Pyro Industries API-1394PCI Manual de usuario descargar pdf (Pagina 327)

306

GLOSSARY ■

luminance contrast The apparent change from

lighter to darker areas of an image.

M & E track A single or stereo pair audio track

that contains music and sound effects.

magenta A subtractive primary that absorbs

green light and reflects red and blue light.

magnetic track A sound track recorded on

magnetic sound recording film. Mag track

has sprocket holes and resembles film stock

in shape and size, but is coated with mag-

netic oxide.

married print A positive film print with both

picture and sound.

mask To cover unwanted parts of an image.

In film production, the U.S. common mask is

1.85:1. Also used in alpha channels to mask

unwanted elements, such as in keys.

master 1. The tape resulting from a camera

shoot or camera master. 2. The tape resulting

from editing, also known as an edited com-

posite master (ECM).

master clip In the bin, the media object in the

database that points to complete or whole

media files.

master shot The shot that serves as the

overview of a scene and into which all cut-

aways and closeups will be inserted during

editing. A master shot is usually a wide shot

showing all characters and action.

master-slave A video-editing procedure in

which one or more decks (the slaves) are set

to follow along with another in terms of its

location (the master). The difference in time-

code between master and slave is called the

master-slave offset. Also called chase.

matchback A process that allows generation of

a film cut list from a 30 fps video-based

project. Matchback lists can be + or – 1

frame accuracy per edit. A method of con-

verting from one frame rate to another; that

is, from 30 fps video to 24 fps film. Match-

back provides ease of use with the ability to

generate both edit decision lists (EDLs) for

video and cut lists for a telecined film.

Commonly used process for television

where a conformed print will be required

for distribution in other formats. Can also

refer to the application that generates a

matchback list.

match-frame edit An edit in which the last

frame of the outgoing clip is in sequences

chronologically with the first frame of the

incoming clip so as to continue the picture

or sound seamlessly without interruption.

In an Avid Timeline, this is indicated by a

small equal sign (=) across the edit between

two clips. In linear systems, match frames

are used to extend an existing edit or con-

tinue through a transition effect, such as a

dissolve.

matte key A video effect comprised of three

components: the background video, the fore-

ground video, and the matte (also called

holdout, hi-con, cookie cutter, or alpha

channel), which allows one portion of the

image to be superimposed on the other.

media Video, audio, and graphics.

media files Digital files stored on a computer

containing audio and video data.

megahertz (MHz) One million cycles per second.

Meta speed An option used on Cintel telecines

that allows for an extraordinary variety of

frame rates during telecine transfers. Meta

speed transfers can range from –30 fps to

+96 fps.

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