发明名称 |
AUDIO SOURCE LOCALIZATION |
摘要 |
An audio source localization apparatus receives signals from a microphrine array (101), and a reference processor (105) generates at least three reference beams with different directional properties. An estimation processor (107) which generates simultaneous direction estimates for two sound sources, comprises a circuit (401) combining signals of the at least three reference beams with a beam shape parameter reflecting a shape of an audio beamform and a beam direction parameter reflecting a direction of an audio beamform for the combined signal. A cost processor (403) generates a cost measure indicative of an energy of the combined signal and a minimization processor (405) estimates values of the beam shape parameter and the beam direction parameter which correspond to a local minimum of the cost measure. A direction processor (407) then determines simultaneous direction estimates for two sound sources from the determined parameter values. Improved direction estimation for two simultaneous sound sources may be achieved.
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申请公布号 |
US2013128701(A1) |
申请公布日期 |
2013.05.23 |
申请号 |
US201113521244 |
申请日期 |
2011.02.16 |
申请人 |
DERKX RENE MARTINUS MARIA;KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
DERKX RENE MARTINUS MARIA |
分类号 |
G01S3/803 |
主分类号 |
G01S3/803 |
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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