Post-processing for Noise and Echo Canceller Using Adaptive Filter
نویسندگان
چکیده
A new post-processing method for acoustic echo canceler is proposed to reduce the residual echo and ambient noise. The method is based on the correlation of the desired signal and the estimation error signal of adaptive filter. The residual echoes are attenuated as proportional to the correlation of the desired signal and estimation error signal plays a role as Wiener filter for residual echo. Through computer simulations, it is shown that the performance of noise reduction and echo cancellation is dramatically improved.
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