Dynamically Controlling Roll & Crawl; Table 6 Roll & Crawl Speed Controls - Videonics PowerScript PS4000S Instruction Manual

Videonics PowerScript
then specify Next Lower Optimum Speed, the algorithm might calculate an Actual Duration
of 10 seconds—if you specify Next Lower Acceptable Speed, the algorithm might calculate
an Actual Duration of 8 seconds.
A trade-off exists between Optimum and Acceptable speeds. Optimum speeds normally
produce smoother motion, but might not be able to meet your target as closely as you
require. Acceptable speeds might result in "jerkier" motion, but are more likely to meet
your required target speed. The only way to determine which option is best for your situ-
ation is through experimentation. Select each Target Option in turn and check the result-
ing Actual Speed factor. Play the sequence to determine if it meets your requirements. If
not, try specifying a different Target Option and repeat the process until you are satisfied
with the results.
If you try all of the Target Options but still are not satisfied with the result, try the follow-
ing to make the page longer or shorter:
This field shows the actual duration that PowerScript is able to provide based on your
Actual Duration
Duration Target and the Target Option you specify. This is a non-editable text field—that is,
you cannot type in the field nor change the value. You can change this factor by chang-
ing the Duration Target and/or Target Option in any combination, or by making the page
longer or shorter.
Dynamically Controlling Roll & Crawl
You can control the Roll & Crawl speed while the page plays. When you adjust the speed
in this manner, it is "dynamic"—that is, the Roll & Crawl settings in your original project
do not change. Your change affects roll and/or crawl only for the current playback ses-
sion.
You might find this feature useful if, for example, in a live-broadcast situation you sud-
denly determine that you have only 10 seconds to run the closing credits, rather than the
15 seconds you allotted in your original project. When the credits begin to roll, enter the
Increase Speed key combination (shown in the following table) to make the credits roll or
crawl faster. Keep entering the key combination until the roll or crawl speeds up suffi-
ciently to meet your needs. Similarly, use the Decrease Speed key combination to slow
down roll or crawl when you are faced with "dead air time."
Table 6: Roll & Crawl Speed Controls
• Add some blank lines to the bottom of the page. For a crawl, add blank characters.
• Change line spacing on the page—that is, increase or reduce line spacing. For a
crawl, vary the letter spacing.
• Change the size of the text.
• Select the text object and use the MODIFY menu to stretch the object. For example,
increasing the height by 5% might be sufficient to extend the length of a roll.
Key Combination
Ctrl
-
Ctrl
Result
Enter to INCREASE the current Roll or Crawl speed.
Continue entering as many times as necessary to
achieve the required speed.
Enter to DECREASE the current Roll or Crawl speed.
Continue entering as many times as necessary to
achieve the required speed.
Dynamically Controlling Roll & Crawl
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