LG D959 - Manual (Page 78)

77
Audio zoom
Increase sound sensitivity in the area you zoom in on and decrease noise when
recording.
1 Open the Camera application.
2 Change to video mode, tap > Audio zoom > On.
3 Tap Record to start recording.
4 Zoom in a certain area to increase sound sensitivity and decrease noise.
NOTE:
Available only in landscape view.
5 Tap to stop recording.