Minima in cubic distortion-product otoacoustic emission input/output functions due to distributed primary sources.

IF 1.2 Q3 ACOUSTICS
Václav Vencovský, Aleš Vetešník
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引用次数: 0

Abstract

Input/output (I/O) functions of distortion-product otoacoustic emissions (DPOAEs) may contain sudden amplitude minima (notches) although they are measured in animals with a negligible reflection source. We measured DPOAEs in humans and analyzed the data by time-frequency filtering to decompose the nonlinear-distortion and coherent-reflection components of DPOAE. The presented I/O functions of the nonlinear-distortion component contain notches. We suggest that because these notches are present only in the nonlinear-distortion component, they result from destructive interference between distortion-product wavelets coming from the primary generation region. Simulations conducted with a nonlinear cochlear model showed qualitative similarities with the presented experimental results.

分布式原声源导致的立方失真产物声发射输入/输出函数的最小值。
失真产物声发射(DPOAE)的输入/输出(I/O)函数可能包含突然的振幅最小值(缺口),尽管它们是在反射源可忽略不计的动物体内测量的。我们测量了人类的 DPOAE,并通过时频滤波对数据进行了分析,以分解 DPOAE 的非线性失真和相干反射成分。非线性失真分量的输入/输出函数包含缺口。我们认为,由于这些缺口仅存在于非线性失真分量中,因此它们是来自初级生成区域的失真产物小波之间的破坏性干扰所致。使用非线性耳蜗模型进行的模拟显示,实验结果与上述结果有本质上的相似之处。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
1.70
自引率
0.00%
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