<p>Processing requirements for acoustic echo cancellation in voice communications are significant and are even more so as the bandwidth of the communication increases. Whilst voice communication occupies a relatively narrow band of frequencies the processing requirements and so forth for wideband communication render acoustic echo cancellation difficult to achieve in a cost effective manner. The invention provides for acoustic echo cancellation within wideband communications by dividing the communications into sub-bands and applying acoustic echo cancellation to some sub- bands whilst processing other sub-bands according to the status of the communications. Additional sub-bands are transmitted at either full-duplex or half-duplex.</p>
申请公布号
WO2010031186(A1)
申请公布日期
2010.03.25
申请号
WO2009CA01324
申请日期
2009.09.22
申请人
MAGOR COMMUNICATIONS CORPORATION;ADENEY, KATHRYN;SWAN, DEAN