- 专利标题： AUDIO DECODER SUPPORTING A SET OF DIFFERENT LOSS CONCEALMENT TOOLS
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申请号： EP17201142.1申请日： 2017-11-10
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公开(公告)号： EP3483878A1公开(公告)日： 2019-05-15
- 发明人: TOMASEK, Adrian , RAVELLI, Emmanuel , SCHNELL, Markus , TSCHEKALINSKIJ, Alexander , SCHNABEL, Michael , SPERSCHNEIDER, Ralph
- 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： Schenk, Markus
- 主分类号： G10L19/005
- IPC分类号： G10L19/005
摘要：
An assignment of one of phase set of different loss concealment tools of an audio decoder to a portion of the audio signal to be decoded from a data stream, which portion is affected by loss, that is the selection out of the set of different loss concealment tools, may be made in a manner leading to a more pleasant loss concealment if the assignment/selection is done based on two measures: A first measure which is determined measures a spectral position of a spectral centroid of a spectrum of the audio signal and a second measure which is determined measures a temporal predictability of the audio signal. The assigned or selected loss concealment tool may then be used to recover the portion of the audio signal.
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