Acoustic noise suppression is provided in multiple-microphone systems using Voice Activity Detectors (VAD). A host system receives acoustic signals via multiple microphones. The system also receives information on the vibration of human tissue associated with human voicing activity via the VAD. In response, the system generates a transfer function representative of the received acoustic signals upon determining that voicing information is absent from the received acoustic signals during at least one specified period of time. The system removes noise from the received acoustic signals using the transfer function, thereby producing a denoised acoustic data stream.
申请公布号
WO2005029468(A1)
申请公布日期
2005.03.31
申请号
WO2004US29234
申请日期
2004.09.09
申请人
ALIPHCOM, INC.;BURNETT, GREGORY, C.;BREITFELLER, ERIC, F.