| 摘要 |
A CPU of a game machine compares the predicted number of samples in a streaming reproduction and the actual number of samples during execution of the reproduction of sequence data of the BGM in a step S 41 in response to a beat signal detected in a step S 35 . When the compared error is positive, it is considered that the reproduction of sequence data of the BGM lags behind to increase a tempo of the sequence data reproduction in a step S 47 . When the error is negative, it is considered that the MIDI reproduction leads to decrease the tempo of the sequence data reproduction in a step S 49.
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