[1]林琴 张道信 吴小培.一种基于改进谱减法的语音去噪新方法[J].计算机技术与发展,2007,(07):63-66.
 LIN Qin,ZHANG Dao-xin,WU Xiao-pei.A New Speech Denoising Algorithm Based on Improved Spectral Subtraction[J].,2007,(07):63-66.
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一种基于改进谱减法的语音去噪新方法()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2007年07期
页码:
63-66
栏目:
智能、算法、系统工程
出版日期:
1900-01-01

文章信息/Info

Title:
A New Speech Denoising Algorithm Based on Improved Spectral Subtraction
文章编号:
1673-629X(2007)07-0063-04
作者:
林琴 张道信 吴小培
安徽大学计算智能与信息处理教育部重点实验室
Author(s):
LIN Qin ZHANG Dao-xin WU Xiao-pei
Ministry of Education Key Lab. of Intelligent Computing and Signal Processing, Anhui University
关键词:
谱减法信噪比短时能量过零率语音去噪
Keywords:
spectral subtraction signal to noise ratio short- time energy zero-cross ratio speech denoising
分类号:
TP18
文献标志码:
A
摘要:
介绍了改进谱减法的原理及算法。提出在信噪比(SNR)较低的情况下,根据语音短时能量和过零率,判断在无声或有声期间是否偶然的噪声过高,从而设定合适的参数降低噪声。实验证明该方法提高了输出信噪比,改善了语音质量,具有良好的语音去噪的效果
Abstract:
In this paper, the theory and algorithm of the improved spectral subtraction are presented. When the signal to noise ratio (SNR) is low,judge whether the speech contains the high occasional noise in the period unvoiced or voiced, according to the short - time energy and zero - cross ratio of the speech. Then the proper parameters are set to eliminate the noise. The experimental results show that the method enhances the signal to noise ratio (SNR), improves the speech quality and gets better denoising effect

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备注/Memo

备注/Memo:
安徽省教育厅自然科学基金资助项目(2002kj003);安徽大学“模式识别”创薪基金资助项目.林琴(1982-),女,安徽六安人,硕士研究生,研究方向为智能信息处理;张道信,副教授,硕士,研究方向为智能信息处理;吴小培,教授,博士,博士生导师,研究方向为智能信息处理
更新日期/Last Update: 1900-01-01