藏语韵律词和韵律短语的时长特征研究

Study on the Duration Characteristics of Tibetan Prosodic Words and Phrases

在藏语单句的层面上,通过时长参数的统计分析,对韵律词和韵律短语两层韵律单元的时长特征进行了研究.研究结果确定了藏语韵律词和韵律短语的基本大小,韵律词为4±2个音节,韵律短语为6±3个音节;藏语韵律单元的总体时长分布差异较大,但不同韵律单元的时长伸缩幅度差异较小.藏语韵律单元的时长分布类型以尾长型为主;韵律单元边界处普遍具有边界前音节延长,边界后音节缩短现象的特征.

The duration characteristics of prosodic words and prosodic phrases were studied on the bases of Tibetan simple sentences. The research separately determined the size of the prosodic words （4± 2 syllables） and prosodic phrases （6± 3 syllables）. There were remarkable differences in general duration distribution of Tibetan rhythm units, but few differences in length of flexibility in different rhythm units. The distribution of Tibetan rhythm unit takes long - end style as main. It shows a feature at the rhythmic unit boundary which the pre - syllable extends while the post - syllable shortens.