发明公开
EP2311035A1 LOW BITRATE AUDIO ENCODING/DECODING SCHEME WITH COMMON PREPROCESSING
有权
音频编码/解码方案LOW BIT WITH共用预处理RATE
- 专利标题： LOW BITRATE AUDIO ENCODING/DECODING SCHEME WITH COMMON PREPROCESSING
- 专利标题（中）： 音频编码/解码方案LOW BIT WITH共用预处理RATE
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申请号： EP09793882.3申请日： 2009-07-06
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公开(公告)号： EP2311035A1公开(公告)日： 2011-04-20
- 发明人: GRILL, Bernhard , BAYER, Stefan , FUCHS, Guillaume , GEYERSBERGER, Stefan , GEIGER, Ralf , HILPERT, Johannes , KRAEMER, Ulrich , LECOMTE, Jeremie , MULTRUS, Markus , NEUENDORF, Max , POPP, Harald , RETTELBACH, Nikolaus , NAGEL, Frederik , DISCH, Sascha , HERRE, Juergen , YOKOTANI, Yoshikazu , WABNIK, Stefan , SCHULLER, Gerald , HIRSCHFELD, Jens
- 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： US79861 20080711; EP08017662 20081008; EP09002272 20090218
- 国际公布： WO2010003617 20100114
- 主分类号： G10L19/14
- IPC分类号： G10L19/14
摘要：
An audio encoder comprises a common preprocessing stage, an information sink based encoding branch such as spectral domain encoding branch, a information source based encoding branch such as an LPC-domain encoding branch and a switch for switching between these branches at inputs into these branches or outputs of these branches controlled by a decision stage. An audio decoder comprises a spectral domain decoding branch, an LPC-domain decoding branch, one or more switches for switching between the branches and a common post-processing stage for post-processing a time-domain audio signal for obtaining a post-processed audio signal.
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