东南大学学报（英文版）2016，Vol.32Issue(2)：141-145,5.DOI:10.3969/j.issn.1003-7985.2016.02.002
一种自适应多通道响度补偿方法
An adaptive multichannel loudness compensation method
摘要
Abstract
To alleviate the conflict between audibility and distortion in the conventional loudness compensation method, an adaptive multichannel loudness compensation method is proposed for hearing aids. The linear and wide dynamic range compression ( WDRC ) methods are alternately employed according to the dynamic range of the band-passed signal and the hearing range ( HR) of the patient. To further reduce the distortion caused by the WDRC and improve the output signal to noise ratio ( SNR ) under noise conditions, an adaptive adjustment of the compression ratio is presented. Experimental results demonstrate that the output SNR of the proposed method in babble noise is improved by at least 1. 73 dB compared to the WDRC compensation method, and the average speech intelligibility is improved by 6. 0% and 5. 7%, respectively, compared to the linear and WDRC compensation methods.关键词
响度补偿/动态范围压缩/gammatone滤波器组/助听器Key words
loudness compensation/wide dynamic range compression/gammatone filter banks/hearing aids分类
信息技术与安全科学引用本文复制引用
王侠,梁瑞宇,王青云,申红明,赵力,邹采荣..一种自适应多通道响度补偿方法[J].东南大学学报（英文版）,2016,32(2):141-145,5.基金项目
Foundation items:The National Natural Science Foundation of China ( No.61301219,61375028,61273266), the Natural Science Foundation of Jiangsu Province ( No. BK20130241), the Fundamental Research Funds for the Central Universities ( No.2242013K30010), the Science and Technology Program of Nantong ( No. BK2014002) （ No.61301219,61375028,61273266）
