comparison of the MOS evaluation characteristics for Chinese, Japanese, and English.

Keywords

Internet telephony; natural language processing; quality of service; social aspects of automation; Chinese language; English language; IP telephony; ITU-T SG12; Japanese language; MOS evaluation characteristics; absolute category rating scale; communication quality; cultural dependencies; instruction words; language dependencies; mean opinion score; subjective quality evaluations; Correlation; Encoding; Equations; Indexes; Quality assessment; Speech; Wideband; ITU-T Study Group 12; Language Dependency; Mean Opinion Score (MOS); Nationality Dependency; Quality of Experience (QoE);

fLanguage

English

Publisher

ieee

Conference_Titel

Universal Communication Symposium (IUCS), 2010 4th International

Conference_Location

Beijing

Print_ISBN

978-1-4244-7821-7

Type

conf

DOI

10.1109/IUCS.2010.5666762

Filename

5666762