发明公开
- 专利标题： METHOD AND APPARATUS FOR DECOMPOSING A STEREO RECORDING USING FREQUENCY-DOMAIN PROCESSING EMPLOYING A SPECTRAL WEIGHTS GENERATOR
- 专利标题（中）： 方法和设备立体声录制由频率范围处理分离使用光谱权重发生器
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申请号： EP12731456.5申请日： 2012-07-03
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公开(公告)号： EP2730102A1公开(公告)日： 2014-05-14
- 发明人: UHLE, Christian , FINAUER, Stefan , GAMPP, Patrick , HELLMUTH, Oliver , PROKEIN, Peter , STÖCKLMEIER, Christian
- 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： US201161504588P 20110705; EP11186715 20111026
- 国际公布： WO2013004698 20130110
- 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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