上海普通话与普通话元音系统的声学特征对比研究  

A Contrastive Investigation of Vowel Systems Between Standard Mandarin and Shanghai-Accented Mandarin

作　　者：于珏 李爱军[2] 王霞 

机构地区：[1]北京振华旅游学校,北京100071 [2]中国社会科学院语言所,北京100732 [3]NOKIA中国研发中心,北京100027

出　　处：《中文信息学报》2004年第6期66-72,共7页Journal of Chinese Information Processing

摘　　要：本文通过对单音节字的声学测量及分析 ,对比上海市的地方普通话和普通话的元音系统 ,从而为汉语口语处理基本元音系统提供可靠的声学参数。发现 :1 受上海话自身元音系统的影响 ,上海普通话男女声学元音图都表现出一定的外延性。 2 上海普通话无论男女 ,[ , ]在声学元音图上的分布都有很大的重叠区。3 从共振峰模式图上看 :上海普通话 [y ,i, , ]的F1-F2距离都较标准普通话的大 ,其中 [ ]的共振峰模式几乎接近于 [ ]。 4 多数发音人的 [ ]都或多或少表现出双元音化趋势。Dialectal differences are widely investigated for dialect identification, language (L2) learning and pronunciation modeling for Automatic Speech Recognition (ASR). Especially in Chinese ASR systems, how to deal with the accent issue becomes a big challenge due to the variability of the language. We compared these pure monophthongs [,,a,u,,y,i] for 10 SM (Standard Mandarin) and 20 ASH (Shanghai-accented Mandarin) speakers in NOKIA-CASS corpus and tried to find out the differences in monophthongs between SC and ASH: (1)under the influence of its dialectal vowel inventory, the vocalic space of ASH would be inevitably more peripheral. (2)there is a large overlap between the two vowel ellipses of [,] in ASH speakers while in SC there is not. (3)in comparison with SC, the first two formants of [y,i,,] are all drawn much further in ASH speakers. Meanwhile the formant pattern of [] is very similar to that of [ ] in ASH speakers. (4)vowel [] in most speakers has a tendency of diphthongization, especially in ASH speakers.

关 键 词：计算机应用 中文信息处理 上海普通话 标准普通话 声学元音图 共振峰模式 口音 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]