| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine having the function of adjusting the presentation sound, nonexistent in conventional technologies, and a sound volume adjusting method thereof. SOLUTION: The game machine comprises a sound signal output device 201, a plurality of first attenuators 204a, 204b, 204c and 204d, an output bus 205, and a sound output device 212. The sound signal output device 201 outputs a plurality of sound signals including BGM signals and game effective sound signals in series. The first attenuators 204a, 204b, 204c and 204d attenuate at least BGM signals among the plurality of sound signals output from the sound signal output device 201. The output bus 205 permits input of all the plurality of sound signals including the BGM signals attenuated by the first attenuators 204a, 204b, 204c and 204d, and transmits the sound signals. The sound output device 212 converts the sound signals transmitted through the output bus to sound waves and amplifies the sound. COPYRIGHT: (C)2008,JPO&INPIT
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