| 摘要 |
PURPOSE:To vary the scale of a sound to be generated in real time by providing a timbre converting means which operates in synchronism with a switch and a control means which varies the scale according to the state of a switch means. CONSTITUTION:The switch 5 which can be operated from the outside and a scale converting device 6 which operates in synchronism with the switch 5 are fitted and this external switch 5 is operated to control the scale converting device 6, which processes a sound signal sent from an internal processor 7 to vary the scale of the sound generated by a speaker 8 in real time. Consequently, when the external switch 5 is operated manually, the scale of the sound generated by the speaker 8 can be varied instantaneously in real time. |
