| 摘要 |
PROBLEM TO BE SOLVED: To optimize timing-wise the parallel reproduction of audio data and displaying data, even though the combination of the time length of the audio data and the data amount of the displaying data is anyhow changed when such a display means is used that the data amount capable of displaying at one time is small. SOLUTION: By a system control means 100, an audio data memory control means 16 and a displaying data memory control means 19 are synchronistically controlled based on the management data obtained from a management data memory means 15 through a management data memory control means 14, and the displaying data corresponding to the audio data are outputted in parallel to the output of the audio data. By a display period calculating means 200, respective displaying periodsτa,τb,τc of the displaying data a, b, c are calculated from the management data of the management data memory control means 14, then the applicable display period is outputted to a displaying data process means 21 at the time of outputting each displaying datum, and the displaying datum in accordance with displaying period is processed.
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