发明名称 |
Cotalker nulling based on multi super directional beamformer |
摘要 |
Speech from either a driver 102 or a passenger 104 in a vehicle 100 is selected directionally via a pair of microphones 108, 110 separated by a distance 114 whose signals are sent to a processor (DSP) which analyses their frequency components in order to identify driver and passenger sounds (by eg. examining their phase as in figs. 7-9) and suppress the drivers frequency components in the passenger sound, or vice versa, thus providing directional selection (ie. beamforming). Components below a certain threshold (fig. 6) may be attenuated or removed after Voice Activity Detection (VAD) and a speech recognizer may also be employed. |
申请公布号 |
GB2522009(A) |
申请公布日期 |
2015.07.15 |
申请号 |
GB20130022975 |
申请日期 |
2013.12.24 |
申请人 |
CONTINENTAL AUTOMOTIVE SYSTEMS, INC. |
发明人 |
JIANMING SONG;MIKE REUTER |
分类号 |
G10L21/0272;G10L21/02;G10L25/78 |
主分类号 |
G10L21/0272 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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