2 0 0 0 OA 水中聴覚における外耳道の空気泡の影響について
- 著者
- 倉本 和興 老松 建成 桑原 信也 山口 静馬
- 出版者
- 特定非営利活動法人 海洋音響学会
- 雑誌
- 海洋音響学会誌 (ISSN:09165835)
- 巻号頁・発行日
- vol.31, no.2, pp.81-85, 2004-04-01 (Released:2011-03-02)
- 参考文献数
- 9
In order to examine the effects of air bubble in the ear canal for underwater hearing, detailed measurement of minimum audible field (MAF) in audio frequency (50Hz-8kHz) and comparison of loudness were carried out at two conditions as below, 1) the air bubble remains in the ear canal and 2) the ear canal is filled with water. As the result, in the high frequency region over about 300 Hz, it is highly sensitive to hearing in the case that the air bubble remained in the ear canal. In the low frequency region under 300 Hz, it becomes more sensitive in the case that the ear canal was filled with the water by removing the air bubble.The reverse phenomenon of “hearing” at about 300 Hz is explained by difference between frequency characteristics of the occlusion effect (air conduction) and the effect in which the ear canal was filled with the water (bone conduction).
1 0 0 0 OA 水中伝搬音に対する障壁の回折減衰特性
- 著者
- 山口 静馬 倉本 和興 桑原 信也 老松 建成
- 出版者
- 特定非営利活動法人 海洋音響学会
- 雑誌
- 海洋音響学会誌 (ISSN:09165835)
- 巻号頁・発行日
- vol.18, no.4, pp.209-212, 1991 (Released:2011-03-02)
- 参考文献数
- 9