<p>A system for canceling acoustic feedback includes an input for receiving a digital audio signal and a processor configured to detect acoustic feedback signal in the digital audio signal and to determine the frequency of the feedback signal The system also includes a plurality of bandpass filters for attenuating the feedback signal. The processor is further configured to: select a bandpass filter from among the plurality of bandpass filters. The selected bandpass filter comprises a response characteristic that attenuates parts of the signal at the frequency of acoustic feedback signal</p>
申请公布号
WO2007013981(A2)
申请公布日期
2007.02.01
申请号
WO2006US28200
申请日期
2006.07.20
申请人
GABLES ENGINEERING, INC.;OSMANOVIC, NERMIN;CLARK, VICTOR