Effective compression and noise reduction configurations for hearing protectors

被引：0

作者：

Chung, King ^{[1
]}

机构：

[1] Department of Speech, Language, and Hearing Sciences, Purdue University, West Lafayette, IN 47907, United States

来源：

Journal of the Acoustical Society of America | 2007年 / 121卷 / 02期

关键词：

The author proposed to adopt wide dynamic range compression and adaptive multichannel modulation-based noise reduction algorithms to enhance hearing protector performance. Three experiments were conducted to investigate the effects of compression and noise reduction configurations on the amount of noise reduction; speech intelligibility; and overall preferences using existing digital hearing aids. In Experiment 1; sentence materials were recorded in speech spectrum noise and white noise after being processed by eight digital hearing aids. When the hearing aids were set to 3:1 compression; the amount of noise reduction achieved was enhanced or maintained for hearing aids with parallel configurations; but reduced for hearing aids with serial configurations. In Experiments 2 and 3; 16 normal-hearing listeners' speech intelligibility and perceived sound quality were tested when they listened to speech recorded through hearing aids with parallel and serial configurations. Regardless of the configuration; the noise reduction algorithms reduced the noise level and maintained speech intelligibility in white noise. Additionally; the listeners preferred the parallel rather than the serial configuration in 3:1 conditions and the serial configuration in 1:1 rather than 3:1 compression when the noise reduction algorithms were activated. Implications for hearing protector and hearing aid design are discussed. © 2007 Acoustical Society of America;

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摘要：

Journal article (JA)

引用

页码：1090 / 1101