[1]冯纪强,徐 晨,张维强.一种基于能零积的综合去噪方法(英文)[J].深圳大学学报理工版,2007,24(4):399-403.
 FENG Ji-qiang,XU Chen,and ZHANG Wei-qiang.A multiple de-noising method based on energy-zero-product[J].Journal of Shenzhen University Science and Engineering,2007,24(4):399-403.
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一种基于能零积的综合去噪方法(英文)()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第24卷
期数:
2007年4期
页码:
399-403
栏目:
出版日期:
2007-10-30

文章信息/Info

Title:
A multiple de-noising method based on energy-zero-product
文章编号:
1000-2618(2007)04-0399-05
作者:
冯纪强徐 晨张维强
深圳大学智能科学计算研究所,深圳 518060
Author(s):
FENG Ji-qiangXU Chenand ZHANG Wei-qiang
Institute of Intelligent Computing Science,Shenzhen University,Shenzhen 518060,P.R.China
关键词:
语音信号短时能零积谱减法去噪
Keywords:
speech signal short-time energy-zero-product spectral subtraction de-noising
分类号:
TP 911
文献标志码:
A
摘要:
基于短时能零积提出一种改进的语音综合去噪方法.通过短时能零积实现噪音阈值选择和噪音功率谱的自适应调整,得到较理想的语音起止点和噪音的功率谱估计.根据噪音在语音段和无音段不同的分布特征,噪音功率在不同阶段设置不同的权重,实现更好的谱减去噪.对每连续三帧进行残留噪音处理,可进一步除去残留噪音.实验表明,本法去噪效果优于使用固定噪音功率谱估计的传统谱减去噪方法.
Abstract:
An improved speech de noising method by modifying the spectral subtraction technique based on the energy-zero-product was presented.Firstly,the power spectrum of the noisy speech and its threshold can be adjusted via the short time energy-zero-product.So the exact begin end points as well as the accurate noise power spectrum are obtained.Secondly,during the course of de noising using the modified spectral subtraction technique,different weights are assigned to the noise power spectrum based on the different characteristics of the noisy signal in both the speech and non speech segments.Finally,the method of residual noise reduction is applied to the residual noise.Simulation experiment results illustrate that this method is more effective than the conventional spectral subtraction methods using the fixed noise power spectrum.

参考文献/References:

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备注/Memo

备注/Memo:

收稿日期:2006-12-30;修回日期:2007-08-09
基金项目:广东省自然科学基金资助项目(06105776); 广东省科技计划资助项目(2005B10201009); 深圳市科技计划资助项目(200511)
作者简介:冯纪强(1979-),男(汉族),山东省平邑县人,深圳大学硕士研究生.E-mail:jiqiangfeng.China@yahoo.com.cn
通讯作者:徐晨(1965-),男(汉族),深圳大学教授.E-mail:xuchen@szu.edu.cn

更新日期/Last Update: 2007-12-05