Zoom Communications, Inc.

Zhenghang Gu

Zhaofeng Jia

Qiyong Liu

Zexian Wu

Chunyu Zhang

Ye Wang

For online audio/video conferencing applications deployed in an open office environment, using shared conference devices, it can be advantageous to define an acoustic fence. A non-participant audio received from outside the acoustic fence can be considered noise and filtered out before transmission of an audio signal to a far end recipient. Three suppression stages are used to filter the non-participant audio. The first suppression stage uses beamformers for suppression. The second suppression stage is mask-based, and the third suppression stage is reference-based. The three suppression stages filter out non-participant audio signals, having a wide range of frequencies.

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San Jose, CA, United States of America

Zhenghang Gu