NewTek TriCaster 40 User Manual page 18

The Smoothness control lets you blend the
foreground smoothly
background.
When overlaying the keyed source on another
image, this helps produce a seamless composition.
The Spill Suppression controls work in similar fashion, but operate
on key color that is unintentionally reflected or 'spilled' onto the
foreground subject. (It's very common for a little green spill to occur on the
shoulders of a person in a greenscreen shot, for example.)
It is also very common for a greenscreen shot to have unintentional inclusions that remain after the base
chromakey process is applied, but which need to be removed along with the background. Common examples
include microphones or lighting fixtures dangling from above, or perhaps a harsh crease, blemish or tear in the
background screen.
Hint: Keyed sources are useful in the DSK (Down Stream Keyer) channels on the main Switcher or as layers in
Virtual Input compositions. These features are discussed in Chapter 3 .
The Crop tools in this tab can be used to remove such unwanted 'garbage' from the scene, or for other creative
purposes. The four numeric controls in this group allow you to define independent margins for the frame.
Simply drag the mouse left or right on the number fields to adjust them, or double-click the field to type a new
value.
Notice that enabling Proc Amp, LiveMatte, or Crop settings for any source results in an
indicator being illuminated in the titlebar of its monitor. Click these 'lights' to toggle the
feature on or off without opening the larger configuration panel.
Figure 14
Configure all connected external video sources in this manner. Afterward, you should be able to view them on
their respective input monitors.
AUDIO
Audio input configuration is similar. Click the Audio Mixer tab to access the controls for audio Inputs 1 and 2
along with other audio sources). Generally, consumer devices (such as a CD player or inexpensive audio mixer)
deliver 'line level' audio. TriCaster's Input 1, representing the two 'RCA' (a.k.a., 'cinch plug') inputs on the front
panel is devoted to this type of audio source.
into the transparent
Figure 13
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