Variable Voice Likability Affecting Subjective Speech Quality Assessments
Variable Voice Likability Affecting Subjective Speech Quality Assessments
复制标题
影响主观语音质量评估的可变语音可爱度
DOI:
10.1109/qomex.2018.8463432
复制
发表时间:
2018
期刊:
影响因子:
--
通讯作者:
J. Beerends
中科院分区:
文献类型:
--
作者:
Laura Fernández Gallardo;Gabriel Mittag;Sebastian Möller;J. Beerends
In telephone conversations, transmitted speech of good to excellent quality is desired for enhanced Quality of Experience and to sustain lasting customer loyalty. Subjective mean opinion scores account for perceived transmitted quality, while instrumental models, such as POLQA, are able to estimate the subjective judgments. To perform subjective or instrumental quality measurements, the International Telecommunication Union recommends to employ two sentences from both, male and female speakers as speech material. In this paper, we have examined whether subjective and instrumental MOS ratings are affected by perceptual voice likability. A listening test has been conducted over 8 degradations with 12 extremely likable and unlikable male and female speakers. Statistically significant effects of gender and of voice likability have been detected on subjective MOS, whereas instrumental MOS was only affected by gender differences. These results can contribute to further improvements needed in the POLQA perceptual modeling, as well as to the selection of speakers for speech quality assessment tests.