The high-frequency portion of the electromagnetic spectrum used for transmitting television and radio signals.

See also UHF, VHF.

Redundant Array of Independent Disks. The storage device standards that provide fault tolerance, which helps to recover a system if a drive malfunctions. RAID is also used to enhance throughput of stored data.

Random-access memory. Computer memory that is volatile and
unsaved — information in RAM clears when the computer is turned off.

The ability to move to a video point instantly, without having to shuttle.

The actual clock time in which events occur.

To convert analog video and audio signals to an Avid compressed digital signal format.

A spool with a center hub and flat sides on which magnetic tape is wound. Generally, a spool of tape is referred to as a reel, and a spool of film is referred to as a roll.

The part of an image that the user identifies as the target for a motion tracking operation. Also called the search pattern.

To play a sequence in the Timeline from the preroll through the postroll.

To play a sequence in the Timeline from the current position to the postroll.

To play a sequence in the Timeline from the preroll to the current position.

A film print ready for presentation to an audience. Release prints generally include both picture and sound tracks.

See also answer print, work print, YUV.

The merging of effect layers to create one stream of digital video for playback in real time.

A type of effect for repeating a frame so that it appears to "freeze" or stop the frame, or for repeating a series of frames, such as a series of animation frames.

An edit in which a segment in the sequence is overwritten or replaced with source material of matching duration.

The amount and degree of detail in the video image, measured along both the horizontal and vertical axes. Usually, the number of available dots or lines contained in the horizontal and vertical dimensions of a video image. Also, the number of color or grayscale values that can be added, usually stated in bits, such as 8-bit or 24-bit. Sometimes dots per inch (dpi) is referred to as the resolution, although it is more properly called the screen density.

See radio frequency (RF).

Red, green, and blue. In computer systems, the additive primary colors used to create all other colors on a computer monitor.

See WAVE.

The process in edit decision list management of adjusting the times of all edits following a length-altered edit.

Removable magnetic disk. RMAGs are used in conjunction with chassis; each chassis can hold two of these removable disk modules.

A length of film wound on a spool or core. Generally, a spool of film is referred to as a roll, and a spool of tape is referred to as a reel.

Text that moves vertically across an area over time. The most common example of rolling text is credits at the end of feature films and television programs.

A preliminary edit of a program, usually the result of an offline edit.

See also work print.

The Electronic Industries Association timing specification for NTSC broadcast video equipment. RS-170A specifies the timing of scans and blanking required to decode color signals.

The Electronic Industries Association standard interface for connecting serial devices. Usually referred to by the original standard name of RS-232. The standard supports two types of connectors: a 25-pin D-type connector and a 9-pin D-type connector. The maximum permissible line length under the specification is approximately 15ámeters.

The Electronic Industries Association standard interface for connecting serial devices. The RS-422 is an enhancement of the RS-232C standard. It allows for higher data rates and an extended line length to approximately 1200ámeters.

See dailies.

One of the color difference signals in the component color system of the NTSC video standard. The signal formula is:

See also B–Y, Y.