Communications Specialties Scan Do Pro II Panduan Pengguna - Halaman 10
Jelajahi secara online atau unduh pdf Panduan Pengguna untuk Konverter Media Communications Specialties Scan Do Pro II. Communications Specialties Scan Do Pro II 15 halaman. High resolution computer-to-video scan converter with genlock and optional sdi output (scan do pro ii/d)
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USE HIGH GRADE VIDEO
TAPE:
PAY ATTENTION TO
YOUR BORDERS:
ELIMINATE FLICKER:
USE S-VIDEO:
Page 10
When making a VCR recording, use a name brand videotape with a
"Pro" or "Broadcast" grade. An S-VHS tape can also be used, even if
you're only making a standard VHS recording. Also, record using the
fastest possible speed (shortest time mode). You will have less noise and
tape jitter in your recording.
TV and video signals are designed to bleed off the edges of the screen.
This means that when a computer picture is converted to a TV standard,
the borders of your picture will be lost. In order to avoid this cropping
effect, you can use the Zoom feature on Scan Do Pro II to display your
image at 85%. If you would prefer to use the bleeding effect in your final
display, be sure to design your presentation with ample borders surround-
ing the "live area" of your image. That way, when the cropping does
occur, no critical part of your picture will be lost.
By far, the most annoying effect that occurs when a computer image
is converted to video is "flicker." This rapid flashing may appear
throughout the screen or localized in one particular area, and is due to the
fact the TV monitors, unlike computer monitors, draw the even and odd
lines within the picture in alternating passes. This effect is most
noticeable on thin horizontal lines – particularly, bright lines against a
dark background.
The four-step anti-flicker filter in Scan Do Pro II employs an advanced
design technique to overcome this annoying problem with only a very
slight loss in vertical detail. When using this feature, experiment with
different settings, as you will receive the maximum benefit from differ-
ent levels depending on the type of visual you are displaying. You may
also want to keep in mind when designing your presentation that the less
thin, horizontal lines you use in your image, the less likely that any flicker
will be visible.
Almost all new, larger screen commercial TVs have an S-Video jack.
S-Video is a superior form of the standard TV video signal, in that the
brightness and color components of the image are separated into two
separate signals. This results in far fewer distortions and noticeably
superior image quality. So, if your TV or VCR is S-Video equipped,
definitely use the S-Video output from Scan Do Pro II. You'll see a
difference.
Scan Do Pro II User's Manual