Videonics PowerScript PS4000S, Инструкция по эксплуатации

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Chapter 6 Using PowerScript
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The following table shows resulting speeds (in fractional and multiples of the scan rate)
for the acceptable
Speed values. Note that the results are shown for the NTSC/525 and
PAL/625 PowerScript models.
Start/Stop Options
Use these options to control where the first and/or last item in the rolling or crawling
page appears on the screen.
Duration Target
Use this option when you want a roll or crawl to last a specific amount of time. Enter a
value indicating the number of seconds you want to allocate for the roll or crawl. For
example, if you want the effect to last for 12 seconds, enter that value in the text box.
Duration Matching
Duration Matching lets you specify a method you want PowerScript to use in attempting
to meet the target you have specified. Enter your desired duration in the Duration Target
field, then click Duration Matching to display this dialog box.
Target Options
Each of the four options here ( Next Higher/Lower Optimum Speed and Next Higher/Lower
Acceptable Speed ) apply a different algorithm (or, calculation) to the Duration Target value
to determine the closest match. For example, if you set Duration Target to 12 seconds,
Table 5: Results of Roll/Crawl Speed Settings
Speed Setting NTSC/525 Result PAL/625 Result
1 15 lps 12.5 lps
2 30 lps 25 lps
3 60 lps 50 lps
4 120 lps 100 lps
5 180 lps 150 lps
6 240 lps 200 lps
7 300 lps 250 lps
8 360 lps 300 lps
9 420 lps 350 lps
10 480 lps 400 lps
START STOP
Begin Roll/Crawl from
middle of screen
Begin Roll/Crawl from
off-screen End Roll/Crawl
off-screen
End Roll/Crawl at
middle of screen
You cannot combine a Start off-screen roll/crawl with a Stop off-screen roll/crawl.
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NEXT HIGHER OPTIMUM SPEED
NEXT LOWER OPTIMUM SPEED
NEXT HIGHER ACCEPTABLE SPEED
NEXT LOWER ACCEPTABLE SPEED
ROLL/CRAWL OPTIONS
Target Options
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