发明申请
US20100215184A1 Method for Determining a Set of Filter Coefficients for an Acoustic Echo Compensator
有权
用于确定声学回波补偿器的滤波器系数集的方法
- 专利标题： Method for Determining a Set of Filter Coefficients for an Acoustic Echo Compensator
- 专利标题（中）： 用于确定声学回波补偿器的滤波器系数集的方法
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申请号： US12708172申请日： 2010-02-18
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公开(公告)号： US20100215184A1公开(公告)日： 2010-08-26
- 发明人: Markus Buck , Gerhard Schmidt , Tobias Wolff
- 申请人： Markus Buck , Gerhard Schmidt , Tobias Wolff
- 申请人地址： US MA Burlington
- 专利权人： NUANCE COMMUNICATIONS, INC.
- 当前专利权人： NUANCE COMMUNICATIONS, INC.
- 当前专利权人地址： US MA Burlington
- 优先权： EP09002542.0 20090223
- 主分类号： H04B3/20
- IPC分类号： H04B3/20
摘要：
The invention provides a method for determining a set of filter coefficients for an acoustic echo compensator in a beamformer arrangement. The acoustic echo compensator compensates for echoes within the beamformed signal. A plurality of sets of filter coefficients for the acoustic echo compensator is provided. Each set of filter coefficients corresponds to one of a predetermined number of steering directions of the beamformer arrangement. The predetermined number of steering directions is equal to or greater than the number of microphones in the microphone array. For a current steering direction, a current set of filter coefficients for the acoustic echo compensator is determined based on the provided sets of filter coefficients.