中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Speech signal enhancement through wavelet domain MMSE filtering (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Fenghua Z.; Le Y.; Jian W.; Qiang S.
收藏  |  浏览/下载:29/0  |  提交时间:2013/03/25
A new speech enhancement system that combine robust signal enhancement and minimum signal distortion is proposed in this paper. The proposed method introduces frequency depended  parametric  MMSE filtering techniques that involve wavelet packets. Voice activity detection (VAD) is used to further distinguish speech from noise and help to adaptively remove noise components from color noise eruptive noisy speech  while perceptual criteria is also taken into account. Experimental results and objective quality measurement test results validate the proposed speech enhancement system and illustrate the benefit of the proposed wavelet domain MMSE filtering as an excellent speech enhancement method to provide sufficient noise reduction and good intelligibility and perceptual quality  without causing considerable signal distortion and musical background noise method. 2010 IEEE.  
adaptive voice stream multicast over low-power wireless networks 会议论文  OAI收割
31st IEEE Real-Time Systems Symposium, RTSS 2010, San Diego, CA, 40850
Liqun Li; Guoliang Xing; Qi Han; Limin Sun
收藏  |  浏览/下载:28/0  |  提交时间:2011/03/31
qvs: quality-aware voice streaming for wireless sensor networks 会议论文  OAI收割
29th IEEE International Conference on Distributed Computing Systems, Montreal, CANADA, JUN 22-26,
Li Liqun; Xing Guoliang; Sun Limin; Liu Yan
  |  收藏  |  浏览/下载:29/0  |  提交时间:2011/03/20