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[1] Zou Cairong, Chen Guoming, Zhao Li, et al. Speech enhancement based on leakage constraints DF-GSC [J]. Journal of Southeast University (English Edition), 2007, 23 (4): 507-511. [doi:10.3969/j.issn.1003-7985.2007.04.006]
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Speech enhancement based on leakage constraints DF-GSC()
基于泄漏约束的DF-GSC语音增强
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
23
Issue:
2007 4
Page:
507-511
Research Field:
Information and Communication Engineering
Publishing date:
2007-12-30

Info

Title:
Speech enhancement based on leakage constraints DF-GSC
基于泄漏约束的DF-GSC语音增强
Author(s):
Zou Cairong1;  2;  Chen Guoming1;  Zhao Li1
1 School of Information Science and Engineering, Southeast University, Nanjing 210096, China
2 Foshan University, Foshan 528000, China
邹采荣1;  2;  陈国明1;  赵力1
1东南大学信息科学与工程学院, 南京 210096; 2佛山科学技术学院, 佛山 528000
Keywords:
speech enhancement;  general sidelobe canceller(GSC);  speech leakage
语音增强;  广义旁瓣抵消;  语音泄漏
PACS:
TN912.35
DOI:
10.3969/j.issn.1003-7985.2007.04.006
Abstract:
In order to improve the performance of general sidelobe canceller(GSC)based speech enhancement, a leakage constraints decision feedback generalized sidelobe canceller(LCDF-GSC)algorithm is proposed. The method adopts DF-GSC against signal mismatch, and introduces a leakage factor in the cost function to deal with the speech leakage problem which is caused by the part of the speech signal in the noise reference signal. Simulation results show that although the signal-to-noise ratio(SNR)of the speech signal through LCDF-GSC is slightly less than that of DF-GSC, the IS measurements show that the distortion of the former is less than that of the latter. MOS(mean opinion score)scores also indicate that the LCDF-GSC algorithm is better than DF-GSC and the Weiner filter algorithm.
为了改善广义旁瓣抵消(GSC)语音增强方法的性能, 提出了一种带有泄漏约束的判决反馈旁瓣抵消(LCDF-GSC)方法.采用DF-GSC方法以解决GSC对波达方向敏感的问题, 在代价函数中引入泄漏因子, 以此改善语音失真的问题, 而这种问题是由于噪声参考信号中含有语音成份造成的.试验结果表明, 尽管经过LCDF-GSC处理后的语音信号信噪比要略低于DF-GSC, IS测度表明这时前者的语音信号失真度要小于后者.MOS分也表明LCDF-GSC方法要优于DF-GSC和单通道Weiner滤波算法.

References:

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Memo

Memo:
Biography: Zou Cairong(1963—), male, doctor, professor, zoucairong@seu.edu.cn.
Last Update: 2007-12-20