发明公开
EP2980789A1 Apparatus and method for enhancing an audio signal, sound enhancing system
审中-公开
梵语和Verfahren zur Verbesserung eines Audiosignals，Tonverbesserungssystem
- 专利标题： Apparatus and method for enhancing an audio signal, sound enhancing system
- 专利标题（中）： 梵语和Verfahren zur Verbesserung eines Audiosignals，Tonverbesserungssystem
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申请号： EP14179181.4申请日： 2014-07-30
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公开(公告)号： EP2980789A1公开(公告)日： 2016-02-03
- 发明人: Uhle, Christian , Gampp, Patrick , Hellmuth, Oliver , Varga, Stefan , Scharrer, Sebastian
- 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
- 主分类号： G10L19/008
- IPC分类号： G10L19/008
摘要：
An apparatus for enhancing an audio signal comprises a signal processor for processing the audio signal in order to reduce or eliminate transient and tonal portions of the processed signal and a decorrelator for generating a first decorrelated signal and a second decorrelated signal from the processed signal. The apparatus further comprises a combiner for weightedly combining the first and the second decorrelated signal and the audio signal or a signal derived from the audio signal by coherence enhancement using time variant weighting factors and to obtain a two-channel audio signal. The apparatus further comprises a controller for controlling the time variant weighting factors by analyzing the audio signal so that different portions of the audio signal are multiplied by different weighting factors and the two-channel audio signal has a time variant degree of decorrelation.
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