| 摘要 |
PURPOSE:To effectively control two systems signals by operating coefficients to first, second multipliers according to operation of a first operation key, controlling the balance between the two systems signals, operating the coefficients according to the operation of a second operation key and controlling the levels of two systems signals. CONSTITUTION:The outputs A, B of the operation keys 21, 22 are inputted to calculation blocks 27, 28, and prescribed operation are performed, and two sets of multiplication coefficients w, d imparted to the multipliers 18, 19 are obtained to be imparted to the multipliers 18, 19 according to the operation of a changeover switch 24. In the calculation block 27, the operation of w A*B, d (1-A)*B is performed, and the balance between a wet signal and a dry signal is controlled by the operation key 21, and the whole level is controlled by the operation key 22. In the calculation block 28, the operation of w A, d B is performed, and the level of the wet signal is controlled by the operation key 21, and the level of the dry signal is controlled by the operation key 22. In such a manner, a method for controlling the balance between the wet and the dry is selected, and the number of the multipliers need not increase. |
