GUI (Graphical UserInterface)

A user interface which, unlike traditional text-based interfaces, is designed around graphical elements such as buttons and menus.

Intercom

A network that allows staff members to talk to each other during program production.

Host name

A name assigned to a computer on a network to make it easier to identify. Usually consisting of alphanumeric characters, although conventions differ according to the system. The most commonly used types are the terminal identifiers to the left of Internet domain names.

i.LINK

The high-speed serial bus standard IEEE 1394.

Also called FireWire. Allows connections between computers and peripherals, and also direct connections between digital devices such as digital cameras.

IPv6

The next-generation Internet Protocol, the successor to the current IPv4 protocol.

IRE (International Radio Engineers)

A measure of the brightness level of video on the grayscale, ranging from 0 to 100. The brightness level of black is sometimes set at 0 IRE and sometimes set at 7.5 IRE.

Limiter

A function which prevents audio levels from exceeding a specified threshold. Used to suppress peaks in audio with large differences in amplitude.

Logo

A permanently visible mark shown in video for the purpose of copyright protection.

Luminance key

A method of composing a picture by deleting video which contains components of a specified luminance (brightness). Typically used to extract bright characters from a dark background, so that only the characters can be added to the composed picture.

Mix

A type of transition effect. A new picture is mixed into an old picture, eventually replacing the old picture.

Monitor

To listen to audio and view video. Or a device for viewing and listening.

Motion JPEG2000

An extension to the JPEG2000 image compression format that enables video recording. It provides picture quality comparable to the DV format, with file sizes that are smaller than DV. It is noted for high compression ratios in scenes with rapid movement, which are problematic for the MPEG format.

Oscillator

A transmitter that oscillates at a fixed frequency, such as a sine wave. This unit is equipped with an internal audio oscillator.

Pan

In audio, to adjust the right/left balance.

In video, to move the camera to the left and right.

PFL (Pre-Fader Listen) Monitoring audio before level adjustments with the audio channel faders. Used to check the input audio. On this system, pan and level control are not applied to PFL audio, even if trim, filter, EQ, pan, and level control settings have been made.

Picture-in-Picture (PinP) An effect achieved by embedding a video within another video.

Post-Fader

Audio signals after the application of all adjustments except pan.

Pre-Fader

Audio signals before the application of any adjustments with audio channel faders. All other adjustments are the same as those for Post-fader. Pre- fader audio can be output from the AUX output connector.

Preset

A function which allows a set of electrical settings to be saved and reproduced as a single set of data. This system has a camera preset function.

Program (PGM) signal output

The final video and audio signals output from this system, after the application of effects. The video seen by viewers.

RCA pin

A connector used on consumer audio equipment. Connectors come in color-coded pairs (often white for left and red for right). Also used for video signals (color yellow).

Appendix

Glossary 221