A Cut is a fast transition, one occurring within an interval of a frame, is usually called a
Cut instead of a crossfade.
An edit controller can only change the transition time, the time it takes to fade out a
machine while fading in another machine. DAFV
2
’s transition time range is 0 to 255
frames. (Approximately 10 milliseconds to 10 seconds.)
Edit Controller Operation
An edit controller is a computer-based interface responsible for tying together all
VTR’s, ATR’s, switchers and mixers.
Its purpose is to coordinate the various machines and initiate execution of cuts,
crossfades, and other effects.
The edit controller may be a generic software package for a PC, with interface cards to
connect to various machines, or it may be a dedicated package targeted around a
certain brand of video switcher.
In a small post facility, it may also be the front-end to an integrated desktop video
editing / effects processor.
Please notice that though the DAFV
2
has the ability to respond to serial commands to
execute instructions, a given edit controller might not have the ability to send all the
commands required to access every parameter within the DAFV
2
.
In other words, your edit controller may or may not be able to take full advantage of all
the features of the DAFV
2
.
You may remotely control the following parameters of the DAFV
2
:
• Program Bus Assignments
• Preset Bus Assignments
• Transition Time
• Initiate Transition
• Stop Transition
• Fader Level Range
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