| 摘要 |
While level of the inputted analog signal is adjusted according to a set analog gain value and then analog-digital converted and outputted, when an automatic compensation is on and a difference of the analog gain value and a target value is compensated by level adjustment in a digital amplifier, the analog gain value is displayed by a gain knob (161), and in response to an operation to turn on the automatic compensation, a present value of the analog gain value at that time is displayed as a target gain value by a mark (162a) near the analog gain value, and in response to an operation to turn off the automatic compensation, display of the target gain value is erased. |
