Time-frequency analysis of transiently evoked otoacoustic emissions of subjects exposed to noise
Time-frequency analysis of transiently evoked otoacoustic emissions of subjects exposed to noise
复制标题
DOI：
10.1016/j.heares.2005.03.024
复制
发表时间：
2005-07-01
期刊：
影响因子：
2.8
通讯作者：
Konopka, W
中科院分区：
文献类型：
--
作者：
Jedrzejczak, WW;Blinowska, KJ;Konopka, W
本文对两组受试者共124耳进行了瞬态诱发耳声发射（TEOAE）的检测，其中健康人62耳，喷气发动机噪声作业工人62耳。使用基于匹配追踪（MP）算法的自适应近似方法对记录进行分析。该方法允许根据信号分量的幅度、频率、延迟和时间跨度（或持续时间）来描述信号分量。这项工作的目的是确定这些参数的可重复性和有用性，在研究听力损伤的人群暴露于潜在的有害噪音。当振幅被用作鉴别参数时，两个数据集在所有研究的频带中实现了良好的区分。在2000 Hz开始的频带中，潜伏期也受到影响，而与波形持续时间相关的时间跨度参数受噪声影响较小。(c)2005 Elsevier B.V.保留所有权利。
Transiently evoked otoacoustic emissions (TEOAE) were measured from 124 ears from two subject groups: healthy subjects (62 ears), and workers (62 ears) exposed to noise of jet engines. The recordings were analyzed using the method of adaptive approximations based on a matching pursuit (MP) algorithm. The method allows for description of the signal components in terms of their amplitude, frequency, latency, and time-span (or duration). The purpose of this work was to determine the repeatability and usefulness of these parameters in studies of hearing impairment of populations exposed to potentially harmful noise. Good distinction between the two datasets was achieved in all investigated frequency bands when amplitude was used as a discrimination parameter. Also latency was affected in frequency bands starting at 2000 Hz, while the time-span parameter associated with the duration of the waveform was less influenced by noise. (c) 2005 Elsevier B.V. All rights reserved.