Invention Grant
US08213596B2 Method of accelerating the training of an acoustic echo canceller in a full-duplex beamforming-based audio conferencing system
有权
在全双工波束形成的音频会议系统中加速声学回声消除器的训练的方法
- Patent Title: Method of accelerating the training of an acoustic echo canceller in a full-duplex beamforming-based audio conferencing system
- Patent Title (中): 在全双工波束形成的音频会议系统中加速声学回声消除器的训练的方法
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Application No.: US11392915Application Date: 2006-03-29
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Publication No.: US08213596B2Publication Date: 2012-07-03
- Inventor: Franck Beaucoup , Michael Tetelbaum
- Applicant: Franck Beaucoup , Michael Tetelbaum
- Applicant Address: CA Ottawa, Ontario
- Assignee: Mitel Networks Corporation
- Current Assignee: Mitel Networks Corporation
- Current Assignee Address: CA Ottawa, Ontario
- Priority: EP05252066 20050401
- Main IPC: H04M9/08
- IPC: H04M9/08
Abstract:
A method and apparatus is set forth for accelerating the total acoustic echo cancellation convergence time in a microphone array full-duplex conferencing system with beamformer. The invention is based on sequentially switching the beamformer to untrained sectors during periods of far-end speech activity and performing real-time cancellation of far-end echo signals from the near-end signals to consecutively adapt and store filter coefficients for the echo canceller corresponding to each sector.
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