Clarity in communication: "Clear" speech authenticity and lexical neighborhood density effects in speech production and perception
Clarity in communication: "Clear" speech authenticity and lexical neighborhood density effects in speech production and perception
复制标题
DOI：
10.1121/1.4824120
复制
发表时间：
2013-11-01
影响因子：
2.4
通讯作者：
Zellou, Georgia
中科院分区：
文献类型：
--
作者：
Scarborough, Rebecca;Zellou, Georgia
在真实的或想象的交际困难的背景下产生的言语以超清晰度为特征。语音邻域密度（ND）在产生中的条件相似的模式：具有许多邻居的单词相对于具有较少邻居的单词是超发音的; Hi ND单词也比Lo ND单词表现出更大的协同发音[e.例如，在一个实施例中，斯卡伯勒河（2012年）。“词汇相似性和语音生产：非词的邻居，”Lingua 122（2），164-176。“清晰言语”的协同发音特性在不同研究中变化更大。本研究在五个真实的和模拟清晰的语音环境和两个邻居的条件下，检查了超发音和鼻协同发音，并调查了这些细节对单词感知的后果。尽管真实的听者引导的言语（真实的）与所有的模拟风格都不同，但数据显示了（尝试的）清晰度的连续性。就像最清晰的模拟语境语音（“好像对听力不好的人说话”--HOH）一样，真实的比其他条件下的发音更清晰。然而，真实的具有最大的共发音鼻音，而HOH具有最小。词汇的决定是更快的话从真实的比从HOH，表明语音产生在真实的交际环境（hyperarticulation和增加coarticulation）是感知优于模拟清晰的语音。在生产中用真实的图案化的Hi ND字，以及真实的Hi ND字足够清晰以克服密集邻域缺点。(C)2013年美国声学学会。
Speech produced in the context of real or imagined communicative difficulties is characterized by hyperarticulation. Phonological neighborhood density (ND) conditions similar patterns in production: Words with many neighbors are hyperarticulated relative to words with fewer; Hi ND words also show greater coarticulation than Lo ND words [e. g., Scarborough, R. (2012). "Lexical similarity and speech production: Neighborhoods for nonwords," Lingua 122(2), 164-176]. Coarticulatory properties of "clear speech" are more variable across studies. This study examined hyperarticulation and nasal coarticulation across five real and simulated clear speech contexts and two neighborhood conditions, and investigated consequences of these details for word perception. The data revealed a continuum of (attempted) clarity, though real listener-directed speech (Real) differed from all of the simulated styles. Like the clearest simulated-context speech (spoken "as if to someone hard-of-hearing"-HOH), Real had greater hyperarticulation than other conditions. However, Real had the greatest coarticulatory nasality while HOH had the least. Lexical decisions were faster for words from Real than from HOH, indicating that speech produced in real communicative contexts (with hyperarticulation and increased coarticulation) was perceptually better than simulated clear speech. Hi ND words patterned with Real in production, and Real Hi ND words were clear enough to overcome the dense neighborhood disadvantage. (C) 2013 Acoustical Society of America.