| 摘要 |
PURPOSE:To enable feeling representation faithfully to the intention of a player by detecting the operation speed or acceleration of an operation element according to the signal generated by an all-stroke sensing means for the moving operation of the operation element when it exceeds a specific value. CONSTITUTION:A detecting means is provided which detects the operation speed or acceleration of the operation element according to the signal generated by the all-stroke sensing means for the moving operation of the operation ele ment when it exceeds the specific value. When the key depression part 1a of a key 1 is pressed down, a laminate magnet 8 swings down, so the magnetic flux of a magnetic closed circuit varies abruptly and intermittently, and an induced current flows to a coil 10 formed at the periphery of a yoke magnet 13 alternately in a pulsating state to generate many pulses corresponding to the movement quantity without contacting. Then musical sound control parameters are varied in many steps corresponding to the number of pulses which is larger than a specific value. Consequently, the musical sound that the player intends can optionally be generated. |
