| 摘要 |
PROBLEM TO BE SOLVED: To enables a reproduction side to perform reproduction normally even when multiple channels are selectively transmitted on a compression or non-compression basis or down mixing on the reception side is selectively permitted or inhibited. SOLUTION: ATSI includes a 1st identifier showing whether multichannel data in an audio packet are compressed or not and a 2nd identifier indicating whether down mixing of the multichannel data into two stereophonic channels is permitted or inhibited. Thus, even when data transmitted while the identifier showing whether or not multichannel data are compressed and the identifier indicating whether down mixing of the multichannel data into two stereophonic channels is permitted or inhibited are both packetized are received, the data can be decoded and reproduced normally. COPYRIGHT: (C)2004,JPO&NCIPI
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