A Comprehensive Method to Improve Loudness Compensation and High-Frequency Speech Intelligibility for Digital Hearing Aids

被引：0
|
作者：
Guo, Zhaoyang [1 ]
Wang, Bo [1 ]
Wang, Xin'an [1 ]
机构：
[1] Peking Univ, Shenzhen Grad Sch, Dept Key Lab Microsyst, Lishi Rd 2199, Shenzhen 518055, Peoples R China
来源：
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES | 2017年 / E100A卷 / 07期
关键词：
digital hearing aid; loudness compensation; AWDRC; frequency compression; DYNAMIC-RANGE COMPRESSION; AMPLIFICATION; QUALITY;
D O I：
10.1587/transfun.E100.A.1552
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
A comprehensive method applying a nonlinear frequency compression (FC) as complementary to multi-band loudness compensation is proposed, which is able to improve loudness compensation and simultaneously increase high-frequency speech intelligibility for digital hearing aids. The proposed nonlinear FC (NLFC) improves the conventional methods in the aspect that the compression ratio (CR) is adjusted based on the speech intelligibility percentage in different frequency ranges. Then, an adaptive wide dynamic range compression (AWDRC) with a time-varying CR is applied to achieve adaptive loudness compensation. The experimental test results show that the mean speech identification is improved in comparison with the state-of-art methods.
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页码：1552 / 1556
页数：5
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