| 摘要 |
PROBLEM TO BE SOLVED: To manage a processing time on a reproduction side when a multichannel speech signal is encoded with variable compressibility. SOLUTION: Predicting circuits 13D1, 13D2, and 15D1 to 15D4 and buffer selectors 14D1, 14D2, and 16D1 to 16D4 predictively encode a six-channel speech signal. A DTS generator 17 generates decoding time stamp information representative of the timing where compressed data in a decoding-side input buffer 22a are read out according to predictively encoded data amounts by channels, and a formatting circuit 19 formats the speech signal into packets each having a packet header including decoding time stamp information and user data including compressed data. COPYRIGHT: (C)2008,JPO&INPIT
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