摘要 |
<P>PROBLEM TO BE SOLVED: To enable a reproduction side to normally make reproduction even if multichannels are selectively transmitted by compression or non-compression and even if downmixing on the reproduction side is selectively permitted or prohibited. <P>SOLUTION: An ATSI includes a first identifier to indicate whether the multichannel data in an audio packet is compressed or not and a second identifier to indicate whether the downmixing of the multichannel data in stereoscopic two channels is permitted or prohibited. <P>COPYRIGHT: (C)2003,JPO |