Invention Application
- Patent Title: Double-Talk Detection for Audio Communication
- Patent Title (中): 音频通信的双向通话检测
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Application No.: US13490063Application Date: 2012-06-06
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Publication No.: US20130332155A1Publication Date: 2013-12-12
- Inventor: Vinod Prakash , Xiaoqin Sun , Warren Lam , Qin Li
- Applicant: Vinod Prakash , Xiaoqin Sun , Warren Lam , Qin Li
- Applicant Address: US WA Redmond
- Assignee: MICROSOFT CORPORATION
- Current Assignee: MICROSOFT CORPORATION
- Current Assignee Address: US WA Redmond
- Main IPC: G10L21/02
- IPC: G10L21/02 ; G10L21/00

Abstract:
The detection of double-talk in audio communication is provided. A communication device may receive an echo signal mixed with a speech signal at a near end location. The echo signal may be generated by speech transmitted by a remote party at a far end location to a local party at the near end location. The speech signal may be received from the local party for transmission to the remote party. The communication device may then filter the echo signal and the speech signal. The communication device may then analyze the speech signal to identify speech characteristics which indicate the presence of double-talk. The communication device may then set a flag upon identifying the speech characteristics which indicate the presence of the double-talk. The communication device may then process the filtered signals to further suppress remaining echo prior to transmission of the speech signal to the remote party.
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