发明名称 |
METHOD AND DEVICE FOR CANCELLING STEREOPHONIC ECHO WITH FREQUENCY DOMAIN FILTERING |
摘要 |
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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申请公布号 |
CA2307999(A1) |
申请公布日期 |
2000.11.12 |
申请号 |
CA20002307999 |
申请日期 |
2000.05.10 |
申请人 |
MATRA NORTEL COMMUNICATIONS |
发明人 |
CAPMAN, FRANCOIS;BERTHAULT, FREDERIC |
分类号 |
H04M9/08;(IPC1-7):H04B3/23;G10K11/178;H04S7/00 |
主分类号 |
H04M9/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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