Communications Specialties Scan Do 1024 Manuale d'uso - Pagina 11
Sfoglia online o scarica il pdf Manuale d'uso per Convertitore multimediale Communications Specialties Scan Do 1024. Communications Specialties Scan Do 1024 16. Computer to video scan converter
Stampa la paginaSo often we are impressed with the vivid colors and ultra-
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sharp detail we see on the computer monitor. However, TVs
and video monitors are not this pure, especially if they are
displaying a video signal that was "beat up" by a VCR
recording. While creating the image on your computer,
preview it on a TV or video monitor connected to Scan Do
1024 to see what the end result will look like to avoid
surprises later.
When making a VCR recording, use a name brand "Pro" or
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"Broadcast" grade tape. An S-VHS tape can also be used
even if you are only making a standard VHS recording. Also,
record using the fastest speed (shortest time mode). You will
have less noise and tape jitter in your recording.
Almost all TVs and video monitors overscan the image
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resulting in some of the picture being "cropped" off the edges
of the picture tube. The UNDERSCAN mode of Scan Do
1024 will shrink the image to compensate for this overscan
which will vary in amount from one TV/monitor to another. In
order to insure that all the useful information is still displayed
on the TV/monitor, make sure all text is located at least 5%
in from the sides, top and bottom.
By far the most annoying effect that occurs when a computer
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image is converted to video is "flicker". This rapid flashing of
the image's brightness can appear to be pervasive throughout
the screen or localized to one particular area. It is most
noticeable on thin horizontal lines, particularly, bright lines
against a dark background. It is not seen on computer
monitors because all the horizontal lines that make up the
image are drawn on the screen in one pass from top to bottom
60 or 70 times a second. When the same image is converted
to video a single line will only be drawn on the screen either
30 (NTSC) or 25 (PAL) times a second. The flicker you see
is the same line being drawn at this rapid rate, but not rapid
enough to blur together. The anti-flicker filter in Scan Do
1024 employs an advanced design technique to overcome
this annoying problem with only a very slight loss in vertical
detail.
Scan Do 1024 User's Manual
Page 11