| 摘要 |
PROBLEM TO BE SOLVED: To provide a compression data processor where a load of a processing can be reduced and the processing can be speeded up and to provide a compression data processing method and a compression data processing program. SOLUTION: A multitrack extending device 30 is provided with a compression sound data reading part 31, a data deletion processing part 34, extension processing parts 35 and 36 and a synthesis processing part 37, When two pieces of compression sound data in an MPEG1 audio system are read by the compression sound data reading part 31, a processing for deleting a redundant part occurred when compression sound data is extended and synthesized is performed by the data deletion processing part 34, and the extension processing parts 35 and 36 perform an extension processing after the deletion processing. The synthesis processing part 37 synthesizes non-compression sound data which is thus obtained. COPYRIGHT: (C)2004,JPO
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