4.0 MENU OPTIONS
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R699751 - DreamScaler3 User Manual
AV Lip Sync
The DreamScaler3 automatically delays the input audio to match the video processing delay. You can choose to
increase or decrease the audio delay by changing this setting. Push the Up or Down button to display the current
additional bias delay setting (default 0). Use the Up or Down button to increase or decrease the delay in
milliseconds.
4.4
Picture Controls
Brightness
This control adjusts the brightness (black level) of the overall image output from the DreamScaler3. If you turn it up
too high, it may make black look gray. In general, you should adjust this up until you see the black areas of your
display turn gray and then back it down just below that point. Default setting is 0 (midrange).
Contrast
Contrast adjusts the ratio between white and black signal levels and is effective as a gain control. The difference
between this and the Brightness control is that this adjusts the difference between the brightest and darkest part of
the image. Note that all displays have a maximum white level. Going beyond this level only “clips” the upper gray
levels and you will lose color resolution at the brighter levels. Adjust this control up until you see the brighter levels
of the image begin to wash out. At this point, back it down just below that point. The default setting is 0 (midrange).
Saturation
The DreamScaler3 allows you to control the saturation of the image independent of the display. Saturation is the
same as the “Color” control on most TVs and controls the richness of the color in the image. The default setting is 0
(midrange).
Hue
As with Saturation, hue can also be controlled independent of the display. Hue is the same as the “Tint” control
found on most TVs and controls how colors are displayed in the image. The Hue control is not available for
Component or PAL/SECAM inputs. The default setting is 0 (midrange).
Sharpness
The Sharpness setting adjusts the sharpness of the selected input signal. The default setting is 0.
Y/C Delay
Sometimes there is a lag between the Luminance (Y) and the Chrominance (Pb/Pr or Cb/Cr) of the video signal.
This causes a color “smearing” because the color component of the image is not lining up properly to the black and
white luminance component of the image. The DreamScaler3 can compensate for these errors in the source signal
by shifting the phase of the Y with respect to the C, forward or backward to align them properly.
Use the Down and Up buttons to adjust the phase and observe the effects on your display to obtain the optimal
setting. The default is 0.
Chroma Filter (Auto CUE-C)
This feature removes chroma upsampling errors (CUE) found in video sources which have been MPEG encoded
and then improperly decoded.
•
Off - No chroma filtering. Use this setting if the source does not have a CUE problem.
•
On - Chroma filtering is always on. Use this setting if the source is known to have a CUE problem.
•
Auto - Automatic chroma error detection and correction. Use this setting when you don’t know if a source has a
CUE problem. Also use this setting for all digital sources which use MPEG2 decoders (DVD players, digital
satellite receivers, and so on.) as it will also detect and correct chroma errors created by all sources of this type
Note:
The total audio delay cannot be less than zero, that is, the DreamScaler3 cannot have negative audio delay. If you
choose to decrease the automatic delay setting by a certain amount, this value could be changed by the
DreamScaler3 in situations where the DreamScaler3’s calculated delay plus the specified additional delay results in
a value less than zero.