Method and device for cancelling stereophonic echo with frequency domain filtering
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United States of America Patent
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May 18, 2004
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N/A
app pub date -
May 10, 2000
filing date -
May 12, 1999
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Abstract
The filtering coefficients of a frequency domain stereophonic echo canceller are adapted by a method which takes account of the cross-correlation between the input signals relating to the two channels. In particular, the adaptation process takes account of the coherence function, reducing the problems commonly encountered with stereophonic cancellation schemes when relatively correlated input signals occur.
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