发明公开
- 专利标题： MULTICHANNEL AUDIO SIGNAL DECODING USING DE-CORRELATED SIGNALS
- 专利标题（中）： DECODE多通道音频USING解相关信号
-
申请号： EP05807484.0申请日： 2005-10-31
-
公开(公告)号： EP1808047A1公开(公告)日： 2007-07-18
- 发明人: PURNHAGEN, Heiko , ENGDEGARD, Jonas , BREEBAART, Jeroen , SCHUIJERS, Erik
- 申请人： Coding Technologies AB , Koninklijke Philips Electronics N.V.
- 申请人地址： Döbelnsgatan 64 113 52 Stockholm SE
- 专利权人： Coding Technologies AB,Koninklijke Philips Electronics N.V.
- 当前专利权人： Coding Technologies AB,Koninklijke Philips Electronics N.V.
- 当前专利权人地址： Döbelnsgatan 64 113 52 Stockholm SE
- 代理机构： Zinkler, Franz
- 优先权： SE0402649 20041102
- 国际公布： WO2006048227 20060511
- 主分类号： H04S5/02
- IPC分类号： H04S5/02 ; G10L19/00
摘要：
A multi-channel audio signal having at least three channels can be reconstructed such, that the reconstructed channels are at least partly de-correlated from each other using a downmixed signal derived from an original multi-channel signal and a set of decorrelated signals provided by a de-correlator (101) that derives the set of de-correlated signals from the downmix signal, wherein the de-correlated signals within the set of de-correlated signals are mutually mostly orthogonal to each other, i.e. an orthogonality relation between channel pairs is satisfied within an orthogonality tolerance range.
公开/授权文献
信息查询
