Aerodynamic characteristics of trills and phonological patterning
Aerodynamic characteristics of trills and phonological patterning
复制标题
颤音的空气动力学特征和音系模式
DOI：
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
M. Solé
中科院分区：
文献类型：
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作者：
M. Solé
摘要本研究试图描述产生心尖颤音所需的空气动力学条件，并从空气动力学和独特性要求的角度解释颤音模式中的一些普遍趋势。为了确定颤动所需的空气动力学条件，同时记录了两名产生浊音和清音颤音的受试者的口咽压力(Po)和气流。颤动时的背压用不同直径的导管间歇性地放血，从而产生阻抗。结果发现：(1)清音颤音表现出比浊音颤音更高的Po值和更大的流速，从而产生跨越舌收缩的摩擦噪声；(2)从声学数据推断，清音颤音对变化的空气动力条件更健壮，但在听觉上不那么明显；(3)浊音颤音和摩擦颤音的Po和气流条件显示出非常相似的值，但颤音显示的允许变化范围较窄。颤音在不同的空气动力学条件下的行为解释了观察到的音系模式：普遍偏爱浊音，颤音和摩擦音之间的交替，颤音的清音，以及鼻音颤音的缺乏。
Abstract The present study attempts to characterize the aerodynamic conditions required for the production of apical trills and to account for some universal tendencies in the patterning of trills in terms of their aerodynamic and distinctiveness requirements. In order to ascertain the aerodynamic conditions required for trills, oropharyngeal pressure (Po) and airflow were recorded simultaneously in two subjects producing voiced and voiceless trills. The backpressure during trills was intermittently bled with catheters of varying diameter, and thus impedance. It was found that (1) voiceless trills show a higher Po and a larger rate of flow than voiced trills, which generates friction noise across the lingual constriction; (2) voiceless trills are more robust to changing aerodynamic conditions but less distinct auditorily, as inferred from acoustic data; (3) the Po and airflow conditions for voiced trills and fricatives show very similar values, with trills showing a narrower range of allowable variation. The behavior of trills in varying aerodynamic conditions accounts for observed phonological patterns: the universal preference for voiced trills, the alternation between trills and fricatives, trill devoicing, and the lack of nasal trills.
舌尖颤音和声道壁顺应性。
DOI：
10.1121/1.402927
发表时间：
1992
期刊：
The Journal of the Acoustical Society of America
影响因子：
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作者：
McGowan,RS
通讯作者：
McGowan,RS