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ID 14464
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A consideration about the influences on daily human life by environmental sound sources
著者
岩重 博文
キーワード
音環境
快適性
騒音暴露
Sound environment
Comfortableness
Noise exposure
NDC
家政学・生活科学
抄録(英)
A consideration on evaluation of sound environment of daily human life is made by the 24 hours noise exposure measurements and questionnaire investigations, in this paper. The 25 subjects (healthy adults, 9 men and 16 women) are chosen to make these measurements and investigations. From 24 hours measurements, the maximum noise levels are 100~110(dBA) during a whole day. Most of the next considerations are made by Leq ( Equivalent noise level ) value. This is a typical example of Leq for movement during life : the Leq of office work is 65~70(dBA), the Leq of lunch time is 75(dBA), the Leq of rest time is 45(dBA), the Leq of sleeping is under 30(dBA). All subject are classified by 3 groups. The 24 hours Leq for the first group is 60~75(dBA), the 24 hours Leq for the second group is 70~80(dBA), and the Leq for the third group is about 90(dBA). The sound environment of more than 80(dBA) Leq is very bad for our life. The evaluation of sound comfortableness becomes bad when noise level grows big, in most cases. The comfortableness of conversation and lunch time is not evaluated only by sound level but also the happiness of the behavior. During study time, most people want silence to concentrate, so 50(dBA) is not sufficiently small level. The evaluation of sound environment of TV watching time is very good, because most watcher control the TV sound by himself. The evaluation of comfortableness for walking is not only depended on the sound, but other environmental factors like landscape, fresh air, temperature and humidity also should be taken into consideration. The sound evaluation is not decided only by the measured sound level, every life behavior has a suitable sound conditions. These results give us a guideline of comfortable sound environment of daily life.
掲載誌名
広島大学大学院教育学研究科紀要. 第二部, 文化教育開発関連領域
54号
開始ページ
347
終了ページ
353
出版年月日
2006-03-28
出版者
広島大学大学院教育学研究科
ISSN
1346-5554
NCID
SelfDOI
言語
日本語
NII資源タイプ
紀要論文
広大資料タイプ
学内刊行物(紀要等)
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
部局名
教育学研究科
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