著者

吉田 雅文 相良 哲哉 長野 美貴 是永 克実 牧嶋 和見

出版者

The Oto-Rhino-Laryngological Society of Japan, Inc.

雑誌

日本耳鼻咽喉科学会会報 (ISSN:00306622)

巻号頁・発行日

vol.95, no.2, pp.195-200, 1992-02-20 (Released:2008-03-19)

参考文献数

7

被引用文献数

1

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The discrimination of mono-syllable words (67S word-list) pronounced by a male and a female speaker was investigated in noise in 39 normal hearing subjects. The subjects listened to the test words at a constant level of 62 dB together with white or weighted noise in four S/N conditions. By processing the data with logit transformation, S/N-discrimination curves were presumed for each combination of a speech material and a noise. Regardless of the type of noise, the discrimination scores for the female voice started to decrease gradually at a S/N ratio of +10dB, and reached 10 to 20% at-10dB. For the male voice in white noise, the discrimination curve was similar to those for the female voice. On the contrary, the discrimination score for the male voice in weighted noise declined rapidly from a S/N ratio of +5dB, and went below 10% at -5dB. The discrimination curves seem to be shaped by the interrelations between the spectrum of the speech material and that of the noise.

著者

八木 昌人 川端 五十鈴 佐藤 恒正 鳥山 稔 山下 公一 牧嶋 和見 村井 和夫 原田 勇彦 岡本 牧人

出版者

The Oto-Rhino-Laryngological Society of Japan, Inc.

雑誌

日本耳鼻咽喉科學會會報 (ISSN:00306622)

巻号頁・発行日

vol.99, no.6, pp.869-874, 1996-06-20

参考文献数

6

被引用文献数

18 5

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厚生省の高齢者の聴力に関する研究班は65歳以上の高齢者の聴力を調査した. 測定7周波数の平均聴力レベルはA群 (65~69歳) で35.0dB, B群 (70~74歳) で42.1dB, C群 (75~79歳) で46. 1dB, D群 (80~84歳) で52. 1dB, E群 (85歳以上) で55.6dBであった. すべてのグループにおいて聴力の男女差はみられず, オージオグラムの型は大部分の例で高音漸傾型を示した. 平均語音弁別能はA群で75.4%, B群で70%, C群で63.8%, D群で59.7%, E群で52.1%, また, SISI検査で70%以上を示した率はA群で45.2%, B群で49.3%, C群で47.9%, D群で51.6%, E群で59.7%であった.