| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide more efficient encoding of multi-channel audio data content. <P>SOLUTION: A multi-channel encoder 10 which generates output signals 480, 490 together with complementary parametric data 370, 430, 450 comprises: a down-mixer for down-mixing input signals 300, 310, 320, 330, 340 to generate the corresponding output signals 480, 490; and an analyser for processing the input signals 300, 310, 320, 330, 340 to generate parameter data 370, 430, 450. The parametric data describes mutual differences between N channels of input signal to allow regenerating, during decoding, one or more of the N channels of input signals from the M channels of output signals. <P>COPYRIGHT: (C)2013,JPO&INPIT |
