ADJUSTMENT OPERATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an adjustment operation device in which rapid decrease in a sound volume is realized while avoiding the event of sudden sound volume increase. SOLUTION: The device is provided with an operation means 9, by which the adjustment direction is changed increasingly or decreasingly by the operation of the user and an adjustment change input is received in response to a manipulated variable by the user. A control means 4 receives a signal in response to the operation input from the operation means 9 to generate an adjustment control signal to apply adjustment control to an adjustment object and the control means 4 differentiates the changing speed of the adjustment revision amount in the increasing direction from that in the decreasing direction in response to the user operation of the operation means 9.