发明申请
- 专利标题: Wind Noise Reduction Device
- 专利标题(中): 风降噪装置
-
申请号: US12142243申请日: 2008-06-19
-
公开(公告)号: US20080317261A1公开(公告)日: 2008-12-25
- 发明人: Masahiro YOSHIDA , Tomoki OKU
- 申请人: Masahiro YOSHIDA , Tomoki OKU
- 申请人地址: JP Osaka
- 专利权人: SANYO ELECTRIC CO., LTD.
- 当前专利权人: SANYO ELECTRIC CO., LTD.
- 当前专利权人地址: JP Osaka
- 优先权: JPJP2007-164745 20070622; JPJP2007-200432 20070801; JPJP2007-334121 20071226
- 主分类号: H04B15/00
- IPC分类号: H04B15/00
摘要:
In a wind noise reduction device that reduces wind noise contained in an input sound signal to generate a corrected sound signal, when a predetermined band including the band of the wind noise is a first band and a predetermined band higher in frequency than the first band is a second band, the wind noise reduction device includes: a first corrector that has a signal generator generating, based on a sound signal (i) contained in the input sound signal and lying in a band higher in frequency than the first band, a sound signal (ii) lying in the first band and different from a sound signal (iii) contained in the input sound signal and lying in the first band, and that generates a first corrected sound signal based on the sound signal (ii) generated by the signal generator; a second corrector that reduces the signal level of a sound signal (iv) contained in the input sound signal and lying in the second band to thereby generate a second corrected sound signal as a sound signal (v) having the wind noise reduced and lying in the second band; and a corrected sound signal outputter that outputs the corrected sound signal based on the first and second corrected sound signals.
公开/授权文献
- US08428275B2 Wind noise reduction device 公开/授权日:2013-04-23
信息查询