| 摘要 |
PROBLEM TO BE SOLVED: To simultaneously set plural operator levels at the time of simulating an FM sound source, etc., in a personal computer. SOLUTION: Group buttons 31 to 36 that designates a slider that works with in accordance with sliders 51 to 56 which set each operator level. When a user sets a state in which a lamp is turned on by clicking a group button 31 to 36 that corresponds to a slider he wants to work by a mouse and operates any slider, the operation quantity of other sliders whose group buttons are turned on is worked with and changed. |
