Sony DNW-7/7P Operation Manual page 30

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.
2
When AUDIO is set to ON in the VF DISPLAY 2/2 page of the setup
menu and the viewfinder DISPLAY switch is set to ON, adjust the
channel-1 audio level, watching the indication in the viewfinder.
2-6
Chapter 2 Locations and Functions of Parts and Controls