2005 Fiscal Year Final Research Report Summary
Research on influence of background noise on speech perception in elderly people
| Project/Area Number |
16500353
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Rehabilitation science/Welfare engineering
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| Research Institution | Chiba Institute of Technology |
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Principal Investigator |
SEKI Hideaki Chiba Institute of Technology, Faculty of Information and Computer Science, Associate professor, 情報科学部, 助教授 (60226636)
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| Project Period (FY) |
2004 – 2005
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| Keywords | elderly people / speech perception / background noise / mental lexicon / word familiarity |
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| Research Abstract |
In this report, in order to investigate the characteristic of speech perception under elderly people's noise environment, five kinds of auditory perceptual experiments were investigated to an adult in his twenties and the elderly people of 60 years or more.
Five kinds of auditory perceptual experiments are as follows :
1)The experiment to investigate the relations between a noise characteristic and speech perception.
2)The experiment to investigate the relations between a background noise level and speech perception.
3)The experiment to investigate the relations between word familiarity used in message sentences and the speech perception.
4)The experiment to investigate the relation between context effect and speech perception.
5)The experiment to investigate the influence of visual stimulation on speech perception.
The results of the auditory perceptual experiments are as follows :
1)In order to communicate voice information certainly to elderly people whom faculty of hearing decreased, noise and a background sound level must reduce about 6dB more than the voice level.
2)In order to communicate voice information certainly to elderly people whom faculty of hearing decreased, it is necessary to use a comprehensible sentences which the contents tend to recollect.
3)In order to communicate voice information certainly to elderly people whom faculty of hearing decreased, it is effective to use the visual information with voice information.
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[Book] 音声研究入門2005
Author(s)
今石元久編, 世木秀明分担
Total Pages
155
Publisher
有限会社 和泉書院
Description
「研究成果報告書概要(和文)」より
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