Department of Linguistics, University of Oregon, USA.
Lang Speech. 2024 Mar;67(1):40-71. doi: 10.1177/00238309231156615. Epub 2023 Mar 26.
Previous research has shown that native listeners benefit from clearly produced speech, as well as from predictable semantic context when these enhancements are delivered in native speech. However, it is unclear whether native listeners benefit from acoustic and semantic enhancements differently when listening to other varieties of speech, including non-native speech. The current study examines to what extent native English listeners benefit from acoustic and semantic cues present in native and non-native English speech. Native English listeners transcribed sentence final words that were of different levels of semantic predictability, produced in plain- or clear-speaking styles by Native English talkers and by native Mandarin talkers of higher- and lower-proficiency in English. The perception results demonstrated that listeners benefited from semantic cues in higher- and lower-proficiency talkers' speech (i.e., transcribed speech more accurately), but not from acoustic cues, even though higher-proficiency talkers did make substantial acoustic enhancements from plain to clear speech. The current results suggest that native listeners benefit more robustly from semantic cues than from acoustic cues when those cues are embedded in non-native speech.
先前的研究表明，母语为英语的听众不仅受益于清晰的发音，还受益于在母语演讲中提供的可预测语义语境。然而，目前尚不清楚母语听众在聆听其他语言（包括非母语演讲）时，对声学和语义增强的反应是否存在差异。本研究考察了母语为英语的听众在聆听英语母语和非母语演讲时，对声学和语义提示的反应程度。母语为英语的听众转录了具有不同语义可预测性水平的句末单词，这些单词由英语母语说话者和英语熟练程度较高和较低的普通话母语说话者以普通或清晰的说话方式说出。感知结果表明，听众受益于熟练程度较高和较低说话者的演讲中的语义提示（即更准确地转录了演讲），但不受声学提示的影响，尽管熟练程度较高的说话者确实从普通演讲到清晰演讲有了实质性的声学增强。目前的结果表明，当这些提示嵌入非母语演讲中时，母语听众从语义提示中受益更为显著，而不是从声学提示中受益。
