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Fundamental Research for Auditory Feedback in Clearness of Speech Production in Hearing Impaired Persons.

听力障碍者言语清晰度的听觉反馈的基础研究。

基本信息

批准号：
08610098
负责人：
ANDO Takaharu
金额：
$ 0.64万
依托单位：
Tsukuba College of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1998
项目状态：
已结题

项目摘要

First, we studied the relations among articulation scores in speech perception, articulation scores in speech production, and hearing levels of children with hearing impairments. The results were as follows : (1) The relation of articulation scores in speech perception to those in speech production was high. This suggests the importance of auditory feedback for articulateness of speech production. (2) On the whole, scores of both speech perception and speech production became reduced in as average hearing level increased. But in the case of some children with hearing impairments whose average hearing levels were between about 90 and 110 dB, correlation was not found between each articulation and the average hearing levels.Second, we studied articulation scores in production of 100 Japanese monosyllables, articulation scores in perception of vowel uttered by normally hearing children, articulation scores in production of vowel, articulation scores in perception of vowel uttered by thems … More elves and relations among these four scores in 75 hearing impaired children. Results and conclusions were as follows. l)Confusion of vowel perception and production shows certain tendencies. 2)Hearing impaired children with high ability of speech perception have the acoustic-phonetic boundaries nearly equal to normally hearing children's. 3)It requires ability to use auditory feedback effectively to improve clearness of speech production.Third, we compaired VOT(Voice Onset Time)s with estimations by hearing about stop consonants uttered by hearing impaired children whose average hearing levels were over or equal to 90dB.The results were as follows : 1)Of some pairs of voiced and voiceless stop consonants, both seem to be uttered with defferent manner by the hearing impaired child, in spite of being estimated as the same consonant by hearing. 2)In some syllables, degree of the difference in VOT seems to reflect well the rate of being estimated as voiceless by hearing. 3)There are some voiceless stop consnants of whitch VOT is evidently longer than that of voiced ones in spite of being estimated as the same consonant by most nomal-hearing estimaters. On the other hand, there are some pairs of voiceless and voiced stop consonants that are estimated as the same consonant by all of nomal-hearing estimaters and of whitch VOTs are nearly equal. Less

首先，我们研究了听力障碍儿童的言语感知清晰度分数、言语产生清晰度分数和听力水平之间的关系。结果表明：（1）言语感知清晰度得分与言语产生清晰度得分相关性较高。这表明听觉反馈对言语产生的清晰度的重要性。(2)总体上，随着平均听力水平的提高，言语感知和言语产生的得分均降低。第二，我们研究了100个日语单音节词的发音分数、听力正常儿童的元音发音分数、发音清晰度得分在感知元音发出的主题 ...更多信息对75名听障儿童进行了问卷调查，并分析了这四项评分之间的关系。结果和结论如下。（1）元音的感知和产生的混淆表现出一定的倾向。2)具有较高言语感知能力的听障儿童，其声学语音边界与听力正常儿童基本相同。（3）有效利用听觉反馈的能力是提高语音清晰度的前提。本文对平均听力水平≥ 90dB的听障儿童的塞音起始时间（Voice Onset Time，Voice Onset Time）进行了测定，结果如下：（1）在某些浊塞音和清塞音中，尽管听觉上被认为是同一个辅音，但听障儿童似乎以不同的方式发出这两个辅音。2）在某些音节中，VOT的差异程度似乎能很好地反映出被听觉判断为无差异的比率。3)在绝大多数听力正常的人都认为VOT是同一个辅音的情况下，VOT却明显长于浊辅音。另一方面，存在一些由所有正常听力估计器估计为相同辅音且其VOT几乎相等的无声塞音和浊塞音对。少