| 摘要 |
PURPOSE:To take out only a song even when the recording level of an accompaniment in a channel 1 is different from that of the accompaniment in a channel 2 in a device reproducing a medium having the channel 1 containing only an accomaniment signal and the channel 2 containing the accompaniment signal and a song signal. CONSTITUTION:By a subtraction means 104, the signal of the channel 1 gainadjusted by a gain adjustment means 103 is subtracted from the signal of the channel 2. By a control means 106, the gain of the gain adjusting means 103 is controlled so that the output of the subtraction means 104 becomes minimum with a control start signal, the signal of the channel 2 and the output of the subtraction means 104 as an input. |
