基于多重判定的纯音听阈测定方法

发布时间：2018-03-19 10:27

本文选题：听觉感知　切入点：纯音听阈　出处：《清华大学学报(自然科学版)》2017年03期 　论文类型：期刊论文

【摘要】：听觉感知特性在听力评估中占有重要地位。该文面向嵌入式平台,基于人耳听觉特性,提出振幅到声压级的声学参数转换模型,实现标准纯音测试信号的自动生成;设计基于人耳听觉感知的测试音强度调整规则,提出基于多重判定的听阈值高信度确定方法和基于噪声掩蔽效应的听阈值修订算法;设计并实现面向嵌入式平台的纯音听阈测定方法和系统,实验对比了听力正常者的纯音听力曲线和标准听力范围。结果表明:该系统可方便快捷地及时检查听力变化,且具有较好的信度,也可用于听力筛查和疗效的评估。
[Abstract]:Auditory perception plays an important role in hearing assessment. This paper presents an acoustic parameter conversion model from amplitude to sound pressure level based on the embedded platform and realizes the automatic generation of standard pure tone test signal. This paper designs the intensity adjustment rules based on human auditory perception, and proposes a new method to determine the high confidence of hearing threshold based on multiple decision and an algorithm to revise the threshold based on noise masking effect. The method and system of pure tone hearing threshold measurement for embedded platform are designed and implemented. The pure tone hearing curve and standard hearing range of normal hearing are compared. The results show that the system can quickly and conveniently check the hearing changes. It has good reliability and can also be used for hearing screening and evaluation of curative effect.
【作者单位】：清华大学计算机科学与技术系人机语音交互实验室;
【基金】：国家自然科学基金面上项目(613700087);国家自然科学基金青年科学基金资助项目(61003094)
【分类号】：R764.04

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