普通话单音节中爆发音的VOT分析

VOT Analysis of Stops in Mono-syllables of Standard Chinese

普通话单音节中爆发音的VOT(浊音起始时间)已经有一些测量数据,但语料都相对较少。本文在一定程度上扩大了语料,作了更详细的考察,并通过统计分析就相关问题进行探讨,以期对VOT与各种因素之间的关系有更深入的了解。得到的结论是:在不送气音中部位效应较为明显,即舌根音VOT显著长于双唇音和舌尖音,但双唇音和舌尖音之间不存在这种关系。在送气音中部位效应较弱。以前有研究指出"后接高元音对VOT产生影响",其实对/i*来说并不明显,而/u/对爆发音VOT的影响是成部位的。这些结论进一步深化了对辅音声学特点的认识,对语音声学分析具有参考意义。

A detailed VOT survey of stops in mono-syllables of Standard Chinese is conducted,and some related questions are examined via statistical analysis.Place effect is obvious in un-as- pirates,i.e.the VOTs of velars are much longer than those of bilabials and dentals,while no such effect exists between bilabials and dentals.Place effect is very weak in aspirates. That high vowel may lengthen VOT of the anterior stops,as some investigations suggested, is not effective on high front vowel/i/,and high back vowel/u/is effective but just applica- ble to some places.The vowel /u/ can lengthen VOTs of bilabials markedly,and lengthen VOTs of velars in a certain extent, but no lengthening on dentals.