47
8.4.1 Program
The
Program
monitor could hardly be more important, hence it’s prominent default location at upper-left on the
Live Desktop.
FIGURE 38
Normally,
t
he
Program
monitor shows what AV-HLC100 is displaying to your principal viewing audience at any
moment. Thus it displays the
BKGD
video layer as well as any
Overlay layers
displayed above it (FTB, or ‘Fade
to Black’, constitutes a final, completely opaque video layer that completely hides all other output).
Note: By default, Program output is sent to both SDI 1, the primary NDI output channel, labeled “MIX
1”, and also the “AUX” NDI output.
Please notice that a semi-transparent red border surrounds the Program monitor. A similar red border is
shown around the viewport for any Switcher source that is currently visible on Program output. This is
referred to as ‘tally’ notification, which is also supplied to upstream NDI video sources that support tally,
and the hardware
Tally port
on AV-HLC100’s backplane (see Section 6.4).
8.4.2 Preview and Source Viewports
The
Live Desktop
also prominently displays the
Look Ahead Preview
monitor (labeled simply
Preview
) at upper-right.
The
Look Ahead Preview
is versatile and powerful. Instead of showing just one video source (the
Preview
row selection), it displays the final result of a
Cut
operation performed using the
Control Surface.
•
When
BKGD
is delegated,
the
Preview
monitor will show the source selected on the
Preview
row on the
Control Surface
.
•
Overlay layers
are shown on
Preview
when they will be displayed after the next transition.
•
When
BKGD
is not delegated on the
Control Surface
, that layer will not change during a transition
(initiated using the
Control Surface
). Consequently, in this case the
Preview
and
Program
monitors share identical backgrounds.
Hint: The background video layer is always included in any Live Desktop transition, but the Control
Surface allows you to assign the CUT, AUTO and Fader lever controls independently to the background
layer, Overlay layers, or any combination of these, using the delegate buttons beside the fader lever.
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