| 摘要 |
A gaming machine comprises a sound signal output device, a plurality of attenuators, a signal bus and a speaker. The sound signal output device outputs plural sound signals including a BGM signal and a game effect sound signal in parallel. The attenuator attenuates at least the BGM signal of the plural sound signals outputted from the sound signal output device. The signal bus is adapted to input all the plural sound signals including the BGM signal attenuated in the attenuator and transmits the sound signals. The speaker converts the sound signals transmitted through the signal bus into sound waves and then turns up the sound waves.
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