Enhancing Speech Intelligibility: Interactions Among Context, Modality, Speech Style, and Masker
Enhancing Speech Intelligibility: Interactions Among Context, Modality, Speech Style, and Masker
复制标题
DOI：
10.1044/jslhr-h-13-0076
复制
发表时间：
2014-10-01
影响因子：
2.6
通讯作者：
Chandrasekaran, Bharath
中科院分区：
文献类型：
--
作者：
Van Engen, Kristin J.;Phelps, Jasmine E. B.;Chandrasekaran, Bharath
目的：作者试图研究提高可懂度的言语线索之间的相互作用（即，方法：对29名听力正常的受试者进行噪声环境下的句子识别测试。测试包括语义正常和异常的句子，会话和清晰的说话风格，仅限语音（AO）和视听（AV）的呈现方式，和4种不同的掩蔽（2-talker牙牙学语，4-talker牙学语，8-talker牙学语，和语音形状的噪音）。语义上下文是有益的，在所有掩蔽声在AV条件下，但只有在语音形状的噪音在AO条件。清晰的语音提供了最有益的AV语音与语义异常的目标。最后，听众能够更好地利用视觉信息的意义与异常的句子和清晰与conversational speech.Conclusion：由于可理解性增强线索相互影响，并依赖于掩蔽条件，多个掩蔽和增强线索，应使用准确评估个人的语音噪声感知。
Purpose: The authors sought to investigate interactions among intelligibility-enhancing speech cues (i.e., semantic context, clearly produced speech, and visual information) across a range of masking conditions.Method: Sentence recognition in noise was assessed for 29 normal-hearing listeners. Testing included semantically normal and anomalous sentences, conversational and clear speaking styles, auditory-only (AO) and audiovisual (AV) presentation modalities, and 4 different maskers (2-talker babble, 4-talker babble, 8-talker babble, and speech-shaped noise).Results: Semantic context, clear speech, and visual input all improved intelligibility but also interacted with one another and with masking condition. Semantic context was beneficial across all maskers in AV conditions but only in speech-shaped noise in AO conditions. Clear speech provided the most benefit for AV speech with semantically anomalous targets. Finally, listeners were better able to take advantage of visual information for meaningful versus anomalous sentences and for clear versus conversational speech.Conclusion: Because intelligibility-enhancing cues influence each other and depend on masking condition, multiple maskers and enhancement cues should be used to accurately assess individuals' speech-in-noise perception.