Glossary: T
The last frame in a clip of film or a segment of video.
The slate information recorded at the end of the take instead of at the
beginning; usually recorded upside down.
Film or videotape wound on a reel with the head next to the hub and the
tail on the outside of the reel.
Time-base corrector. An electronic device that improves video signal
stability by correcting time-base errors inherent in mechanical videotape
recorders.
A device that transfers motion picture film images onto videotape.
Film stock generated via a modified camera gate that creates a frame size
three perforations in height rather than the standard four perforations.
Therefore, the same roll of film lasts 25ápercent longer. Three-perf format
is popular with multicamera film-based shows because the extra 25ápercent
of negative stock is similar to having a free camera.
The basic principle that an edit event requires only three marks between
the source and record sides to automatically calculate the fourth mark and
complete the edit.
Magnetic film stock containing three rows of magnetic oxide coating.
Tag Image File Format. A tag-based system developed by Aldus
Corporation for storing and interchanging raster images. The
OMFáInterchange standard includes TIFF as a common format for graphic
interchange, and it includes TIFF with extensions as a common format for
video frame data.
A variation in the stable relation of picture information, color information,
and video sync pulse during the VTR playback process.
An electronic indexing method used for editing and timing video
programs. Timecode denotes hours, minutes, seconds, and frames
(00:00:00:00) elapsed on a videotape. Address track timecode is recorded
simultaneously with the video picture. Longitudinal timecode (LTC) is
recorded on an audio track. Vertical interval timecode (VITC) is recorded
in the vertical blanking interval of the video track. SMPTE timecode is the
prevalent standard.
Other timecodes exist that include film timecode and audio timecode used
during film projects. During editing, the Avid system can display and track
several types of timecode.
The graphical representation of every macroscopic and microscopic edit
made to a sequence, including all nested effects and layered tracks.
The timecode that approximately matches the actual time of day (clock
time).
The name given to a project or bin, located at the top of a window.
A constant audio frequency signal recorded at the start of a tape at 0áVU
(volume units) to provide a reference for later use. Usually recorded in
conjunction with color bars.
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The section of tape on which a signal is recorded. Also called a
channel.
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The sound portion of a video program.
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A region of a clip or sequence on which audio or video is placed.
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A playback channel represented in a sequence as either a video track or
an audio track. Tracks are composed of one or more segments
connected by transitions.
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In motion tracking, a structure associated with a specific region of interest
and containing one set of data points. You can use multiple trackers on the
same clip to define complex motion.
The positioning of video heads during playback of a tape so that the heads
reproduce the strongest possible signal. Tracking is adjusted on the deck
before recording or digitizing.
A zero duration edit used as a reference during transition edits (dissolves,
wipes, and so forth) on computerized editing systems.
A way of making one track play another track's data. The referencing track
points to the source clip in the referenced track.
A method of selecting one of the tracks from a track group; only the
selected track is to be played. For example, a track selector can indicate
which of four alternate views of the same scene is to be played.
An Avid application that allows you to transfer media from one workgroup
to another. A Fibre Channel network connects the Avid systems and the
TransferManager to the Avid Unity MediaNetwork environment.
A representation of what is to take place as one segment ends and the next
one begins. The simplest transition is a cut, which occurs in video when
the first frame of the starting segment directly follows the last frame of the
segment that is ending.
A wipe, dissolve, or digital video effect (DVE) applied to an edit transition.
The loop that plays in Trim mode. You can use the Trim Settings dialog
box to adjust the lengths of preroll, postroll, and intermission.
The process of adjusting transitions in a sequence from the Timeline.
In audio equalization, the point at which the parametric curve for a
particular shelf starts to return to zero.
