Title :
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
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);
Conference_Titel :
Universal Communication Symposium (IUCS), 2010 4th International
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-7821-7
DOI :
10.1109/IUCS.2010.5666762
