WAVE INTERFERENCE IN THE GENERATION OF REFLECTION- AND DISTORTION-SOURCE EMISSIONS

WAVE INTERFERENCE IN THE GENERATION OF REFLECTION- AND DISTORTION-SOURCE EMISSIONS
复制标题

反射源和畸变源发射中的波干扰

DOI:
--
复制
发表时间:
2003
期刊:
影响因子:
--
通讯作者:
C. Shera
C. Shera
中科院分区:
--
文献类型:
--
作者:
C. Shera

文献摘要

参考文献

被引文献

相似文献

虽然哺乳动物耳声发射(OAE)通常被认为是通过非线性机电失真产生的,但是使用频率缩放刺激(例如,纯音或具有固定频率比f2/f1的一对音调)现在被理解为提供了两种根本不同类型的发射的明确证据[11,6]:失真源(或“波固定”)发射,其由行波引起的非线性失真引起,以及反射源(或“位置固定的”)发射,其通过微机械阻抗扰动(例如外毛细胞的数量、几何形状或机械特性的变化)的线性反射而产生[14,20]。虽然失真和反射源的排放往往理想化的起源于孤立的,点状源,这两种类型的OAE产生的空间分布的区域。在本文中,我们将讨论如何分布的性质的排放源,具体地说,干扰之间的许多小波起源于源区域内,基本上有助于特征的反射和失真源的排放。
Although mammalian otoacoustic emissions (OAEs) have generally been regarded as originating through nonlinear electromechanical distortion, measurements of OAE phase made using frequency-scaled stimuli (e.g., a pure tone or a pair of tones with fixed frequency ratio f2/f1) are now understood as providing clear evidence for two fundamentally different types of emission [11,6]: distortion-source (or “wave-fixed”) emissions, which arise by nonlinear distortion induced by the traveling wave, and reflection-source (or “place-fixed”) emissions, which arise via linear reflection off micromechanical impedance perturbations such as variations in the number, geometry, or mechanical characteristics of outer hair cells [14,20]. Although distortionand reflection-source emissions are often idealized as originating from isolated, point-like sources, both types of OAEs arise from a spatially distributed region. In this paper, we discuss how the distributed nature of the emission sources—specifically, interference among the many wavelets originating from within the source region—contributes essentially to the characteristics of reflectionand distortion-source emissions.
DOI: 10.1152/jn.1997.77.5.2385
发表时间: 1997-05-01
影响因子: 2.5
作者:
Robles, L;Ruggero, MA;Rich, NC
通讯作者: Rich, NC
DOI: 10.1121/1.413320
发表时间: 1995-10-01
影响因子: 2.4
作者:
ZWEIG, G;SHERA, CA
通讯作者: SHERA, CA
DOI: 10.1121/1.424364
发表时间: 1998
期刊: The Journal of the Acoustical Society of America
影响因子: --
作者:
Talmadge,CL;Tubis,A;Long,GR;Piskorski,P
通讯作者: Piskorski,P