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本文考察了语篇修辞层级结构边界的韵律表现。对由20个语篇构成的语料库进行了修辞结构的层级标注和声学分析。声学参数主要采用小句边界处无声段,音高重置和边界前音节延长。研究得到以下主要结论:(1)小句边界处无声段和高音点重置是语篇修辞层级结构的主要声学线索。小句边界在语篇层级结构中的位置越高,边界处无声段越长,边界处高音点重置的值越大。但是语篇结构中小句边界处的无声段延长和高音点重置增大也是有限度的。(2)小句边界处低音点重置和边界前音节延长都不是区分语篇修辞层级结构的有效线索。
This article examines the rhythmic expression of the rhetorical hierarchical structure of the discourse. The rhetorical structure of the corpus composed of 20 discourse labels and acoustic analysis. Acoustic parameters mainly use small sentence boundary silence, pitch reset and boundary syllable extension. The main conclusions of this study are as follows: (1) The silence and the replacement of the treble points at the boundary of the clause are the main acoustic clues of the rhetorical hierarchy of discourse. The higher the location of the sentence boundary in the discourse hierarchy, the longer the silent segment at the boundary and the greater the value of the resetting of the treble point at the boundary. However, there is a limit to the silence extension and the reset of the treble point at the small sentence boundary in discourse structure. (2) It is not an effective clue to distinguish the hierarchical structure of discourse rhetoric from the replacement of the bass point and the extension of the syllabary before the boundary of the sentence.