发明授权
US08612214B2 Apparatus and a method for generating bandwidth extension output data
有权
用于产生带宽扩展输出数据的装置和方法
- 专利标题： Apparatus and a method for generating bandwidth extension output data
- 专利标题（中）： 用于产生带宽扩展输出数据的装置和方法
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申请号： US13004264申请日： 2011-01-11
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公开(公告)号： US08612214B2公开(公告)日： 2013-12-17
- 发明人: Max Neuendorf , Bernhard Grill , Ulrich Kraemer , Markus Multrus , Harald Popp , Nikolaus Rettelbach , Frederik Nagel , Markus Lohwasser , Marc Gayer , Manuel Jander , Virgilio Bacigalupo
- 申请人： Max Neuendorf , Bernhard Grill , Ulrich Kraemer , Markus Multrus , Harald Popp , Nikolaus Rettelbach , Frederik Nagel , Markus Lohwasser , Marc Gayer , Manuel Jander , Virgilio Bacigalupo
- 申请人地址： DE Munich
- 专利权人： Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
- 当前专利权人： Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
- 当前专利权人地址： DE Munich
- 代理机构： Perkins Coie LLP
- 代理商 Michael A. Glenn
- 主分类号： G10L19/00
- IPC分类号： G10L19/00
摘要：
An apparatus for generating bandwidth extension output data for an audio signal has a noise floor measurer, a signal energy characterizer and a processor. The audio signal has components in a first frequency band and components in a second frequency band, the bandwidth extension output data are adapted to control a synthesis of the components in the second frequency band. The noise floor measurer measures noise floor data of the second frequency band for a time portion of the audio signal. The signal energy characterizer derives energy distribution data, the energy distribution data characterizing an energy distribution in a spectrum of the time portion of the audio signal. The processor combines the noise floor data and the energy distribution data to obtain the bandwidth extension output data.
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