混响房间中语音清晰度的增强：幅度包络和时间精细结构的作用。
Enhancement of speech intelligibility in reverberant rooms: role of amplitude envelope and temporal fine structure.
作者信息
Srinivasan Nirmal Kumar, Zahorik Pavel
机构信息
Department of Psychological and Brain Sciences, University of Louisville, Louisville, Kentucky 40292
出版信息
J Acoust Soc Am. 2014 Jun;135(6):EL239-45. doi: 10.1121/1.4874136.
Abstract
The temporal envelope and fine structure of speech make distinct contributions to the perception of speech in normal-hearing listeners, and are differentially affected by room reverberation. Previous work has demonstrated enhanced speech intelligibility in reverberant rooms when prior exposure to the room was provided. Here, the relative contributions of envelope and fine structure cues to this intelligibility enhancement were tested using an open-set speech corpus and virtual auditory space techniques to independently manipulate the speech cues within a simulated room. Intelligibility enhancement was observed only when the envelope was reverberant, indicating that the enhancement is envelope-based.
摘要
言语的时间包络和精细结构对听力正常的听众的言语感知有不同的贡献，并且受到房间混响的不同影响。先前的研究表明，当事先让听众接触某个房间时，在有混响的房间里言语可懂度会提高。在此，使用一个开放集言语语料库和虚拟听觉空间技术，在模拟房间内独立操纵言语线索，测试了包络和精细结构线索对这种可懂度提高的相对贡献。仅当包络有混响时才观察到可懂度提高，这表明这种提高是基于包络的。
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