普通话动态腭位研究

Electropalatography Studies on Articulation of Standard Chinese

被誉为"实时地看语音"的动态腭位技术可以显示发音过程的舌-腭接触图像,因此被广泛地应用于辅音的发音部位和发音方法的研究,特别是在协同发音的研究中有更大的应用价值。为此,我们在2001年建立了一个规模较大的《普通话语音动态腭位数据库》,共含有2081个音节。我们采用接触面积比、接触指数(CA、CC、CP)和约束度(CD)等指数研究了普通话辅音发音的生理特点和双音节环境中协同发音的情况。研究显示:这套指数对描述辅音的发音部位和发音方法是十分有效的;普通话鼻韵尾的变化是有规律的;辅音声母在协同发音中的约束度也是可预测的。

The main advantage of Electropalatography （EPG） lies in its function of ＂seeing speech in real time＂, which means that it can display the images process of speech articulation. It has been widely used of lingua - palatal contact patterns during the whole in the study of eoarticulation, and has also been used as an important instrument in the study of speech production, language teaching, and language training for people with speech disorder. To further investigate the articulation of speech sounds in Standard Chinese, we built the ＂Corpus of the Electropalatography of Speech in Standard Chinese＂ in 2001. The corpus consists of 2081 syllables. We adopted a set of contact index methods proposed by Fontdevila et al. to describe the lingua -palatal contact patterns by means of several indices： CA（ contact anteriority）, CC （contact centrality）, and CP（ contact posterity）. Studies have shown that these contact indices are very effective for describing place and manner of articulation for consonants. Accordingly, we proposed the concept of constraint degree （CD） by which variable of consonants can be speculated during co - articulation.