A post-filter for acoustic echo cancellation in frequency domain
2014
Most of the traditional acoustic echo cancellation algorithms are based on an adaptive filter in time domain for estimating the echo path response. Other solutions to this problem using adaptive filter in frequency domain were proposed. Impressive performances were obtained in frequency domain compared with time domain, this is due to the flexibility and low computational complexity of frequency domain techniques. In this paper, an acoustic echo canceller using frequency domain adaptive filter is combined with spectral noise suppressor technique. Results indicated that the performances of the combined scheme yielded superiority in the performances than the traditional schemes.
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