Estimation of outer-middle ear transmission using DPOAEs and fractional-order modeling of human middle ear
Estimation of outer-middle ear transmission using DPOAEs and fractional-order modeling of human middle ear
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发表时间：
2015
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通讯作者：
M. Naghibolhosseini
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作者：
M. Naghibolhosseini
使用DPOAES和人类中肠分数阶模型估计中肠外传播Maryam Naghibolhosseini顾问：Glenis R.我们的听觉能力主要依赖于声波通过外耳和中耳向内耳传播。因此，外耳和中耳的特性影响声音传输到内耳/从内耳传输。中耳和外耳在声音传输中的作用对于耳声发射（OAE）特别重要，耳声发射是在健康耳蜗中产生的声音信号，并由放置在耳道中的灵敏麦克风记录。耳声发射用于评估耳蜗的健康和功能;然而，它们也受到外耳和中耳特征的影响。为了使用OAE更好地评估耳蜗健康，量化外耳和中耳对声音传输的影响至关重要。报告的研究介绍了一种非侵入性的方法来估计外中耳传输失真产品耳声发射（DPOAEs）。此外，外耳和中耳对声音传输的作用进行了研究，通过开发一个物理/数学模型，其中采用分数阶集总元件，包括生物组织的粘弹性特性。宽带反射率测量的阻抗估计用于模型的参数拟合。该模型进行了验证，比较其估计的外中耳声音传输与DPOAE。的
ESTIMATION OF OUTER-MIDDLE EAR TRANSMISSION USING DPOAES AND FRACTIONAL-ORDER MODELING OF HUMAN MIDDLE EAR by Maryam Naghibolhosseini Advisor: Glenis R. Long Our ability to hear depends primarily on sound waves traveling through the outer and middle ear toward the inner ear. Hence, the characteristics of the outer and middle ear affect sound transmission to/from the inner ear. The role of the middle and outer ear in sound transmission is particularly important for otoacoustic emissions (OAEs), which are sound signals generated in a healthy cochlea, and recorded by a sensitive microphone placed in the ear canal. OAEs are used to evaluate the health and function of the cochlea; however, they are also affected by outer and middle ear characteristics. To better assess cochlear health using OAEs, it is critical to quantify the impact of the outer and middle ear on sound transmission. The reported research introduces a noninvasive approach to estimate outer-middle ear transmission using distortion product otoacoustic emissions (DPOAEs). In addition, the role of the outer and middle ear on sound transmission was investigated by developing a physical/mathematical model, which employed fractional-order lumped elements to include the viscoelastic characteristics of biological tissues. Impedance estimations from wideband reflectance measurements were used for parameter fitting of the model. The model was validated comparing its estimates of the outer-middle ear sound transmission with those given by DPOAEs. The