Multi-channel echo canceling method and apparatus

Details Multi-channel echo canceling method and apparatus Multi-channel echo canceling method and apparatus

H - Electricity

04

B

H04B 3/20 (2006.01) H04M 9/08 (2006.01)

Patent

CA 2063037

Echo canceling method and apparatus for subtracting, from a mixed signal in which echoes produced from a plurality of reception signals are mixed with a transmission signal, a replica of the echoes in order to cancel the echoes in the mixed signal. The replica of the echoes is generated by the steps of selecting the reception signal which is leading in phase and producing a replica of the echoes from the selected reception signal by an adaptive filter. Generally, the replicas are produced by adaptive filters provided in one-to-one correspondence with the mixed signals.

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