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A New HB Weighted Time Delay Estimation Method in Reverberation Environment


Liyan Zhang, Fuliang Yin


Vol. 8  No. 7  pp. 70-74


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.


onset signal, reverberation, time delay estimation, microphone array