Apple LiveType 2 - Manual (Page 144)

144 Glossary
compositing The process of combining two or more video or electronic images into a
single frame. This term can also describe the process of creating various video effects.
compression The process by which video, graphics, and audio files are reduced in size
by the removal of redundant or less important data. See also codec.
decompression The process of creating a viewable image for playback from a
compressed video, graphics, or audio file.
digital A description of data that is stored or transmitted as a sequence of ones and
zeros. Most commonly, this means binary data represented using electronic or
electromagnetic signals. QuickTime movie files are digital.
digital video Refers to the capturing, manipulation, and storage of video using a
digital format, such as QuickTime. A digital video camcorder, for example, is a
videocamera that captures and stores images on a digital medium such as DV. Video
can then be easily imported.
duration The length of time that a track or effect exists in the Timeline.
DVD A DVD disc looks much like a CD-ROM or audio disc, but uses higher density
storage methods to significantly increase its capacity.
effect In LiveType, a set of attribute and timing parameters that animate an element.
element In LiveType, anything that is placed on a track: an individual character, a
block of text on a single track, an object, a movie, a texture, or an image.
field Half of an interlaced video frame consisting of the odd or the even scan lines.
Alternating video fields are drawn every 1/60th of a second in NTSC video to create the
perceived 30 frames per second video. There are two fields for every frame, an upper
field and a lower field.
FireWire The Apple trademark name for the IEEE 1394 standard. FireWire is a fast and
versatile interface used to connect DV cameras to computers. FireWire is well suited to
applications that move large amounts of data, and can also be used to connect hard
disks, scanners, and other kinds of computer peripherals.
font A complete set of a single typeface. See also LiveFont.
frame Video consists of a number of still-image frames which, when they play back
over time, give the illusion of motion. NTSC video plays back 29.97 frames per second,
and PAL video plays back 25 frames per second. Each broadcast video frame is made
up of two fields, which is different from the way film handles frames. A film frame is a
single photographic image, and does not have separate fields.
glyph A single character on a track. A glyph frequently refers to a letter or symbol, but
an object, texture, or imported element can also be referred to as a glyph in LiveType.