Hanyang Institute for Phonetics and Cognitive Sciences of Language, Hanyang University, Seoul 04763, South Korea.
Department of Linguistics, University of California, Santa Barbara, Santa Barbara, California 93106, USA.
J Acoust Soc Am. 2024 May 1;155(5):3521-3536. doi: 10.1121/10.0026081.
This electromagnetic articulography study explores the kinematic profile of Intonational Phrase boundaries in Seoul Korean. Recent findings suggest that the scope of phrase-final lengthening is conditioned by word- and/or phrase-level prominence. However, evidence comes mainly from head-prominence languages, which conflate positions of word prosody with positions of phrasal prominence. Here, we examine phrase-final lengthening in Seoul Korean, an edge-prominence language with no word prosody, with respect to focus location as an index of phrase-level prominence and Accentual Phrase (AP) length as an index of word demarcation. Results show that phrase-final lengthening extends over the phrase-final syllable. The effect is greater the further away that focus occurs. It also interacts with the domains of AP and prosodic word: lengthening is greater in smaller APs, whereas shortening is observed in the initial gesture of the phrase-final word. Additional analyses of kinematic displacement and peak velocity revealed that Korean phrase-final gestures bear the kinematic profile of IP boundaries concurrently to what is typically considered prominence marking. Based on these results, a gestural coordination account is proposed, in which boundary-related events interact systematically with phrase-level prominence as well as lower prosodic levels, and how this proposal relates to the findings in head-prominence languages is discussed.
本项电磁发音研究旨在探究韩国首尔地区语调短语边界的运动学特征。最近的研究结果表明，短语末尾拉长的范围受到词级和/或词组级重音的制约。然而，这些证据主要来自于中心重音语言，这些语言将词韵律位置与词组重音位置混为一谈。在这里，我们考察了无词韵律的边缘重音语言——首尔韩语的短语末尾拉长现象，将焦点位置作为词组级重音的指标，重读音节长度作为词分界的指标。结果表明，短语末尾拉长延伸到短语末尾的音节。焦点位置越远，拉长效果越明显。它还与重读音节和韵律词的范围相互作用：AP 越小，拉长效果越大，而在短语末尾词的初始音中则观察到缩短现象。对运动学位移和峰值速度的进一步分析表明，韩语短语末尾的音段具有 IP 边界的运动学特征，这与通常被认为是重音标记的特征同时出现。基于这些结果，我们提出了一种手势协调的解释，其中与边界相关的事件与词组级重音以及更低的韵律层次系统地相互作用，并且讨论了这一建议与中心重音语言的发现有何关系。
