Blind dereverberation of a speech signal

被引：0
|
作者：
Zverev, V. A. [1 ]
机构：
[1] Russian Acad Sci, Inst Appl Phys, Nizhnii Novgorod 603600, Russia
来源：
ACOUSTICAL PHYSICS | 2008年 / 54卷 / 02期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1134/S1063771008020140
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Possibilities to eliminate the reverberation from a speech signal are investigated by applying the method based on the determination of the parameters of the reverberation frequency response from the cepstrum of the reverberation-distorted signal. The delays of reverberating signals and, for the case of a weak reverberation, their amplitudes are determined from the cepstrum of the signal with reverberation. For the cases of medium and strong reverberation, the levels of reverberating signals are refined by adjusting a certain factor. The criterion used for the adjustment of the factor is based on the shape of the speech signal amplitude distribution. By numerical modeling, it is demonstrated that the proposed method can reduce the reverberation level by 30 dB.
引用
收藏
页码：261 / 268
页数：8
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