An LP spectrum modification method for noisy speech based on linear extrapolation - 文章详情页

作者：

Liang, Yan (Liang, Yan.) | Bao, Changchun (Bao, Changchun.) (学者：鲍长春) | Xia, Bingyin (Xia, Bingyin.) | Li, Na (Li, Na.) | Li, Ruwei (Li, Ruwei.)

收录：

EI Scopus

摘要：

An　LP　(Linear　Prediction)　spectrum　modification　method　is　proposed　based　on　linear　extrapolation　for　different　signal　to　noise　ratio　under　the　white　noise　environment.　A　direct　modification　on　the　noisy　LP　spectrum　is　employed,　since　the　autocorrelation　coefficients　of　the　original　speech　are　not　available　in　some　practical　applications.　The　linear　suppression　rule　is　applied　into　the　high-frequency　region　of　the　noisy　LP　spectrum,　while　no　modification　is　made　in　the　low-frequency　region.　The　experimental　results　on　ITU-T　G.722.2　demonstrate　that,　comparing　with　the　reference　methods,　the　proposed　method　could　provide　the　reconstructed　speech　with　an　obvious　improvement　both　in　objective　and　subjective　quality　by　using　the　modified　LP　coefficients.　©　2012　IEEE.

关键词：

Extrapolation Signal processing Signal to noise ratio White noise

作者机构：

[ 1 ] [Liang, Yan]Speech and Audio Signal Processing Laboratory, School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, China
[ 2 ] [Bao, Changchun]Speech and Audio Signal Processing Laboratory, School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, China
[ 3 ] [Xia, Bingyin]Speech and Audio Signal Processing Laboratory, School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, China
[ 4 ] [Li, Na]Speech and Audio Signal Processing Laboratory, School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, China
[ 5 ] [Li, Ruwei]Speech and Audio Signal Processing Laboratory, School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing, China

通讯作者信息：

电子邮件地址：

查看成果更多字段

成果类型
所属机构

所有年份指定年份从至