儿童和成人耳朵的反射功能,反射率和区域功能测量
Douglas H Keefe1, Denis F Fitzpatrick1, Heather L Porter1
1Boys Town National Research Hospital, 555 North 30th Street, Omaha, Nebraska 68131, USA.
The Journal of the Acoustical Society of America
|October 21, 2024
概括
声学反射功能的测量显示了人类耳道的显著差异.
科学领域:
- 听觉科学是一种听觉科学.
- 声学 声学 在声学方面
- 人类生理学 人类生理学
背景情况:
- 人耳道的声学特性对听力至关重要.
- 以前的研究集中在频率域分析上,时间域研究有限.
研究的目的:
- 用时间域方法测量儿童和成人耳道的声学反射功能 (RF).
- 分析耳道声学和声音传输的年龄相关差异.
主要方法:
- 使用耳道探测器对声反射函数 (RF) 的时间域测量.
- 计算耳道区域功能,声学反射率和声压水平差异.
- 按年龄,性别和耳朵分别分析群体反应 (区域功能,长度,吸收率,群体延迟,入学率).
主要成果:
- 在儿童和成人 (0.25-4 kHz) 之间发现了区域功能,吸收,群体延迟和入院的显著差异.
- 小组延迟在年轻人和老年人之间有所不同.
- 耳朵和性别不是观察到的声学反应的重要因素.
结论:
- 时间域RF测量对于了解与年龄相关的耳道声音传输差异是有价值的.
- 与成年人相比,儿童表现出不同的耳道声学特性,影响中耳功能频率.
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