发明公开
EP2951828A1 DECODER FOR GENERATING A FREQUENCY ENHANCED AUDIO SIGNAL, METHOD OF DECODING, ENCODER FOR GENERATING AN ENCODED SIGNAL AND METHOD OF ENCODING USING COMPACT SELECTION SIDE INFORMATION
审中-公开
解码器，用于生成FREQUENZVERBESSERTEN音频信号方法的解码，编码器，用于产生编码信号和方法的编码为基础的选择紧凑式侧信息
- 专利标题： DECODER FOR GENERATING A FREQUENCY ENHANCED AUDIO SIGNAL, METHOD OF DECODING, ENCODER FOR GENERATING AN ENCODED SIGNAL AND METHOD OF ENCODING USING COMPACT SELECTION SIDE INFORMATION
- 专利标题（中）： 解码器，用于生成FREQUENZVERBESSERTEN音频信号方法的解码，编码器，用于产生编码信号和方法的编码为基础的选择紧凑式侧信息
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申请号： EP14701550.7申请日： 2014-01-28
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公开(公告)号： EP2951828A1公开(公告)日： 2015-12-09
- 发明人: NAGEL, Frederik , DISCH, Sascha , NIEDERMEIER, Andreas
- 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： US201361758092P 20130129
- 国际公布： WO2014118155 20140807
- 主分类号： G10L21/0388
- IPC分类号： G10L21/0388
摘要：
A decoder for generating a frequency enhanced audio signal (120), comprises: a feature extractor (104) for extracting a feature from a core signal (100); a side information extractor (110) for extracting a selection side information associated with the core signal; a parameter generator (108) for generating a parametric representation for estimating a spectral range of the frequency enhanced audio signal (120) not defined by the core signal (100), wherein the parameter generator (108) is configured to provide a number of parametric representation alternatives (702, 704, 706, 708) in response to the feature (112), and wherein the parameter generator (108) is configured to select one of the parametric representation alternatives as the parametric representation in response to the selection side information (712 to 718); and a signal estimator (118) for estimating the frequency enhanced audio signal (120) using the parametric representation selected.
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