普通话四音节词和短语中声调协同发音模式

Tonal coarticulation patterns in quadrisyllabie word and phrase of mandarin

本文研究用正常重音念的普通话四音节词和短语的声调协同发音问题。本实验看到,声调协同发音对各音节声调起点和终点所引起的F_0扰动,一般地说,要大于音节中这些点处不同元音内在F_0的差异。至于声调协同发音,本实验看到,一般地说,声调协同发音是单向的,而且顺向作用只影响其后接声调的起点,逆向作用只影响前接声调的终点;声调协同发音引起的F_0扰动具有一定模式。声调协同发音受词重音模式所制约。声调协同发音还跟念词和短语的速度有关。

Quadrisyllable words and phrases with normal stress of mandarin were used to study the tonal coarticulation. It was found that the Fo perturbation at the start-point and the ending-point of the Fo curves in each syllable caused by tonal coarticulation larger than the difference of the intrinsic Fo of vowels at the start-point and the ending-point. As for the tonal coarticulation, it was further found that in general the coarticulatory effects are unidirectional, and the carryover effect does not extend to the endind-point of tone-section and the anticipatory effect does not extend to the start-point of that, and the Fo perturbation by tonal coarticulation has its pattern. It is highly probable that tonal coarticulation is conditioned by stress. Tonal coarticulation in word and phrase may be related to the speed with which word or phrase is pronounced.