Key

Key
A&V
• Also called key source or key cut. A signal that can be used to electronically "cut a hole" in a video picture to allow for insertion of other elements such as text or another video image. The key signal is a switching or gating signal for controlling a video mixer which switches or mixes between the background video and the inserted element.
• The composite effect created by cutting a hole in one image and inserting another image into the hole.

Audio and video glossary. 2014.

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  • Key — (k[=e]), n. [OE. keye, key, kay, AS. c[ae]g.] 1. An instrument by means of which the bolt of a lock is shot or drawn; usually, a removable metal instrument fitted to the mechanism of a particular lock and operated by turning in its place. [1913… …   The Collaborative International Dictionary of English

  • Key — may refer to: Building* Key, Carpentry: timber or metal wedges used across or between two or more members to act as a tightening agent. * Key, Painting: to rough the surface of previous coats of paint to allow a secure bond for the next or top… …   Wikipedia

  • KeY — is a formal software development tool that aims to integrate design, implementation, formal specification, and formal verification of object oriented software. It supports programs written in Java (more precisely: in a superset of Java Card) and… …   Wikipedia

  • Key — Key, v. t. [imp. & p. p. {Keved}; p. pr. & vb. n. {Keying}.] 1. To fasten or secure firmly; to fasten or tighten with keys or wedges. Francis. [1913 Webster] 2. (Computers) To enter (text, data) using keys, especially those on a keyboard; to… …   The Collaborative International Dictionary of English

  • key — key, a. Essential; most important; as, the key fact in the inquiry; the president was the key player inthe negotiations. [PJC] …   The Collaborative International Dictionary of English

  • key — I. noun Etymology: Middle English, from Old English cǣg; akin to Old Frisian kēi key Date: before 12th century 1. a. a usually metal instrument by which the bolt of a lock is turned b. any of various devices having the form or function of such a… …   New Collegiate Dictionary

  • key — See: LOW KEY, OFF KEY …   Dictionary of American idioms

  • key — See: LOW KEY, OFF KEY …   Dictionary of American idioms

  • key — Quay Quay, n. [F. quai. See {Key} quay.] A mole, bank, or wharf, formed toward the sea, or at the side of a harbor, river, or other navigable water, for convenience in loading and unloading vessels. [Written also {key}.] [1913 Webster] …   The Collaborative International Dictionary of English

  • key — Cotter Cot ter (k[o^]t t[ e]r), n. 1. A piece of wood or metal, commonly wedge shaped, used for fastening together parts of a machine or structure. It is driven into an opening through one or all of the parts. Note: [See Illust.] In the United… …   The Collaborative International Dictionary of English

  • Key West — is an island in the Straits of Florida on the North American continent at the southernmost tip of the Florida Keys.Key West is politically within the limits of the city of Key West, Monroe County, Florida, United States. The city also occupies… …   Wikipedia

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