AUDIO ENCODING Russian patent published in 2009 - IPC H04S3/00 

FIELD: communication devices.

SUBSTANCE: invention relates to encoding a multichannel audio signal, particularly encoding a multichannel signal containing first, second and third signal components. The method of encoding a multichannel audio signal containing at least, a first signal component (LF), second signal component (LR) and a third signal component (RF), involves encoding the first and second signal components using a first parametric encoder (202) to obtain the first encoded signal (L) and the first set (P2) of coding parametres. The first encoded signal and an additional signal (R) are encoded using a second parametric encoder to obtain a second encoded signal (T) and a second set (P1) of coding parametres. The additional signal is obtained from at least the third signal component, and is a multichannel audio signal in form of at least, the resultant encoded signal (T), obtained from at least, the second encoded signal, first set of coding parametres and second set of coding parametres.

EFFECT: more efficient encoding.

13 cl, 13 dwg