| 摘要 |
PROBLEM TO BE SOLVED: To provide a controller which can change at least two parameters, such as output levels, in the low tone range and the high tone range of an acoustic system. SOLUTION: The controller provides a control part (a), which is constituted of a turning knob 4 provided with two independent zones 2, 3 with different conductivities and (b) in which parameter is to be changed, when the knob is turned, is decided on the basis of the position of a finger on the knob touched by an operator. |
