发明名称 |
ECHO CANCELLATION USING CLOSED-FORM SOLUTIONS |
摘要 |
A system that utilizes closed-form solutions to perform echo cancellation is described. The system includes a filter, filter parameter determination logic and a combiner. The filter is configured to process a far-end audio signal in accordance with one or more filter parameters to generate an estimated echo signal. The filter parameter determination logic is configured to update estimated statistics associated with the far-end audio signal and a microphone signal based on instantaneous statistics associated with the far-end audio signal and the microphone signal, and calculate the one or more filter parameters based upon the updated estimated statistics. The combiner is configured to generate an estimated near-end audio signal by subtracting the estimated echo signal from the microphone signal.
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申请公布号 |
US2013216057(A1) |
申请公布日期 |
2013.08.22 |
申请号 |
US201213720672 |
申请日期 |
2012.12.19 |
申请人 |
BROADCOM CORPORATION;BROADCOM CORPORATION |
发明人 |
THYSSEN JES;ZENG HUAIYU;SOLLENBERGER NELSON;CHEN JUIN-HWEY |
分类号 |
H04M9/08 |
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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