期刊
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
卷 134, 期 4, 页码 2852-2865出版社
ACOUSTICAL SOC AMER AMER INST PHYSICS
DOI: 10.1121/1.4818745
关键词
-
资金
- NIDCD
The transfer function H-V between stapes velocity V-S and sound pressure near the tympanic membrane P-TM is a descriptor of sound transmission through the middle ear (ME). The ME power transmission efficiency (MEE), the ratio of sound power entering the cochlea to power entering the middle ear, was computed from H-V measured in seven chinchilla ears and previously reported measurements of ME input admittance Y-TM and ME pressure gain G(MEP) [Ravicz and Rosowski, J. Acoust. Soc. Am. 132, 2437-2454 (2012); J. Acoust. Soc. Am. 133, 2208-2223 (2013)] in the same ears. The ME was open, and a pressure sensor was inserted into the cochlear vestibule for most measurements. The cochlear input admittance Y-C computed from H-V and G(MEP) is controlled by a combination of mass and resistance and is consistent with a minimum-phase system up to 27 kHz. The real part Re{Y-C}, which relates cochlear sound power to inner-ear sound pressure, decreased gradually with frequency up to 25 kHz and more rapidly above that. MEE was about 0.5 between 0.1 and 8 kHz, higher than previous estimates in this species, and decreased sharply at higher frequencies. (C) 2013 Acoustical Society of America.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据