发明名称 |
Method for vectorial noise-reduction in speech, and implementation device |
摘要 |
A sound pick-up operation is carried out by means of at least four microphones positioned in a plane before the speaker, linear combinations are formed by additions and subtractions of the signals from these microphones and certain of these combinations are used as noise-only sources to process them by an adaptive vector filter to produce an estimation of the noise that is subtracted from the noisy signal.
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申请公布号 |
US5500903(A) |
申请公布日期 |
1996.03.19 |
申请号 |
US19930174420 |
申请日期 |
1993.12.28 |
申请人 |
SEXTANT AVIONIQUE |
发明人 |
GULLI, CHRISTIAN |
分类号 |
H03H21/00;G01S3/805;G01S3/86;H04B3/04;H04R1/40;H04R3/00;(IPC1-7):H04R3/00 |
主分类号 |
H03H21/00 |
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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