发明公开
EP3011558A1 APPARATUS AND METHOD FOR GENERATING AN ADAPTIVE SPECTRAL SHAPE OF COMFORT NOISE
有权
VORRICHTUNG UND VERFAHREN ZUR ERZEUGUNG EINERANPASSUNGSFÄHIGENSPEKTRALFORM VON KOMFORTRAUSCHEN
- 专利标题： APPARATUS AND METHOD FOR GENERATING AN ADAPTIVE SPECTRAL SHAPE OF COMFORT NOISE
- 专利标题（中）： VORRICHTUNG UND VERFAHREN ZUR ERZEUGUNG EINERANPASSUNGSFÄHIGENSPEKTRALFORM VON KOMFORTRAUSCHEN
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申请号： EP14732194.7申请日： 2014-06-23
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公开(公告)号： EP3011558A1公开(公告)日： 2016-04-27
- 发明人: SCHNABEL, Michael , MARKOVIC, Goran , SPERSCHNEIDER, Ralph , LECOMTE, Jérémie , HELMRICH, 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： EP13173154 20130621; EP14166998 20140505
- 国际公布： WO2014202786 20141224
- 主分类号： G10L19/005
- IPC分类号： G10L19/005 ; G10L25/90 ; G10L19/09
摘要：
An apparatus for decoding an encoded audio signal to obtain a reconstructed audio signal is provided, having: a receiving interface for receiving one or more frames, a coefficient generator, and a signal reconstructor. The coefficient generator is configured to determine one or more first audio signal coefficients, and one or more noise coefficients. Moreover, the coefficient generator is configured to generate one or more second audio signal coefficients, depending on the one or more first audio signal coefficients and depending on the one or more noise coefficients. The audio signal reconstructor is configured to reconstruct a first portion of the reconstructed audio signal depending on the one or more first audio signal coefficients and the audio signal reconstructor is configured to reconstruct a second portion of the reconstructed audio signal depending on the one or more second audio signal coefficients, if the current frame is not received by the receiving interface or if the current frame being received by the receiving interface is corrupted.
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