We've recently redesigned our website so your bookmarked links may no longer work. Please use either the search bar at the top right of this page or select an area from one of the tabs above to find what you are looking for.
We've recently redesigned our website so your bookmarked links may no longer work. Please use either the search bar at the top right of this page or select an area from one of the tabs above to find what you are looking for.
Dictionary of Technical Terms - E
E Series DS3 Digital Video Transmission System
A cost-effective digital transmission system for video, stereo audio, voice and data made by Grass Valley. A GVG 96 x 10 video-only routing switcher optimized for the security market. End of active video in component digital systems. The EBU recommendation for the parallel interface of 625 line digital video signals. A revision of the earlier EBU Tech.3246-E, which in turn was derived from CCIR-601 and contributed to CCIR-656 standards. European Broadcasting Union. An organization of European broadcasters that, among other activities, produces technical statements and recommendations for the 625/50 line television system. A family of high speed, low power IC logic devices. Exchange Carriers Standards Association. Error detection and handling.Proposed SMPTE RP-165 for recognizing inaccuracies in the serial digital signal. It may be incorporated into serial digital equipment and employ a simple LED error indicator. Electronic Data Interexchange. Disk storage system for E-MEM effects on some GVG video switchers.edit controller (editor, editing computer)
A control system (usually computerized) which allows control of videotape machines, a video switcher, and other devices remotely from a single control panel. An edit controller, in conjunction with the other equipment that comprises the complete editing system, enables production of finished video programs which combine video and audio from several different sources. A list of edit decisions accumulated in a video editor. The list typically includes the source, in time, and out time for each edit. In some GVG digital picture manipulators, a mode which allows effects to be created and modified. Room where editing is done. Production of finished videotape from source tape. Editing usually involves the use of an computer editing system to select scenes and audio from multiple video and audio sources and record them into a finished program on a single videotape. An editing system operator. Also the informal term used for an edit controller. A serial communications link between an edit controller and peripheral devices, such as a video switcher and tape machines. The editor interface allows the edit controller to send control commands to the peripherals and receive status reports from the peripherals. The interface connector and circuits on a device, such as a switcher, which enable communications with an edit controller. Edit decision list. An option package for some GVG edit controllers that includes the 409™ list cleaning program, the Trace™ program for multi-generational editing and first-generation auto assembly, the XEDL™ program for edit list translation and serial input/output, an internal modem, and other disk and file utility programs. This stands for "electronics to electronics" and is a VTR mode in which the VTR processes the signals that it would normally use during recording but does not actually record onto the tape. Electrically erasable programmable read only memory. A type of memory chip that can hold data even when power is removed. The memory can be erased electronically so that new data can be stored. In digital picture manipulators, a collection of sectors on the disk which represents one complete effect. In digital picture manipulators, an area in controller memory representing one complete effect. The process of combining two or more video images to create a new composite image.effects dissolve (effects transition)
An automatic smooth transition of analog control settings in a mixer from some initial setting to a different end setting. For example, the position of a pattern or key mask can be moved between programmed points, or the hue of a color matte can be changed in real time, creating a color transition. Similar to a key frame except that only two positions are stored, the beginning and ending positions. The ability of a video production switcher to store and recall effects created on the system by use of computer control techniques. See E-MEM(R). A video switcher feature that allows a key source to be selected at the switcher and then sent to a digital picture manipulator for manipulation. The manipulated key and fill video are then returned to the switcher's keyer for keying ("flying" a key) over background video. The portion of the production switcher that performs mixes, wipes and cuts between background and/or special effects key video signals. Electronic field production, meaning to produce a video production in the field instead of in a studio. Effects. Electronic Industries Association, an American organization that writes recommended practices and standards for television. See B8ZS. The time it takes for a signal to pass through a given path. A stream of electrons in a cathode-ray (picture) tube which is focused at a phosphorescent screen to create pictures. The beam is directed at its target by deflecting coils or plates. 