发明公开
- 专利标题: NARROW BAND NOISE REDUCTION FOR SPEECH ENHANCEMENT
- 专利标题(中): 降噪用于与远程场麦克风上的控制台的电子装置
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申请号: EP07759884.5申请日: 2007-03-30
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公开(公告)号: EP2012725A2公开(公告)日: 2009-01-14
- 发明人: MAO, Xiadong
- 申请人: Sony Computer Entertainment Inc.
- 申请人地址: 2-6-21, Minami-Aoyama Minato-ku Tokyo 107-0062 JP
- 专利权人: Sony Computer Entertainment Inc.
- 当前专利权人: Sony Computer Entertainment Inc.
- 当前专利权人地址: 2-6-21, Minami-Aoyama Minato-ku Tokyo 107-0062 JP
- 代理机构: Turner, James Arthur
- 优先权: US381727 20060504; US381729 20060504; US381728 20060504; US381725 20060504; US381724 20060504; US381721 20060504; PCT/US2006/017483 20060504; US418988 20060504; US418989 20060504; US429047 20060504
- 国际公布: WO2007130766 20071115
- 主分类号: A61F11/06
- IPC分类号: A61F11/06 ; G10K11/16 ; H03B29/00 ; H04B15/00 ; G10L15/00 ; G10L15/20
摘要:
Reduction of noise in a device having a console with one or more microphones and a source of narrow band distributed noise located on the console is disclosed. A microphone signal containing a broad band distributed desired sound and narrow band distributed noise is divided amongst a plurality of frequency bins. For each frequency bin, it is determined whether a portion of the signal within the frequency bin belongs to a narrow band distribution characteristic of the source of narrow band noise located on the console. Any frequency bins containing portions of the signal belonging to the narrow band distribution are filtered to reduce the narrow band noise.
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