The Smooth Signal Redundancy Hypothesis: A functional explanation for relationships between redundancy, prosodic prominence, and duration on spontaneous speech
The Smooth Signal Redundancy Hypothesis: A functional explanation for relationships between redundancy, prosodic prominence, and duration on spontaneous speech
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DOI：
10.1177/00238309040470010201
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发表时间：
2004-01-01
影响因子：
1.8
通讯作者：
Turk, A
中科院分区：
文献类型：
--
作者：
Aylett, M;Turk, A
本文探讨了影响自发言语时长变化的两个相关因素：韵律结构和冗余。我们认为，生产强大的通信，同时有效地消耗发音努力的约束导致语言冗余和持续时间之间的反比关系。相反的关系，提高了通信的鲁棒性，通过传播信息更均匀地跨越语音信号，产生更平滑的信号冗余profile.We认为，韵律突出是一种语言手段，实现平滑信号冗余。韵律突出增加音节持续时间，并在很大程度上与语音的不可预测部分相吻合，从而导致更平滑的信号冗余。在一个大型的自发语音语料库中，在冗余度、音节持续时间和韵律结构之间进行线性回归的结果证实：（1）语言冗余度与时长成反比关系，以及（2）韵律突出和持续时间之间有很强的关系。事实上，语言冗余和韵律突出预测的大部分方差是nonunique表明，在英语中，韵律突出结构是由一个强大的信号要求所造成的约束在自发语音中表达的手段。
This paper explores two related factors which influence variation in duration, prosodic structure and redundancy in spontaneous speech. We argue that the constraint of producing robust communication while efficiently expending articulatory effort leads to an inverse relationship between language redundancy and duration. The inverse relationship improves communication robustness by spreading information more evenly across the speech signal, yielding a smoother signal redundancy profile.We argue that prosodic prominence is a linguistic means of achieving smooth signal redundancy. Prosodic prominence increases syllable duration and coincides to a large extent with unpredictable sections of speech, and thus leads to a smoother signal redundancy.The results of linear regressions carried out between measures of redundancy, syllable duration and prosodic structure in a large corpus of spontaneous speech confirm: (1) an inverse relationship between language redundancy and duration, and (2) a strong relationship between prosodic prominence and duration.The fact that a large proportion of the variance predicted by language redundancy and prosodic prominence is nonunique suggests that, in English, prosodic prominence structure is the means with which constraints caused by a robust signal requirement are expressed in spontaneous speech.