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A/B rol1 editing
An edit in which two or more players are used to
create special effects such as dissolve and wipe,
and one recorder is used to record the results of the
edit
Black burst
A video signal which has no Iuminance or
chrominance components, but contains al1 other
elements (sync and color burst) of a video signal,
Black burst is a common referente signal used for
synchronizing video equipment,.
Color bar signals
Test signals displayed on the screen as vertical
stripes of different colors Used for adjustment of
hue, saturation of a video camera and video
monito~.
Color framing
To adjust the player IN points relative to the
~.ecorder IN points to maintain the color suhcanier
phase, one cycle of which consists of two (NTSC)/
four (PALISECAM) frames. However, this unit
does not modify the player
IN
point data. Instead it
uses the color frarning servo functions of the
connected VTRs to achieve the same effect
CTL (Control Sigrial)
Abbreviation oC control signal. In VTRs, regular
pulses recorded in a longitudinal tape traclc. By
counting this signal, it is possible to determine the
number of frames, and hence the tape's running
time. Used mainly to adjust the tracking position
of video heads, and to achieve time code
continuity in continuous recording.
Dissolve
An effect in AIB m11 editing, in which the old
video (FROM source) is faded out while the new
video (TO source) is faded in.
Drop-frame mode
A mode of time code ~unning in which the time
difference hetween a time code and NTSC video
run is adjusted (the time code runs at 30 framesl
sec while the video runs at 29.97 frameslsec) The
time code and video are synchronized
by
dropping
the first two f~ames of the time code everyminute,
except at the ten-minute maxks See also Non-drop
-frame mode
E-E mode (Electric-to-Electric mode)
The input signals are passed through the recorder's
electronics, but not through magnetic conversion
circuits such as heads and tapes, and supplied to
the output connectors This mode is useful f o ~
confirming the input signals
Edit
To process original audio and video signals by
adding and replacing other signals over a specified
segment on a videotape
In this manual, an edit also refers lo the data used
lo edit such a specitied segment on a video tape
GPI (General Purpose Interface)
An interface thal allows this unit to control devices
such as still picture devices, character generators
and superimposers which are not equipped with a
defined interface
Non-drop-frame mode
A mode of time code running in which the number
of frames of the time code and video run is not
adjusted,
See also Drop-ftame mode.
NTSC (National Television System
Committee) system
A color television system developed by NTSC and
adopted as the standard television system in the
United States and Japan
PAL (Phase Alternation
by
Line) system
A col01 television system developed in Germany
and adopted as the standard television system in
European countnes
Postroll
To run a videotape beyond an edit-end point to
check the picture that follows.
Preroll
To run a videotape to a point prior to an edit-start
point to enable the tape to reach a steady speed and
to synchranize.
Reference video signal
A video signal which contains a syrlc signal and
color hurst signals, used as a ~eference for
synchronization of video equipment.
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