发明名称 SPATIAL INTERFERENCE SUPPRESSION USING DUAL- MICROPHONE ARRAYS
摘要 Systems, processes, devices, apparatuses, algorithms and computer readable medium for suppressing spatial interference using a dual microphone array for receiving, from a first microphone and a second microphone that are separated by a predefined distance, and that are configured to receive source signals, respective first and second microphone signals based on received source signals. A phase difference between the first and the second microphone signals is calculated based on the predefined distance. An angular distance between directions of arrival of the source signals and a desired capture direction is calculated based on the phase difference. Directional-filter coefficients are calculated based on the angular distance. Undesired source signals are filtered from an output based on the directional-filter coefficients.
申请公布号 EP2932731(A1) 申请公布日期 2015.10.21
申请号 EP20130814766 申请日期 2013.12.12
申请人 CISCO TECHNOLOGY, INC. 发明人 SUN, HAOHAI;MOBERG, ESPEN
分类号 H04R3/00;G10L21/0216;H04R1/40 主分类号 H04R3/00
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