Letter: Interaction between two factors that influence vowel duration.
Letter: Interaction between two factors that influence vowel duration.
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字母：影响元音持续时间的两个因素之间的相互作用。
DOI：
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发表时间：
1973
影响因子：
2.4
通讯作者：
D. Klatt
中科院分区：
文献类型：
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作者：
D. Klatt
众所周知，重读元音在清辅音之前比在浊辅音之前短，并且重读元音在双音节单词中的非重读音节之前比在单音节单词中短。设计了一组测试材料来研究这两个规则之间的相互作用。结果表明，超过一定缩短量后，元音变得非常不可压缩，并且元音持续时间修改规则应具有 Do = k (Di − Dmin)+Dmin 的形式，其中 Di 是规则的输入持续时间，Do 是规则的输出持续时间，Dmin 是元音的最小持续时间，比例因子 k 大于零并且取决于特定规则。数据表明 Dmin 约为给定元音固有持续时间的 45%。
It is well known that stressed vowels are shorter before voiceless consonants than before voiced, and that stressed vowels are shorter before an unstressed syllable in a bisyllabic word than in a monsyllabic word. A set of test materials was designed to study the interaction between these two rules. Results suggest that vowels become strongly incompressible beyond a certain amount of shortening and that vowel duration modification rules should have the form Do = k (Di − Dmin)+Dmin, where Di is the input duration to the rule, Do is the output duration of the rule, Dmin is the minimum duration for the vowel, and the scale factor k is greater than zero and depends on the particular rule. The data indicate that Dmin is about 45% of the inherent duration of a given vowel.