发明公开
EP1869667A1 MULTI-CHANNEL HIERARCHICAL AUDIO CODING WITH COMPACT SIDE-INFORMATION
审中-公开
与紧凑式侧信息的分层MEHRKANALTONKODIERUNG
- 专利标题： MULTI-CHANNEL HIERARCHICAL AUDIO CODING WITH COMPACT SIDE-INFORMATION
- 专利标题（中）： 与紧凑式侧信息的分层MEHRKANALTONKODIERUNG
-
申请号： EP06706552.4申请日： 2006-02-01
-
公开(公告)号： EP1869667A1公开(公告)日： 2007-12-26
- 发明人: HOELZER, Andreas , HERRE, Juergen , ROEDEN, Jonas , PURNHAGEN, Heiko , KJOERLING, Kristofer , ENGDEGARD, Jonas , BREEBAART, Jeroen, Koninklijke Philips Elec. N.V. , SCHUIJERS, Erik, Koninklijke Philips Elec. N.V. , OOMEN, Werner, Koninklijke Philips Elec. N.V. , VILLEMOES, Lars
- 申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Coding Technologies Sweden AB , Koninklijke Philips Electronics N.V.
- 申请人地址： Hansastrasse 27c 80686 München DE
- 专利权人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.,Coding Technologies Sweden AB,Koninklijke Philips Electronics N.V.
- 当前专利权人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.,Coding Technologies Sweden AB,Koninklijke Philips Electronics N.V.
- 当前专利权人地址： Hansastrasse 27c 80686 München DE
- 代理机构： Zinkler, Franz
- 优先权： US314711 20051221; US671544P 20050415
- 国际公布： WO2006108462 20061019
- 主分类号： G10L19/00
- IPC分类号： G10L19/00 ; H04S3/00
摘要：
A parametric representation of a multi-channel audio signal describes the spatial properties of the audio signal well with compact side information when a coherence information, describing the coherence between a first and a second channel, is derived within a hierarchical encoding process only for channel pairs including a first channel having only information of a left side with respect to a listening position and including a second channel having only information from a right side with respect to a listening position. As within the hierarchical process the multiple audio channels of the audio signal are downmixed iteratively into monophonic channels, one can pick the relevant parameters from an encoding step involving only channel pairs carrying the information needed to describe the spatial properties of the multi-channel audio signal.
公开/授权文献
信息查询
