发明公开
- 专利标题： VORRICHTUNG UND VERFAHREN ZUM VERARBEITEN EINES MULTIKANALSIGNALS
- 专利标题（英）： Device and method for processing a multi-channel signal
- 专利标题（中）： 设备和方法处理的多路信号
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申请号： EP05715611.9申请日： 2005-02-28
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公开(公告)号： EP1697930A1公开(公告)日： 2006-09-06
- 发明人: HERRE, Jürgen , SCHUG, Michael , GROESCHL, Alexander
- 申请人： Fraunhofer-Gesellschaft Zur Förderung der angewand ten Forschung e.v.
- 申请人地址： Hansastrasse 27c 80686 München DE
- 专利权人： Fraunhofer-Gesellschaft Zur Förderung der angewand ten Forschung e.v.
- 当前专利权人： Fraunhofer-Gesellschaft Zur Förderung der angewand ten 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： DE102004009954 20040301
- 国际公布： WO2005083678 20050909
- 主分类号： G10L19/00
- IPC分类号： G10L19/00 ; G10L19/02
摘要：
The invention relates to a device for processing a multi-channel signal comprising a unit (12) for determining a similarity between the first of two channels and the second of two channels. The device is also equipped with a unit (16) for carrying out a predictive filtering of the spectral coefficients, said unit being configured to carry out a predictive filtering by means of a single predictive filter (16a) for both channels, if the first and second channels are very similar and to carry out a predictive filtering by means of two separate predictive filters (16b), if the first and the second channels are dissimilar. This prevents the introduction of stereo artefacts and a degradation of the coding gain in stereo coding techniques.
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