《机电工程》杂志,月刊( 详细... )
中国标准连续出版物号: ISSN 1001-4551 CN 33-1088/TH
主办单位:浙江省机电集团有限公司
浙江大学
主编:陈 晓
副 主 编:唐任仲、罗向阳(执行主编)
总 经 理:罗向阳
出 版:浙江《机电工程》杂志社有限公司
地 址:杭州市上城区延安路95号浙江省机电集团大楼二楼211、212室
电话Tel:+86-571-87041360、87239525
E-mail:meem_contribute@163.com
国外发行:中国国际图书贸易总公司
订阅:全国各地邮局 国外代号:M3135
国内发行:浙江省报刊发行局
邮发代号:32-68
广告发布登记证:杭上市管广发G-001号
在线杂志 |
当前位置: 机电工程 >>在线杂志 |
基于小波多分辨分析的基音检测算法及Simulink实现*
作者:许钢,江明,陈其工 日期:2008-08-14/span> 浏览:3296 查看PDF文档
基于小波多分辨分析的基音检测算法及Simulink实现*
许钢,江明,陈其工
(安徽工程科技学院 电气工程系,安徽 芜湖 241000)
摘要:为研究小波多分辨分析在信号频带划分中的应用,提出了一种基于小波多分辨分析方法和自相关函数的语音信号基音周期检测算法,在Matlab/Simulink环境下,采用层次化的设计方法和用户自定义函数模块进行了算法系统的设计,以采样频率为8 kHz、采样位数为16 bits的单声道语音信号为处理对象,进行了该算法系统的仿真实验。仿真实验结果验证了该系统的有效性,并取得了良好的检测效果。
关键词:基音检测;小波多分辨分析;语音信号;Simulink;自相关函数;
中图分类号:TN912.3文献标识码:A文章编号:1001-4551(2008)07-0029-05
A pitch detection algorithm based on wavelet multiresolution analysis
and its Simulink implementation
XU Gang, JIANG Ming, CHEN Qigong
(Department of Electric Engineering, Anhui University of Science and Technology, Wuhu 241000, China)
Abstract: The application of wavelet multiresolution analysis to signal frequency band division was discussed. On the basis of it, a speech signals pitch detection algorithm used by the methods of wavelet transform and autocorrelation function(ACF) was presented. The system of the algorithm had been designed in the environment of Matlab/Simulink. And in the process of design, the conception of hiberarchy and userdefined functions were introduced in the system. Finally, that asection of a mono speech signal with 8 kHz sample rate and 16 bits per sample was considered as the object to be processed, the algorithm system had been simulated. Experiment result shows that the algorithm system is valid and the effect of pitch detection is good.
Key words: pitch detection; wavelet multiresolution analysis; speech signal; Simulink; autocorrelation function(ACF)
参考文献(Reference):
[1]韩纪庆,张磊.语音信号处理[M].北京:清华大学出版社,2004.
[2]陈小利,徐金甫.利用小波变换加权自相关的基音检测法[J].数据采集与处理,2007,22(4):463-467.
[3]鲍长春.低比特率数字语音编码基础[M].北京:北京工业大学出版社,2001:44-48.
[4]KADAMBE S. Application of the wavelet transform for pitch detection of speech signals [J]. IEEE Transactions on Information Theory, 1992,38(2):917-924.
[5]李香春,杜利民.一种基于多尺度边缘特征提取的基音检测算法 [J].电子学报,2003,31(10):1500-1502.
[6]STLPHANE M. A Wavelet Tour of Signal Processing[M]. 2nd ed. Academic Press, 1999.
[7]MCCREE A, STACHURSKE J, UNNO T, et al. A 4 kb/s Hybrid MELP/CELP Speech Coding Candidate for ITU Standardization [C]//Acoustics, Speech, and Signal Processing, 2002. Proceedings. (ICASSP apos;02), IEEE International Conference on Volume 1, Issue, 2002,1(1):629-632.
[8]DEXHMUKH O. Use of temporal information: detection of periodicity, aperiodicity, and pitch in speech [J]. IEEE Transactions on Speech and Audio Processing, 2005,13(5):776-786.
友情链接