Nikon D6 Reference Manual page 974

Audio Output
Choose the device used for voice memo playback.
Option
[Speaker/
%
headphones]
& [HDMI]
( [Off]
922 B The Setup Menu: Camera Setup
Voice memos are
played back over
headphones (if
connected) or the
camera's built-in
speaker.
Press 1 or 3 to
•
choose a volume between [1] and [15].
• Press J to save changes and exit.
Voice memos are output to the HDMI terminal at a
fixed volume.
Voice memos cannot be played even using the
Fn3 ( C ) button. b icons are displayed when
photographs for which memos exist are viewed in
the monitor.
Description