Audio Signal Processing System

• Main Authors: AISO MASAR, OKABAYASHI MASAAKI, HAGIWARA HIDEKI
• Format: Patent
• Language: Chinese; English
• Published: 04.01.2017
• Subjects: BASIC ELECTRONIC CIRCUITRY; CONTROL OF AMPLIFICATION; DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PUBLIC ADDRESS SYSTEMS

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. 本发明中，根据设置的模拟增益值调整输入的模拟信号的电平，然后进行模数转换并输出，如果自动补偿开启，则在模拟增益值和目标值之间的差异通过数字放大器中的电平调整进行补偿的情况下，通过增益旋钮(161)显示模拟增益值，并且响应于开启自动补偿的操作，通过模拟增益值附近的标记(162a)将此时模拟增益值的当前值显示为目标增益值，并且响应于关闭自动补偿的操作，擦除目标增益值的显示。