发明名称 AUTOMATIC MICROPHONE MUTING OF UNDESIRED NOISES BY MICROPHONE ARRAYS
摘要 Methods and systems for cancelation of table noise in a speaker system used for video or audio conferencing are disclosed. Table noise is cancelled by using a vertical microphone array to distinguish the tilt angle of sound received by a microphone. If the sound is close to horizontal, the audio is muted. If the sound is above a given angle from horizontal, it is not muted, as this indicates a person speaking. This eliminates paper rustling, keyboard clicks and the like.
申请公布号 US2013294612(A1) 申请公布日期 2013.11.07
申请号 US201313865001 申请日期 2013.04.17
申请人 POLYCOM, INC. 发明人 FENG JINWEI;CHU PETER L.
分类号 H04R3/00 主分类号 H04R3/00
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