一种数字助听器多通道响度补偿方法

王青云; 赵力; 赵立业; 邹采荣

doi:10.3724/SP.J.1146.2007.01449

一种数字助听器多通道响度补偿方法

doi: 10.3724/SP.J.1146.2007.01449

王青云^{①③;赵力},
赵力,
赵立业,
邹采荣

基金项目:

国家自然科学基金(60872073)和江苏省自然科学基金(BK2008291)资助课题

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出版历程
- 收稿日期: 2007-09-11
- 修回日期: 2009-01-20
- 刊出日期: 2009-04-19

A Multichannel Loudness Compensation Method for Digital Hearing Aids

摘要

摘要: 该文提出了一种数字助听器非等宽多通道响度补偿方法。该方法研究了完美重构滤波器组分析与综合滤波器的设计方法，并根据人耳对频率的灵敏度特征及对声强的感知特性实现了符合人耳听觉特征的非等宽多通道响度补偿方案。针对典型老年性耳聋患者的实验与仿真结果表明，算法有效补偿了患者缺失的语音高频能量，显著提高了患者的言语辨识率，降低了患者的言语察觉阈。
- 语音信号处理;响度补偿;完美重构子带滤波器组;人耳听觉特征
Abstract: A new multichannel loudness compensation method is proposed in this paper. According to the method, analysis and reconstruction sub-band filters for near perfect reconstruction oversampled filter bank are designed, then nonuniform multichannel loudness compensation based on human auditory, the sensitive feature of frequency and sound pressure level is implemented. Simulations and experiments for the typical senile patient demonstrate that the loss energy of the high frequency sound is well compensated, the intelligibility of patient is improved, and the speech detection threshold is decreased notably.

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参考文献(1)

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