汉语普通话句子重音在时长方面的声学表现

研究包括两部分。在第一部分，通过对由10个发音人发音的148条句子中的4个同时长方面的声学特征的分析发现：（1）当句子重音强调词时，时长的增加主要集中在这个词的重读音节上；（2）当句子重音强调词的某个音节时，时长的延长主要集中在这个音节上。在这第二部分，通过使用上述语句的知觉实验发现，句子重音强调的词的语句和句子重音强调这个词的重读音节的语句相对于它们的语境是可以相互替换的，这种相互可替换性起因于这两种语句声学表现方面的相似性。

THE ACOUSTIC CUES IN DURATION OF SENTENCE PROMINENCE IN STANDARD CHINESE

Two parts are included in this research. In the first part, by investigating the duration cues of 4 words in 148 sentences which are read loudly by 10 speakers, the results showed that (1)when sentence prominence emphasizes on some word,the duration - lengthening mainly localized on the stressed syllable of the word; (2) when sentence prominence emphasizes on some syllable of a word, the duration - lengthening mainly localized on the syllable. In the second part, we have, by perception experiment with the above sentences, found that the sentence in which sentence prominence emphasizes on some word and the sentence in which sentence prominence emphasizes on the stressed syllable of the word can replace each other respect of their contexts, which results from the resemblance in acoustic cues of these two kinds of sentences.