基于调素理论的普通话轻声调值分析模型

The Analytical Model of Neutral Tone Values in Mandarin Based on Toneme Theory

文章用实验方法研究普通话轻声的表层调值,实验结果为:阴平后轻声HL、阳平后轻声HL、上声后轻声HH、去声后轻声LL。听辨实验证实,轻声各调素不完全等长;音高实验验证,轻声表层调值可信。轻声有底层调素L,文章提出"调素抻伸"和"调素移位"概念解释轻声调值实现过程,最后给出轻声调值分析模型。

This paper studies the surface tone values of Mandarin in an experimental manner,whose study result indicates that the neutral tone is HL after the high and level tone,the neutral tone HL after the rising tone,the neutral tone HH after the falling-rising tone and the neutral tone LL after the falling tone. As is verified by the perception experiment,each toneme is unequal in its neutral tone,while the surface tone value is credible in its neutral tone,as is testified by the pitch experiment. Considering the existence of the substratum toneme L in the neutral tone,this paper has not only proposed two concepts of ＂toneme prolongation＂and ＂toneme delocalization＂to illustrate the realization process of the neutral tone value but also presented the analytical pattern of the neutral tone value.