发明名称 |
DEVICE AND METHOD FOR SCALABLE ENCODING OF A MULTICHANNEL AUDIO SIGNAL BASED ON A PRINCIPAL COMPONENT ANALYSIS |
摘要 |
<p>A system and a method for the scalable coding of a multi-channel audio signal comprising a principal component analysis (PCA) transformation of at least two channels (L, R) of the audio signal into a principal component (CP) and at least one residual sub-component (r) by rotation defined by a transformation parameter (θ), comprising the following steps: formation of a frequency subband-based residual structure (Sfr) on the basis of the at least one residual sub-component (r), and definition of a coded audio signal (SC) comprising the principal component (CP), at least one residual structure (Sfr) of a frequency subband and the transformation parameter (θ).</p> |
申请公布号 |
EP2002424(A1) |
申请公布日期 |
2008.12.17 |
申请号 |
EP20070731713 |
申请日期 |
2007.03.08 |
申请人 |
FRANCE TELECOM |
发明人 |
BRIAND, MANUEL;VIRETTE, DAVID |
分类号 |
G10L19/008;G10L19/00;G10L19/24 |
主分类号 |
G10L19/008 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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