发明公开
EP2544466A1 Method and apparatus for decomposing a stereo recording using frequency-domain processing employing a spectral subtractor
审中-公开
使用谱减法器的方法和装置用于立体声记录使用频域处理的分解
- 专利标题： Method and apparatus for decomposing a stereo recording using frequency-domain processing employing a spectral subtractor
- 专利标题（中）： 使用谱减法器的方法和装置用于立体声记录使用频域处理的分解
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申请号： EP11186719.8申请日： 2011-10-26
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公开(公告)号： EP2544466A1公开(公告)日： 2013-01-09
- 发明人: Uhle, Christian , Finauer, Stefan , Gampp, Stefan , Hellmuth, Oliver , Stocklmeier, Christian , Prokein, Peter
- 申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- 申请人地址： Hansastrasse 27c 80686 München DE
- 专利权人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- 当前专利权人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- 当前专利权人地址： Hansastrasse 27c 80686 München DE
- 代理机构： Zinkler, Franz
- 优先权： US504588P 20110705
- 主分类号： H04S3/00
- IPC分类号： H04S3/00
摘要：
An apparatus for generating a stereo side signal having a first side channel and a second side channel from a stereo input signal having a first input channel and a second input channel is provided. The apparatus comprises a modification information generator (110) for generating modification information based on mid-side information. Furthermore, the apparatus comprises a signal manipulator (120) being adapted to manipulate the first input channel based on the modification information to obtain the first side channel and being adapted to manipulate the second input channel based on the modification information to obtain the second side channel. The modification information generator (110) comprises a spectral subtractor (115) for generating the modification information by generating a difference value indicating a difference between a mono mid signal or a mono side signal of the stereo input signal and the first or the second input channel.
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