Samsung DVW-707/707P - Manual (Page 22)

Chapter 2 Locations and Functions of Parts and Controls
2-6
2
3 MIC (microphone) AUDIO LEVEL control
If one or both of the AUDIO IN switches are set to FRONT, you can
adjust the recording level of the microphone.
When AUDIO is set to ON in the VF DISP 2/2 page of the setup menu,
the viewfinder DISPLAY switch is set to ON, MONITOR switch is set
to CH1, you can adjust the channel-1 audio level while watching the
indication in the viewfinder.