| 摘要 |
The MIDI reproducing block has such a sound source as a synthesizer and synthesizes and reproduces electronic sounds sequentially according to entered MIDI playing information, thereby generating MIDI sound signals of an accompaniment music. Generated MIDI sound signals are supplied to the mixer. The audio reproducing block reproduces audio sound signals according to entered audio information. Generated audio sound signals are supplied to the mixer. The tempo change time setting block sets a tempo change time in entered tempo change information. Tempo change information in which a tempo change time is set is supplied to both MIDI reproducing block and audio reproducing block. The mixer mixes supplied MIDI sound signals with audio sound signals, thereby generating reproduction signals, then outputs the signals after the sound volume is adjusted. Generated reproduction signals are then supplied to the speaker. The speaker then outputs supplied reproduction signals as sounds. Thus, MIDI sound signals are synchronized with audio sound signals accurately such way when in reproducing.
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