When the level of the MIC input is too big, and can't be controled by the MIC input level adjustmeng potentiometer, push down this button.
When the level of the MIC input is too big, and can't be controled by the MIC input level adjustmeng potentiometer, push down this button.
话筒输入衰减按键:当话筒输入电平太大,话筒输入电平调节电位器已无法控制时,按下此键.