期刊名称：International Journal of Computer Science and Network Security
印刷版ISSN：1738-7906
出版年度：2008
卷号：8
期号：7
页码：70-74
出版社：International Journal of Computer Science and Network Security
摘要：In the tele-conference, the speech recognition system is mainly affected by the reverberation and not affected by the noise. The model for receiving signals adopted by most time delay estimation methods are additive noise model, which are not suitable for the system. Thus this paper illustrates one HB weight time delay estimation method in the reverberation environment based on onset signals. This method uses the onset signals without reverberation to estimate the cross power spectrum of the signals, then compensates the power spectrum of the noise, and at last adopts HB method to realize the accurate time delay estimation. The simulation result shows the validity of the method.
关键词：onset signal; reverberation; time delay estimation; microphone array
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