Readers 读者
3rd tone sandhi in standard Chinese: A corpus approach
大语料库中的普通话上声连读变调
Jiahong Yuan 袁家宏; Yiya Chen 陈轶亚
Abstract 摘要
In Standard Chinese, a low tone (Tone3) is often realized with a rising F0 contour before another low tone; this tone change is known as the 3rd tone sandhi. This study investigated the acoustic characteristics of the 3rd tone sandhi in Standard Chinese in telephone conversations and broadcast news speech. The sandhi rising tone was found to be different from the lexical rising tone (Tone2) in disyllabic words in two measures: the magnitude of the F0 rise and the time span of the F0 rise. We also found that word frequency affected the realization of the sandhi rising tone. Specifically, the sandhi rising tone in highly frequent words exhibited a smaller F0 rise (i.e., a greater difference from the lexical rising tone) than that observed in less frequent words. This result suggests that different processes may be involved in producing high- vs. low-frequency words in Chinese.
本文通过对普通话电话交谈(HKUST Mandarin Telephone Speech)和新闻广播(Hub4 Mandarin Broadcast NewsSpeech)大语料库的分析来研究上声连读变调的声学实现。我们发现上声连读变调的升调调形和阳平的升调调形在基频上升幅度和上升转折点这两个参数上都有所不同。另外，词频对上声连读变调和阳平本调调形的影响也是不同的。连读变调的升调在高频词中的上升幅度比在低频词中小，也就是说，高频词中的上声连读变调和阳平本调更加不同。这一结果表明汉语高频词和低频词在言语生成层面存在差异。
Subject Keywords 关键词
Tone 声调 Tone sandhi 连读变调 Telephone conversation 电话交谈 Radio news 新闻广播 Corpus 语料库