天津津南方言擦音的声学特性研究

Acoustic Characteristics of Fricatives in Tianjin Jinnan Dialect

声学参数在擦音研究中是不可或缺的,以往研究基本是使用谱重心和分散度两个声学参数构建擦音格局,并且鲜少涉及方言擦音的研究。本文探究了天津津南方言的5个擦音的8个声学参数(相对时长、谱顶点、谱矩、相对振幅、后接元音第二共振峰起点频率)与其语音特征的关系,旨在补充天津方言的研究。方差分析和判别分析结果显示:8个声学参数可以有效地区分不同的5个发音位置、2个后接元音以及发音人性别。

Acoustic parameter is indispensable in fricative study, and the previous studies mainly build fricative pattern by using spectral peak location and dispersion. What’s more, the study on fricatives of dialects is rare. This study investigates the relationship between eight acoustic parameters (normalized duration, spectral peak location, spectral moment, normalized amplitude and F2 onset frequency) and phonetic features for five fricatives of Tianjin Jinnan dialect. The aim is to complement the study of Tianjin dialect. The analysis of variance and the discriminant analysis show that these 8 acoustic parameters can effectively distinguish 5 places of articulation, the following 2 vowels and the gender of the speakers.