Articulatory and Perceptual Correlates of Syllable Structure

两个项目将研究说话者是如何将构成言语的大量动作组织成一个极其快速的配器的。具体来说，本研究旨在建立一个音节隶属的语音定义。虽然语言学和言语科学文献提到了音节，但音节到底是什么单位，辅音属于音节的起始或结尾意味着什么还没有确定。在这种模式中，说话者按照控制语速的节拍器的节拍，重复地发出特定结构的音节。节拍器的速率是有系统地变化的，以便采样范围广泛的语音速率。研究计划包括四个实验程序分为两个项目。第一个项目包括两个实验的发音数据库的约2400个音节，由不同的停止元音序列的扬声器谁重复音节的节拍器。这个数据库包括动态测量的位置，口头讲话发音，记录声门开放，记录口腔气压，以及声学记录。第一个实验将确定辅音在起始和结尾之间的发音差异，以及这些差异在面对语速增加时如何演变。在第一个实验中还将获得有关说话者用来改变语速的发音策略的信息，以及这些策略如何应用于不同发音者发出的辅音。第二个实验将获得对同一数据库的感知反应，从而从听者的角度确定发音差异的哪些方面与音节化有关。这两个实验的结合将从发音和感知的角度提供一个基本音节组织的连贯画面。第二个项目将把结果扩展到辅音集群和紧张-放松元音对。这个项目是特别设计来研究如何语言特定的语法限制允许段序列影响发言者的生产模式。该项目形成了将第一个项目的结果推广到受限制较少的语音情况的第一步。

Two projects will examine how it is that speakers organize the very large number of actions which make up speech into an extremely rapid orchestration. Specifically, this research seeks to establish a phonetic definition of syllable affiliation. While the linguistics and speech science literature makes reference to the syllable, exactly what this unit is and what it means for a consonant to belong in the onset or the coda of a syllable has yet to be determined.The data to be examined here is elicited using a controlled rate-scaling paradigm. In this paradigm, speakers produce syllables of specified structure repeatedly in time to a metronome which controls the rate of speech. The rate of the metronome is systematically varied in order to sample a broad range of speech rates.The research plan includes four experimental procedures grouped into two projects. The first project comprises two experiments which work with an articulatory database of approximately 2400 syllables, composed of various stop-vowel sequences produced by speakers who repeated syllables in time to a metronome. This database includes dynamic measurements of the location of oral speech articulators, recordings of the glottal opening, recordings of oral air pressure, as well as acoustic records. The first experiment will determine articulatory differences between consonants in onsets and codas, as well as how these differences evolve in the face of speech rate increases. Also obtained in this first experiment will be information on the articulatory strategies speakers use to change speech rates, and how these strategies apply to consonants made with different articulators. The second experiment will acquire perceptual responses to the same database, thus determining which aspects of the articulatory differences are relevant to syllabification from the listener's perspective. The two experiments combined will provide a coherent picture of basic syllabic organization from both articulatory and perceptual perspectives.The second project will extend the results to consonant clusters and to tense-lax vowel pairs. This project is particularly designed to examine how language-particular grammatical constraints on allowable segment sequences affect speakers' production patterns. This project forms the first step at generalizing the results of the first project to less constrained speech situations.