NewTek TriCaster 300 - Manual (Page 141)

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7.2.2 PROC AMP
Figure 117
The main portion of the Input Settings tab contains Proc Amp settings. These settings are
identical to those discussed in Section 7.1.2. Of course, Proc Amp settings are applied to the
individual video inputs, thus before output Proc Amp settings (which affect all sources equally).
When the Proc Amp is enabled for a specific source, a small yellow indicator is displayed in the
upper-right corner, just above the corresponding monitor in any of the three main monitor tabs.
Input Proc Amp adjustments are applied after LiveMatte is processed, which can help when
composing greenscreen shots to match a background or LiveSet. You may also notice that
changes to Proc Amp settings do affect stopped (or frozen) sources, including live camera feeds.
7.2.3 LIVEMATTE & CROP
The second tab in the Input Configuration panels is where you configure TriCaster’s powerful
realtime keying system for live production, LiveMatte.
Keying is a popular and powerful method of combining two images — whether photos, video
clips or live camera streams. The process involves eliminating a portion of the image (effectively
cutting a digital ‘keyhole’ in it) to reveal a user-defined background scene. It also plays an
important role in the workflow of LiveSet, TriCaster’s powerful virtual set technology.