| Popis: |
A portable player (710) or a multi-channel home player (730) includes: a mixed signal decoding unit (711) for extracting a code string mixed with a multi-channel audio signal and representing a down mix signal and auxiliary information for returning the down mix signal to the multi-channel audio signal before being down-mixed, from a code string inputted, and decoding the code string representing the down mix signal; a signal separation processing unit (731) for separating the down mix signal obtained by decoding, according to the auxiliary information extracted, and generating an audio signal acoustically similar to the multi-channel audio signal before the down mix; and a headphone or a loudspeaker (720) for reproducing the down mix signal decoded or a loudspeaker (740) for reproducing the multi-channel audio signal separated from the down mix signal. |
