Operation Manual

Niagara SCX User Guide
ViewCast 45
Tab
Description
based applications or the response curves of computer
monitors.
— Therefore, you often need a correction inverse to the original
bias and you may want to tune for the characteristics of a
particular monitor.
 To enable:
— Check the enable field.
— When the setting equals 1.00, you make the response
characteristics and the bandwidth identical to the original
picture.
 When you disable the gamma correction filters:
— Set the gamma correction value to exactly 1.00.
— The software-based gamma filter works in pass-through mode
with no effect on the video and no processing bandwidth use.
— Uncheck the Gamma checkbox.
 When you enable gamma correction, the text box and graphic show
the factor applied.
 If you run preview video while adjusting the filter, you see your
adjustment effects interactively.
 You can use one of three methods to adjust the gamma correction
value:
(1) Directly enter text in the numeric text box.
(2) Click [+] and [-].
(3) Select Signal field (NTSC, PAL, or SECAM) from the options list.
 Gamma correction applies to all filters and output pins on each
device.
 The gamma correction can be different for different physical devices.
NOTE: These values represent the inverses of the gamma
bias that you applied at the video source per the video
standard so the resulting video becomes gamma-
neutral.
Tuning Utilities
 Access the Video Diagnostics (Tuning Utilities) for a selected card.
NOTE: Refer to Chapter 11: Tuning Utilities for added
diagnostics data.
Audio Settings
 View the input source options for selected audio devices (Figure 59).
 Makes left and right volume level adjustments available if the audio
capture device supports them.
 Fields remain available whether device runs or remains idle.