The present invention at least two channels of the multi-channel audio signal by the principal component analysis (PCA) ( L, relates R) with a rating system and a method of encoding multi-channel audio signal comprises converting the main component and the conversion parameters ( ) at least one of the remaining sub- component (r) defined by the rotation by , the encoding method comprising: forming the at least one remaining sub ingredient (r) for each frequency sub-bands from the remaining structure (Sf r ); And the principal components (CP), at least one frequency subband of the other structure (Sf r ) and the step of defining said transformation parameters , including the code in the ( ) the audio signal (SC) includes .
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机译：本发明通过具有评级系统的主成分分析（PCA）（L，涉及R）对多声道音频信号的至少两个声道进行编码，并且对多声道音频信号进行编码的方法包括转换主要分量和转换旋转方法定义的剩余子成分（r）中的至少一个参数（），该编码方法包括：从剩余结构（Sf < Sub> r ）;以及主要成分（CP），其他结构的至少一个子频带（Sf r ）以及定义所述变换参数的步骤，包括（）中的代码音频信号（SC）包括。
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