| 摘要 |
A sound generation device used in a public space generates tone data corresponding to a change in environment such as environmental noise, temperature, brightness, and the like. The sound generation device includes a detector for detecting environmental noise, temperature, brightness, and the like, and forms tone control data on the basis of the detected environment information. Tone parameters to be supplied to a tone generation LSI or a sound effect DSP are controlled according to the tone control data, thereby selecting and controlling a play No. of tone sources, tone color, tone volume, tempo, reverberation, and the like of tones or music tones to be generated.
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