NewTek TriCaster TC1 (2 RU) - Manual (Page 94)

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L ISTEN O NLY
The Listen Only switch allows you to include a source in the Multicam group without adding its own feed to
the group evaluation. Thus, a camera trained on a giant purple dinosaur can be automatically corrected
without disproportionately biasing the group evaluation and
Auto Color correction. Alternatively, one might
enable Multicam for a number of sources, turning Listen Only on for all but one camera – effectively making
that camera the color reference all other cameras in the group will follow.
Note: The Proc Amp, discussed next, is downstream of the Auto Color system. This allows you to apply further
manual color adjustments to your individual sources, whether for fine tu
ning or to achieve a specific “look”.
P ROC A MP
FIGURE 79
A switch at the top of the Proc Amp control group toggles the feature on/off. Other controls operate as
follows:
• Brightness : Adjustment range from -50 to +50 IRE (the default being 0).
As reference, the full luminance range of the visible portion of a video signal can be thought of as ‘100
IRE units’ (named for the Institute of Radio Engineers) – ignoring minor regional variations.
• Contrast – Adjustment range from 25 - 400% (default 100%).
• Hue – Adjustment range between -180° and +180°. Adjusts the master color of the video signal from the
attached source, swinging the entire image through the color wheel’s spectrum.
• Saturation – Adjustment range from 0- 500%. Zero saturation results in a ‘black and white’ picture;
increased saturation results in richer colors. High saturation values can exaggerate the color portion of
the signal.
(Note that over-saturated colors are considered illegal for broadcast transmission and may result in
display problems on some devices.)
Hint: Proc Amp adjustments are applied downstream of LiveMatte, which can help when composing
greenscreen shots to match a background or LiveSet.