VBrick Systems VB4000, VB6000, VB5000 manual reduces the saturation

	WM Configuration
Closed Caption	Available when you select Video CC Enabled for Closed Caption.
Max BitRate	Defines the maximum bit rate at which closed captions are displayed.
	A higher bit rate is smoother because a smaller number of new
	characters are displayed each time the captions are refreshed—but the
	entire field is refreshed more often. This provides a better user
	experience but requires more bandwidth. The recommended default
	value of 13 kbps generally provides a good compromise between high
	quality closed caption display and bandwidth. Use a lower setting
	where bandwidth is an issue, keeping in mind that data will be lost if
	you exceed available bandwidth; use the highest setting for the best
	user experience if bandwidth is not an issue. All scrolling settings
	display a maximum of four lines at a time.

•No Scroll – only one line is displayed at a time. Difficult to read but recommended for use with third-party indexing applications.

•2.5 kbps.

•3.7 kbps.

•5.6 kbps.

•13 kbps (default).

•50 kbps.

Luminance	0–255. Default = 128. The luminance is the information about the
	varying light intensity of an image, which is best described as
	brightness.
Contrast	0–127. Default = 64. The contrast is the range of light-to-dark values
	of an image that are proportional to the voltage differences between
	the black and white levels of the signal.
Saturation	0–127. Default = 64. The saturation is the spectral purity or intensity
	of a color.
Hue	-128–127. Default = 0. The hue is the attribute by which a color may
	be identified within the visible spectrum. Hue refers to the spectral
	colors of red, orange, yellow, green blue and violet. Note: Adding hue
	reduces the saturation.
Bottom Blackout	Some files include additional information that results in undesirable
Area	artifacts at the bottom of the video frame. This option blacks out an
	area at the bottom of the player window—not a certain number of
	lines. Be sure to test your results when using this option.
Meta Data Enable	When metadata is enabled a new field will appear on the screen
	allowing the operator to insert metadata strings into the video as Script
	commands. The normal use of metadata is to allow accompanying
	synchronized URL references to be displayed in rich media
	applications. The Microsoft Windows Media player has the capability
	of extracting the metadata references and presenting them to an
	appropriate application. See the Meta Data String examples below.
	Meta Data must be enabled if you are using your WM Appliance with
	VBrick's VBPresenter application. See the VBPresenter User Guide for
	more information.

VBrick WM Appliance Admin Guide 27