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4.Experimental results show that,compared with traditional double-talk detection methods,the new algorithm has comparable computation complexity and works more stably,thus improving the echo return loss enhancement(ERLE) during the double-talk.
5.To the linguistically keen ear it shows a trace of Asiatic origin, and a lot of what sounds like American double-talk.
6.My wife was quite convinced by what the salesman told her, but to me it was just a lot of double talk.
7.Signal processing for acoustic echo control includes modeling of reverberation, design of dereverberation algorithms, echo suppression, double-talk detection and adaptive acoustic echo cancellation, which is still a challenging problem in stereo full-duplex communication environments [3.53].
8.In an adaptive echo canceller,the detection algorithm able to distinguish echo pass change(EPC) from double-talk(DT) is vital to ensure that adaptive filter tap coefficients are updated in case of EPC and frozen during the DT period.
9.This paper gives a survey and analysis on the key technologies for echo cancellation: adaptive filtering and double talk/echo path change detection and control. It discusses the advantages and disadavantages of the existing methods, and proposes further research directions in this field.