Factors that Affect Picture Quality During Playback
QuVIS Encore Output Settings
QuVIS video servers, including the QuVIS Encore, have several settings that affect the playback picture
quality in different ways. You will want to know about these to ensure the system is always set up for the
highest quality output. Following are the software-controllable items that affect playback picture quality.
1.
Bit Depth Compatibility (OUTPUT – Video menu page)
When playing content from a QuVIS Encore and recording it on another VTR, you may need to use
the
Bit Depth
setting to match the bit depth of the output signal more closely to that of the capability
of the destination VTR. When output is
not
rounded down in this manner, the receiving VTR’s
circuitry may be unable to handle the excess data and produce lower-quality recorded images as a
result. Our recommendations for dubbing among common equipment are below.
Format
QuVIS Encore Bit Depth
Output
HDCam 8
bit
D-5 9
bit
HDCam SRW
10 bit
10 bit SMPTE
compliant
10-bit
Uncompressed HD
10-bit
2.
Dither (OUTPUT – Video menu page)
When turned ON,
Dither
inserts electronically-generated noise into the picture. This may be useful
for some displays where it may produce a sharper-looking image. It is not recommended for
production work or output to plasma monitors, projectors or VTR’s (the added noise can be
misinterpreted by their circuitry and cause a degraded image). By default,
Dither
is turned off.
3.
Analog Colorspace (OUTPUT – Analog menu page)
This control adjusts the output colorspace for your display device. If you connected the QuVIS
Encore to a monitor, projector or VTR with a confidence monitor, and the video is excessively green
or magenta-tinted, the wrong colorspace may be being used. Use this control to change the video
output colorspace on the QuVIS Encore.
4.
Genlock (OUTPUT – Video menu page)
When the QuVIS Encore plays back content, it can “reference” its video output signal either to a
master timing source or its own internal clock. The internal clock is commonly used in situations
where the QuVIS Encore is simply playing back content for a trade show, digital cinema, or
boardroom presentation, and the display device is the only other equipment connected to the QuVIS
Encore.
QuVIS Encore
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