| 摘要 |
PURPOSE: A multi-track data play method using a plurality of codecs is provided to change internal setting and format by using different codecs or the same codec depending on the data property in each track. CONSTITUTION: Which chunk corresponds to a current playing location is determined. The chunk is decoded. An unnecessary part in the decoded data is excluded. A sound source file is played. One or more information among size information or reproduction time information of a plurality of original part sound source units composing a track original sound source unit are included in the chunk corresponding to the original part sound source unit.
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