2. A stream of electrons focused on the light sensitive surface of a camera pickup tube. A metal cabinet or chassis that holds circuit boards. 1. Effects memory. A memory system invented by GVG for switchers and digital picture manipulators. The E-MEM system stores effects for later recall. 2. An effect learned or programmed into a Grass Valley Group device for later recall. Electromagnetic interference. Undesirable electromagnetic waves that are radiated unintentionally from an electronic circuit or device into other circuits or devices, disrupting their operation. Grass Valley Group product that digitally encodes and decodes color difference or RGB video formats into composite analog or digital (D2) video with a significant improvement in artifact removal. Digital audio that is multiplexed onto a serial digital video data stream. To turn on. A chroma key that uses an encoded video signal instead of separate RGB or Y, Cr, Cb signals for deriving the key. A reference system created by Grass Valley Group to provide exact color timing information. Encoded subcarrier simplifies system timing design when used with devices like STM-85N Source Timing Modules and CBM-85N Color Bar Modules. In video, a device that forms a single, composite color signal from a set of component signals. Electronic News Gathering, meaning to use a portable video camera and recorder to record news events in the field. Electronically adjusting the quality and sharpness of a video image. May also refer to sweetening audio, for example, by adding laugh tracks and sound effects. Erasable programmable logic device. An IC containing a large number of logic gates whose interconnections are programmable for specific applications. Additionally, the devices can be erased and reprogrammed. Erasable programmable read only memory. A type of memory chip that can hold data even when power is removed. The memory can be erased, usually by ultraviolet light exposure, so that new data can be stored. Equalization. A network connected to a circuit to correct or control its transmission frequency characteristics. See equalization. 1. Process of altering the frequency response of a video amplifier to compensate for high-frequency losses in coaxial cable. 2. In audio, to improve the sound quality by increasing or decreasing the gain of the signal at various frequencies. A device that compensates for undesired amplitude-frequency and/or phase-frequency shifts in a signal. A distribution amplifier that incorporates cable equalization. GVG offers a broad range of equalizer types to match the characteristics of most popular cables. In an encoded video signal, a series of twice-line-frequency pulses occurring during vertical blanking before and after the vertical synchronizing pulse. Different numbers of equalizing pulses are inserted into different fields to ensure that each field begins and ends at the right time to produce proper interlace. The twice line rate also serves to maintain horizontal synchronization during vertical blanking. In digital video recording systems, a technique used when error correction fails. Erroneous data is replaced by data synthesized from surrounding pixels. In digital video recording systems, a scheme that adds overhead to the data to permit a certain level of errors to be detected and corrected. See EDH. A plate that covers an opening, typically in a control panel or electronics frame. A control panel designed to mount into an opening in another control panel. Enhanced Service Provider. See safe title/safe action area A type of high-speed network for interconnecting computing devices. Ethernet is a trademark of Xerox Corporation, Inc. Electronic Tandem Network. See U. See V. In videotape editing, a sequence of actions taken by the editing computer and recorded in a single pass. An MS-DOS program option used with the GVG MASTER-21™ Master Control Switcher to stack sequences of video, audio, and key events and load those sources into the Preset bus for transition to the Program bus. A 625 line video standard that allows processing of component video quality digital signals by composite PAL equipment. The signal can be distributed and recorded in a composite digital form using D2 or D3 VTRs. An adapter board that extends a module outside of its frame to allow easier access to the module's components for troubleshooting and alignment. Background matte video that is coming from a source outside of the equipment in question. Fill video that is coming from a source outside of the equipment in question. See fill. A video key that uses an external key signal (a signal coming from a source outside the device in question) to cut the key hole and a separate fill signal to fill the hole. A mask signal that is coming from a source outside of the equipment in question. See mask. A source of timing information from a source external to the system in question. A video input signal to the device in question from some external source. Used as a key source and/or fill. A waveform used to evaluate channel performance in digital video systems. Industrial quality video transmission over fiber-optic cable. Includes video and audio.We've recently redesigned our website so your bookmarked links may no longer work. Please use either the search bar at the top right of this page or select an area from one of the tabs above to find what you are looking for.
