Pyro Industries API-1394PCI Instrukcja Użytkownika Pobierz pdf (Strona 326)

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■ GLOSSARY

keyscope A telecine log format using files that

end with .ksl.

kilobyte (KB) Approximately one thousand

bytes of information.

kilohertz (kHz) One thousand cycles per second.

layback The process of transferring a finished

audio track back to the master videotape.

L-cut A type of sync edit in which the transi-

tion of audio and video from a source does

not occur at the exact same time. Also called

a delay, split, or overlap edit.

leader Film-like materials that are attached to

head and tail of a reel of film. The clear leader

is used as a protecting agent and threading

guide for a reel and is attached at the head

and tail. The picture leader contains writing

that identifies the reel and its contents. The

picture leader is usually placed at the head

and tail. The Society of Motion Picture and

Television Engineers (SMPTE) or Academy

leader provides a countdown before the pic-

ture content of a film begins. The SMPTE or

Academy leader is placed at the head of a

reel adjacent to picture content.

lift The process of removing selected frames

from a sequence and leaving a black space in

their place.

light That portion of the electromagnetic

spectrum between 380 and 780 nm that is

visually detectable by a normal human

observer.

light source A physical emitter of electromag-

netic energy between 380 and 780 nm.

linear editing A type of tape editing in which

you assemble the program chronologically

from beginning to end.

lined script A script prepared by the script

supervisor, marked with vertical lines to

determine coverage of a shot, indicating

which characters are on camera for a given

take at a given time. Used by editors for easy

reference.

line feed A recording of a program that is

switched between camera sources by a tech-

nical director. Also known as line cut.

liquid gate A process in which film is

immersed in a suitable liquid at the moment

of exposure to reduce scratches and abrasions.

Also known as wet gate.

locator In Avid, a mark added to a selected

frame that can be annotated with information.

log The entering of information about clips

that could include timecode, audio and video

tracks, key numbers, and so forth. Can also

refer to a medium on which the logging data

is placed, such as a file or paper.

looping The recording of multiple takes of

dialog or sound effects. Also a term for auto-

mated dialog replacement (ADR).

lossless compression A compression scheme in

which no data is lost. In video compression,

lossless data files are very large.

lossy compression A compression scheme in

which some pertinent data is thrown away,

resulting in loss of image quality. The degree

of loss depends on the specific compression

algorithm used.

LTC Acronym for longitudinal timecode. A

type of Society of Motion Picture and Televi-

sion Engineers (SMPTE) timecode that is

recorded on an assigned address track of a

videotape.

luma The achromatic part of a video signal

that refers to a quantity of light.

luminance The measure of an object that cor-

relates with the perception of brightness.

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