Turning points, tonal targets, and the English L- phrase accent
Turning points, tonal targets, and the English L- phrase accent
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转折点、声调目标和英语 L 短语重音
DOI：
10.1080/01690961003599954
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
S. Shattuck
中科院分区：
文献类型：
--
作者：
J. Barnes;N. Veilleux;A. Brugos;S. Shattuck
这项对L在美式英语的H*L-H%等高线上的排列的研究发现，对缩回短语位置的预测最强的是重音“肘”是与重音相关的F0峰的位置，而不是所研究的一组韵律“吸引子”中的一个。峰值高度和肘部锐度之间的强烈相关性表明，肘部可能来自峰值高度和基于知觉的限制对核后去重音节实施的相互作用：F0必须在核后重读音节之后立即变低，以防止在随后的重读音节上感知到基音重音。曲线下相对面积(R-AuC)是一种表征F0轮廓的全球测量方法，它比基于转折点的方法更可靠地区分H*L和对比轮廓(例如，H*L*)，该方法专注于F0弯头的位置/比例。R-AUC测量对轮廓形状的显著但难以量化的变化很敏感，同时避免了纯粹基于形状的理论的陷阱。
This study of the alignment of L- in the H* L- H% contour of American English finds the strongest predictor of the location of the retracted phrase-accent “elbow” to be the location of the accent-related F0 peak, rather than one of a set of metrical “attractors” investigated. A strong correlation between peak height and elbow sharpness suggests that the elbow may arise from interaction between peak height and perception-based constraints on the implementation of postnuclear deaccenting: F0 must become low immediately after the Nuclear-Pitch-Accented syllable, to prevent the percept of a pitch accent on a following accentable syllable. Relativised Area Under the Curve (R-AUC), a global measure for characterising F0 contours, distinguishes this H* L- from contrasting contours (e.g., H* L*) more reliably than a turning point-based approach focused on the location/scaling of an F0 elbow. The R-AUC measure is sensitive to perceptually significant, but difficult-to-quantify, changes in contour shape, while avoiding the pitfalls of purely shape-based theories.