Department of Theoretical and Applied Linguistics, University of Cambridge, Sidgwick Avenue, Cambridgeshire CB3 9DA, United Kingdom.
J Acoust Soc Am. 2013 May;133(5):3039-49. doi: 10.1121/1.4798663.
This paper reports two experiments in which listeners detected prosodic group boundaries in Seoul Korean speech, investigating how pitch and timing cues collaborate or compete with each other. Two types of timing cues, compensatory lengthening and group-final lengthening, were employed. The results show that both pitch and timing have demarcative functions which are exploited by listeners. However, listeners relied more on timing than pitch and this may be because in the experiments the pitch contour variations were limited to a small number of phonological categories, whereas temporal variations were more gradient. In addition, group-final lengthening was a more robust cue to the prosodic boundary than compensatory lengthening, and the integration of pitch and timing cues seems to be context-dependent. The results highlight the significance of local information in the universal grouping process and that the precise nature of the cues affect the way they integrate in perception.
本文报告了两项实验，实验中听众在首尔韩语中检测韵律组边界，研究了音高和时长线索如何相互协作或竞争。使用了两种类型的时长线索，补偿性延长和组末延长。结果表明，音高和时长都具有标记功能，听众会利用这些功能。然而，听众更多地依赖于时长而不是音高，这可能是因为在实验中，音高轮廓的变化仅限于少数语音类别，而时间变化则更为渐变。此外，组末延长比补偿性延长更能作为韵律边界的有力线索，并且音高和时长线索的整合似乎取决于上下文。结果突出了局部信息在普遍分组过程中的重要性，以及线索的精确性质影响它们在感知中的整合方式。
