- 专利标题： Acoustic noise suppressing apparatus and acoustic noise suppressing method
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申请号： US16841199申请日： 2020-04-06
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公开(公告)号： US11152010B2公开(公告)日： 2021-10-19
- 发明人: Masanari Miyamoto , Naoya Tanaka , Hiromasa Ohashi
- 申请人： PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- 申请人地址： JP Osaka
- 专利权人： PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- 当前专利权人： PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- 当前专利权人地址： JP Osaka
- 代理机构： Greenblum & Bernstein, P.L.C.
- 优先权： JPJP2019-073493 20190408
- 主分类号： G10L15/20
- IPC分类号： G10L15/20 ; G10L21/0208 ; G10K11/16
摘要：
An acoustic noise suppressing apparatus outputs a first suppression audio signal in which the acoustic noise is suppressed by subtracting a first pseudo noise signal from the picked up audio signal, the first pseudo noise signal being generated based on a first delay signal and a first filter updated by a first algorithm which is valid when a plurality of talkers are talking, and outputs a second suppression audio signal in which the acoustic noise is suppressed by subtracting a second pseudo noise signal from the picked up audio signal, the second pseudo noise signal being generated based on a second delay signal and a second filter updated by a second algorithm which is valid when one talker is talking. The apparatus outputs a suppressed one of the first suppressed audio signal or the second suppressed audio signal.
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