发明名称 |
ECHO SUPPRESSION COMPRISING MODELING OF LATE REVERBERATION COMPONENTS |
摘要 |
An apparatus for computing filter coefficients for an adaptive filter is disclosed. The adaptive filter is used for filtering a microphone signal so as to suppress an echo due to a loudspeaker signal. The apparatus has: an echo decay modeling means for modeling a decay behavior of an acoustic environment and for providing a corresponding echo decay parameter; and computing means for computing the filter coefficients of the adaptive filter on the basis of the echo decay parameter. A corresponding method has: providing echo decay parameters determined by means of an echo decay modeling means; and computing the filter coefficients of the adaptive filter on the basis of the echo decay parameters.
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申请公布号 |
US2013230184(A1) |
申请公布日期 |
2013.09.05 |
申请号 |
US201313867311 |
申请日期 |
2013.04.22 |
申请人 |
DER ANGEWANDTEN FORSCHUNG E.V. FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG;FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. |
发明人 |
KUECH FABIAN;SCHMIDT MARKUS;FAVROT ALEXIS;FALLER CHRISTOF |
分类号 |
H04R3/00;G10L21/0208 |
主分类号 |
H04R3/00 |
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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