计算机工程与应用2012，Vol.48Issue(18)：127-131,5.DOI:10.3778/j.issn.1002-8331.2012.18.028
基于约束方差的噪声谱估计算法
Noise spectrum estimation algorithm based on constrained variance
摘要
Abstract
In order to improve the accuracy of noise estimation in the non-stationary environment, this paper proposes a new noise estimation algorithm based on constrained variance. The smoothing parameter can be calculated through constraining the variance. The noise power spectrum is estimated. Simulation results show that in comparison with other three methods, this algorithm possesses a more short delay in tracking the behavior of the background noise, and it has a lower mean square error of noise estimation. It is especially remarkable in the non-stationary noise and burst noise environment.关键词
约束方差/噪声谱估计/语音增强Key words
constrained variance/ noise spectrum estimation/ speech enhancement分类
信息技术与安全科学引用本文复制引用
周成燕,周强,顾济华,赵鹤鸣,陶智..基于约束方差的噪声谱估计算法[J].计算机工程与应用,2012,48(18):127-131,5.基金项目
国家自然科学基金(No.61071215) （No.61071215）
苏州市科技发展计划(No.SYG201001). （No.SYG201001）
