| 摘要 |
PROBLEM TO BE SOLVED: To provide a time-sequential signal encoding apparatus and recording medium in which digitally edited high-definition audio work data can be efficiently reversibly compressed. SOLUTION: Time-sequential sample streams are divided into odd-numbered and even-numbered streams, a differential value between an odd-numbered sample and an average of both neighboring even-numbered samples and a differential value between an even-numbered sample and an average of both neighboring odd-numbered samples are calculated, the stream with continuous smaller differential values is relocated as a main sample stream and the other stream is relocated as a sub sample stream. With respect to the relocated main sample stream and sub sample stream, a predictive error value based on a linear predictive error is obtained, and variable length encoding is performed. COPYRIGHT: (C)2004,JPO&NCIPI
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