Proc amp – Grass Valley NewsEdit XT v.5.5 User Manual
Page 284
Appendix Video
Effects
282
Digital News Production
Proc Amp
You adjust video levels using the Proc Amp effect. You use this effect either as
a standalone effect or in conjunction with the Resize or Key Shape effects.
You use four controls — Gain, Chroma, Setup, and Hue — to alter the entire
image or part of the video image.
One way to use the Proc Amp effect is to spotlight an image. You create a key
shape within a single track of video, check the Background checkbox, and
increase the Gain in order to bring out the spotlight within the video image.
Option
Range
Description
Gain
-100 to +100
-100 appears black and +100 washes out with brightness.
0 is the default.
Chroma
-100 to +100
-100 appears black and white while +100 boosts the color scheme. 0 is
the default.
Setup
-100 to +100
-100 crushes the black levels while +100 increases the brightness. 0 is
the default.
Hue
-180 to +180
The sweep from -180 to 180 cycles through the entire spectrum of
colors altering the image.
Invert
On or Off
Gives a film negative look to the image by inverting all of the colors
within the video image.
Background
On or Off
Within a Resize or Key Shape effect, lets you adjust the background
video layer.