Apple Cinema Tools 3 - Manual (Page 223)

Glossary 223
device control Technology that allows Final Cut Pro to control an external hardware
device, such as a video deck or camera.
DF See drop frame timecode.
double system sound Any production using separate devices to record the image and
the sound. Always used in film productions and often used in 24P productions. Also
known as dual system production.
downconverted video Video created by converting high definition video (such as 24P)
to standard definition video (NTSC or PAL).
drop frame timecode NTSC timecode that skips ahead in time by two frame numbers
each minute, except for minutes ending in “0,” so that the end timecode total agrees with
the actual elapsed clock time. (Timecode numbers are skipped, but actual video frames
are not skipped.) This skipping corrects for NTSC’s actual frame rate of 29.97 fps. It
corrects for an inaccuracy of 3 seconds and 18 frames per hour in comparison to actual
elapsed time when non-drop frame timecode is used. To avoid confusion, drop frame
timecode should be avoided in film-based productions. See non-drop frame timecode.
dropped frames Frames that are not captured. If computer performance is impeded or if
the scratch disk is not fast enough, frames may be dropped during the capture process.
When a frame is dropped during capture, the frame before it is repeated. Dropped frames
can result in an incorrect cut list and interfere with the reverse telecine process.
dupe list A film list Cinema Tools users can export, which indicates duplicate uses of
the same film source material in an edited program.
edge code Refers to feet and frame count numbers found on the film edge. May be
latent key numbers on the original camera negative, or ink numbers added to the edge
of workprints. See also key number and ink number.
EDL (Edit Decision List) A text file that sequentially lists all of the edits and individual
clips used in a sequence. EDLs are used to move a project from one editing
application to another, or to coordinate the assembly of a program in a tape-based
online editing facility.
field Half of an interlaced video frame consisting of the odd or the even scan lines.
Alternating video fields are drawn every 1/60 of a second in NTSC video (1/50 of a
second in PAL) to create the perceived 30 fps video (25 fps PAL). There are two fields for
every frame, an upper field and a lower field. It is possible to capture only one field of
each frame. See also interlaced.
field dominance Refers to the field that occurs first in an interlaced video frame. If only
one field is captured, field 1 dominance means that only field 1 is captured and field 2
dominance means that only field 2 is captured. See also field.
UP01101.Book Page 223 Thursday, March 10, 2005 3:16 PM