基于EMD技术的语音特征提取方法
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
利用软件MATLAB仿真了语音信号的经验模态分解(EMD)特性,并与相关文献报导的其他分解方法进行了比较,结果表明:EMD法能达到更好的说话人识别效果。当不同的人发相同语音时,其频谱特性是不同的,把语音信号进行EMD分解后的IMF做频谱变换,便能得到一个特征向量,于是根据特征向量的不同而达到说话人识别的目的。以上实验结果有助于开辟说话人识别的新途径。
MATLAB is used to calculate the characteristic of speech signal using empirical mode decomposition(EMD),while compared with other methods,we find that:EMD has a better effect in speaker identification.When different people say the same words,their speech signal has the different characteristic of frequency,so we obtain an eigenvector by transforming the IMF of speech signal,and obtain a new method of speaker identification using EMD.The result is helpful for finding new method of speaker identification.
引文
[1]张贤达.现代信号处理[M].清华大学出版社,2002.
    [2]韩纪庆等.语音信号处理[M].清华大学出版社,2004.
    [3]杨录.基于EMD法的信号处理[J].微计算机信息,2007,24:228-230.
    [4]万建.一种基于EMD技术的信号去噪算法[J].哈尔滨商业大学学报,2005,21:479-485.
    [5]谭善文.Hilbert-Huang变换的滤波特性及其应用[J].重庆大学学报,2004,27:9-12.
    [6]武安绪等.EMD新技术在数字波形预处理中的初步应用[J].华南地震,2006,26:133-138.
    [7]Huang N E.The empirical mode decomposition and the Hilbert spectrumfor nonlinear and non2stationary time series analysis[J].Proc R Soc,1998,A454:903-995.
    [8]Huang N E.Review of empirical mode decomposition[J].Proceedings of SPIE-The international Society for Optical Engineering,2001,439(1):71-80.
    [9]Quek S T,Tua P S,Wang Q.Detecting anomalies in beams and plate based on the Hilbert-Huang transform of real signals[J].Smart Materials and Structures,2003,12:447-460.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心