Apple Cinema Tools 3 - Manual (Page 225)

Glossary 225
key number Latent feet and frame count numbers found on the film edge. Key
numbers are often superimposed by the telecine onto the edge of the video frames
(this is called window burn). Cinema Tools uses key numbers to help match digital edits
back to the original camera negative. Key numbers consist of a key prefix, which is
unchanging throughout an entire roll of film, and a frame number, which consists of a
footage number and a frame count number. Telecine systems also often add a frame
type identifier to the key number. For example, in the key number KJ 291010 5867 +07
B, the key prefix is KJ 291010, the frame number is 5867 +07, and the frame type
identifier is B. Also known as edge code.
latent key number A number added to the film edge during its manufacturing
process. Also known as latent edge code. See also key number.
match back To match the edits of a video program sourced from film back to the
original camera negative. All the edits to the video are listed in a cut list, which the
negative cutter uses to cut the workprint and original camera negative.
NDF See non-drop frame timecode.
negative cutter A professional who conforms the original camera negative according
to a cut list and/or a visual reference such as workprint or a videotape generated by the
digital editing system.
non-drop frame timecode Normal NTSC timecode, where frames are numbered
sequentially and there are 30 frames per second, 60 seconds per minute, and 60
minutes per hour. Because NTSC’s frame rate is actually 29.97 fps, non-drop frame
timecode is off by 3 seconds and 18 frames per hour in comparison to actual elapsed
time. Compare to drop-frame timecode.
NTSC Acronym for National Television Standards Committee, the organization that defines
North American broadcast standards. The term NTSC video refers to the video standard
defined by the committee, which is 29.97 fps, 525 lines per frame, and interlaced.
offline edit The creative edit, where edit decisions are made. When the offline edit is
finished, the material is often recaptured at high quality or an EDL is generated for re-
creating the edit on another system. See EDL.
OMF Acronym for Open Media Format. A media interchange format, supported by many
Digital Audio Workstations, that allows all of the audio and edit points in an audio
sequence to be exported as a self-contained file. OMF files are often given to an audio
postproduction facility, finished there, and then used as the final audio in a feature.
online edit The final editing process, where all the decisions made in the offline edit
are applied to the original camera negative or full-resolution video reels.
UP01101.Book Page 225 Thursday, March 10, 2005 3:16 PM