Adjusting the Audio Recording Level Automatically
Set the channel for which you want to adjust the audio recording level automatically to [Auto] on the [Audio] page of the web menu or using [Audio] > [Audio Input] > [CH1 Level Control] to [CH4 Level Control] in the camera menu.
The channels specified for auto adjustment are indicated by an (Auto) icon beside the corresponding channels on the (Audio) tab of the live operation screen.