发明名称 |
DEVICE AND METHOD FOR GRADUATED ENCODING OF A MULTICHANNEL AUDIO SIGNAL BASED ON A PRINCIPAL COMPONENT ANALYSIS |
摘要 |
<p>The invention concerns a system and a method for graduated encoding of a multichannel audio signal including a transformation by principal component analysis (PCA) of at least two channels (L, R) of said audio signal into a principal component and at least one residual sub-component (r) defined by rotation by a transformation parameter (?), including the following steps: forming a residual structure (Sf<SUB>r</SUB>) per frequency sub-band from said at least one residual sub-component (r); and defining an encoded audio signal (SC) comprising said principal component (CP), at least one residual structure (Sf<SUB>r</SUB>) of a frequency sub-band and said transformation parameter (?).</p> |
申请公布号 |
WO2007104883(A1) |
申请公布日期 |
2007.09.20 |
申请号 |
WO2007FR50897 |
申请日期 |
2007.03.08 |
申请人 |
FRANCE TELECOM;BRIAND, MANUEL;VIRETTE, DAVID |
发明人 |
BRIAND, MANUEL;VIRETTE, DAVID |
分类号 |
G10L19/00;G10L19/008;G10L19/14;G10L19/24 |
主分类号 |
G10L19/00 |
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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