Acoustic and intelligibility characteristics of sentence production in neurogenic speech disorders.
Acoustic and intelligibility characteristics of sentence production in neurogenic speech disorders.
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神经源性言语障碍中句子产生的声学和清晰度特征。
DOI：
10.1121/1.420474
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
J. F. Kent
中科院分区：
文献类型：
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作者：
G. Weismer;J. Jeng;J. Laures;Raymond D. Kent;J. F. Kent
本研究的目的是探讨构音障碍患者的分级语音清晰度和选定的声学变量之间的关系。控制扬声器和扬声器与肌萎缩侧索硬化症（ALS）和帕金森病（PD）产生的句子进行了声学和感知分析。声学变量包括总的话语持续时间，段持续时间，声学元音空间的估计，和共振峰转换的斜率;感知变量包括缩放的语音清晰度和语音参与的严重程度。结果表明，时间变量通常区分ALS组，但不是PD组，从控制，元音空间较小的神经性组相比，控制，但只有显着的ALS扬声器。这些声学措施缩放语音清晰度的关系被证明是复杂的，和复合结果进行了讨论，在句子与单字清晰度估计和它们的基本声学基础。
The purpose of this study was to examine the relationship between scaled speech intelligibility and selected acoustic variables in persons with dysarthria. Control speakers and speakers with amyotrophic lateral sclerosis (ALS) and Parkinson's disease (PD) produced sentences which were analyzed acoustically and perceptually. The acoustic variables included total utterance durations, segment durations, estimates of the acoustic vowel space, and slopes of formant transitions; the perceptual variables included scaled speech intelligibility and severity of speech involvement. Results indicated that the temporal variables typically differentiated the ALS group, but not the PD group, from the controls, and that vowel spaces were smaller for both neurogenic groups as compared to controls, but only significantly so for the ALS speakers. The relation of these acoustic measures to scaled speech intelligibility is shown to be complex, and the composite results are discussed in terms of sentence vs. single-word intelligibility estimates and their underlying acoustic bases.