Appendix

RGB

An output signal format which displays pictures by using the three primary colors: Red, Green, and Blue.

Serial digital interface (SDI)

A standard for transmitting uncompressed digital video signals and embedded audio over a single coaxial cable.

STP (Shielded Twisted Pair cable)

A type of cable for communications. Copper wires are twisted in pairs, and then shielded.

Streaming

Real-time playback of audio and data received over a network. Compared to “download” playback, which starts after all the data has been received, streaming allows playback of data received up to now. Formats which enable streaming include RealMedia, Windows Media, and Quick Time. This system supports the RealMedia streaming file format (.rm).

Subnet mask

An IP address, which indicates the address of a device in a network, has two components: a network address (the address of the network) and a host address (the address of an individual computer). A subnet mask is a value used to specify how many bits in the IP address are reserved for the network address. A subnet is a smaller network created by dividing a large network into two or more parts.

Superimpose

A type of special effect in video editing, used to display text and pictures over other pictures.

Talk back (TB)

To pass along instructions, for example from a director. In this system, when you talk into the microphone on the front panel, your voice is output to the connected intercom system, allowing you to converse with other people on the intercom system.

TB (Talk Back)

See Talk back.

Telop (Television Opaque Projector)

Superimposed text and image resources, such as television subtitles. This also refers to text and images that have been combined with video.

Threshold

The level at which a limiter or compressor is activated.

Thumbnail

An image which has been reduced in size for the purpose of displaying a list of many images.

Tilt

To move a camera up and down.

Transition

To switch from one video to a different video over a certain time interval. Transitions can be used together with text and image keys to compose and erase pictures.

Transition effect Gradually switching from one video to another through the application of one of various effects. This systems supports two type of transition effects: mix and wipe.

Trim

To adjust the input level of audio signals. These adjustments are performed at the input stage, before level adjustments with the audio channel faders.

TRS

A jack used in headphones and other devices.

VISCA

A protocol developed by Sony which allows video equipment to be connected to computers.

Wipe

A type of transition effect. A new picture moves in to replace an old picture, as if wiping the old picture away.

XLR

A3-pin connector, often called a Cannon connector. A locking mechanism keeps the connector securely connected even when the cable is pulled. Very stable despite its simple structure, and often used on microphones to suppress handling noise.

222 Glossary