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Tektronix provides test and measurement instruments, solutions and services for the computer, semiconductor, military/aerospace, consumer electronics and education industries worldwide.
The Video for Windows file format for digital video and audio. An AVI (.avi) file is a RIFF file format used with applications that capture, edit and playback audio/video sequences. AVI files contain multiple streams of different types of data. Most AVI sequences will use both audio and video data streams. Specialized AVI sequences might include control track as an additional data stream. See Video for Windows.
Industry:Entertainment
DVI system software designed to play motion video and audio across hardware and operating system environments.
Industry:Entertainment
A switch on some camcorders used to compensate exposure for situations where the brightest light is coming from behind the subject.
This term is also used to refer to a light source that illuminates a subject from behind, used to separate the subject from the background and give them depth and dimension.
Industry:Entertainment
1) Video that forms a background scene into which a key may be inserted. 2) A solid color video output generated by the background generator within a device, such as a production switcher, for use as background video in key effects.
Industry:Entertainment
An MPEG video frame type that provides bi-directional interframe compression. B frames derive their content from the closest I or P frames, one in the past and one in the future. B frames require greater computing power to produce than I or P frames. B frames enable compression rates of 200: 1. Robust MPEG encoders employ a combination of B, I, and P frame encoding.
Industry:Entertainment
The process of recording a black burst signal across the entire length of a tape. Often done before recording edited footage on the tape to give the tape clean, continuous video and sync and to insure there is no video already on the tape.
Industry:Entertainment
Also called “color black,” “house sync,” or “house black.” Black burst is a composite video signal consisting of all horizontal and vertical synchronization information, burst, and usually setup. Typically used as the house reference synchronization signal in television facilities.
Industry:Entertainment
The horizontal blanking interval is the time between the end of one horizontal scanning line and the beginning of the next. The vertical blanking interval is the time between the end of one video field and the beginning of the next. Blanking occurs when a monitor’s electron beam is positioned to start a new line or a new field. The blanking interval is used to instantaneously reduce the beam’s amplitude so that the return trace is invisible.
Industry:Entertainment
a) Refers to the 0 IRE level which exists before and after horizontal sync and during the vertical interval. This voltage level allows the electron beam to be turned off while it is being repositioned (retracing) across the face of the CRT into the position needed to start tracing the next visible line. b) The level of the front and back porches of the composite video signal. c) The level of a composite picture signal which separates the range containing picture information from the range containing synchronizing information. Note: This term should be used for controls performing this function (IEEE 100).
Industry:Entertainment
A film or video technique in which an object or performer is taped against a blue-colored background. In post-production, the blue color is electronically removed, allowing images to be combined. Also, the film industry's term for chroma key.
Industry:Entertainment
