|
Clean Feed (TV)
In television technology, a clean feed is a video signal that does not have added graphics and text. This video signal is used in sport production to allow different television stations to add their own digital on-screen graphic image on a common signal, or in news broadcasting to produce two or more different streams, each one with the same picture but in different languages. A clean feed is a signal which has not come from the main output of the video switcher, such as the output of a vision mixer before the downstream keyer stage - the clean feed is identical to the main program output but without any captions keyed into it. Modern production equipment can actually put different keys on multiple outputs, allowing them to go to the clean feed or not. The most sophisticated vision mixers (or production switchers, according to the American nomenclature) can generate a clean feed output for any of their mix/effects (ME) buses. The term ''clean feed'' is also used to refer to ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fiber-optic Network
Fiber-optic communication is a form of optical communication for transmitting information from one place to another by sending pulses of infrared or visible light through an optical fiber. The light is a form of carrier wave that is modulated to carry information. Fiber is preferred over electrical cabling when high bandwidth, long distance, or immunity to electromagnetic interference is required. This type of communication can transmit voice, video, and telemetry through local area networks or across long distances. Optical fiber is used by many telecommunications companies to transmit telephone signals, internet communication, and cable television signals. Researchers at Bell Labs have reached a record bandwidth–distance product of over kilometers per second using fiber-optic communication. Background First developed in the 1970s, fiber-optics have revolutionized the telecommunications industry and have played a major role in the advent of the Information Age. Becau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mix-minus
In audio engineering, a mix-minus or clean feed is a particular setup of a mixing console or matrix mixer, such that an output of the mixer contains everything ''except'' a designated input. Mix-minus is often used to prevent echoes or Audio feedback, feedback in Broadcasting, broadcast or sound reinforcement systems. Examples A common situation in which a mix-minus is used is when a telephone hybrid is connected to a console, usually at a radio station. The person on the telephone hears all relevant feeds, usually an identical mix to that of the master bus, including the DJ's mic feed, except that the caller does not hear their own voice. Mix-minus is also often used together with Interruptible_fold_back, IFB systems in electronic news gathering (ENG) for television news reporters and interview subjects speaking to a host from a remote outside broadcast (OB) location. Because of the delay that is introduced in most means of transmission (including Communications satellite, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lower Third
In the television industry, a lower third is a graphic overlay placed in the title-safe lower area of the screen, though not necessarily the entire lower third of it, as the name suggests. In its simplest form, a lower third can just be text overlaying the video. Frequently this text is white with a drop shadow to make the words easier to read. A lower third can also contain graphical elements such as boxes, images or shading. Some lower thirds have animated backgrounds and text. Lower thirds can be created using basic home-video editing software or professional-level equipment. This equipment makes use of video's alpha channel to determine what parts of the graphic or text should be transparent, allowing the video in the background to show through. Terminology Lower thirds are also often known as "CG" (from character generator) or captions, and sometimes chyrons in North America, due to the popularity of Chyron Corporation's Chiron I character generator, an early di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lower-third
In the television industry, a lower third is a graphic overlay placed in the title-safe lower area of the screen, though not necessarily the entire lower third of it, as the name suggests. In its simplest form, a lower third can just be text overlaying the video. Frequently this text is white with a drop shadow to make the words easier to read. A lower third can also contain graphical elements such as boxes, images or shading. Some lower thirds have animated backgrounds and text. Lower thirds can be created using basic home-video editing software or professional-level equipment. This equipment makes use of video's alpha channel to determine what parts of the graphic or text should be transparent, allowing the video in the background to show through. Terminology Lower thirds are also often known as "CG" (from character generator) or captions, and sometimes chyrons in North America, due to the popularity of Chyron Corporation's Chiron I character generator, an early digital ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Break Bumper
In broadcasting, a commercial bumper, ident bumper, or break-bumper (often shortened to bump) is a brief announcement, usually two to fifteen seconds in length that can contain a voice over, placed between a pause in the program and its commercial break, and vice versa. The host, the program announcer, or a continuity announcer states the title (if any) of the presentation, the name of the program, and the broadcast or cable network, though not necessarily in that order. On children's television networks, they are sometimes called external eyecatches due to the resemblance of internal eyecatches in anime and there is usually no voice over, but some bumpers do feature one. Bumper music, often a recurring signature or theme music segment, is nearly always featured. Bumpers can vary from simple text to short films. United States Since 1976, most network television programs in the United States no longer use commercial bumpers; although some soap operas such as ''Days of Our Lives ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Television Advertisement
A television advertisement (also called a commercial, spot, break, advert, or ad) is a span of television programming produced and paid for by an organization. It conveys a message promoting, and aiming to market, a product, service or idea. advertising, Advertisers and marketing, marketers may refer to television commercials as TVCs. Advertising revenue provides a significant portion of the funding for most privately owned television networks. During the 2010s, the number of commercials has grown steadily, though the length of each commercial has diminished. Advertisements of this type have promoted a wide variety of goods, services, and ideas ever since the early days of the history of television. The viewership of television programming, as measured by companies such as Nielsen Media Research in the United States, or Broadcasters' Audience Research Board, BARB in the UK, is often used as a metric for television advertisement placement, and consequently, for the rates which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Production Truck
A television production truck or OB van is a small mobile production control room to allow filming of events and video production at locations outside a regular television studio. They are used for remote broadcasts, outside broadcasting (OB), and electronic field production (EFP). Some require a crew of as many as 30 people, with additional trucks for additional equipment as well as a satellite truck, which transmits video back to the studio by sending it up through a communications satellite using a satellite dish, which then transmits it back down to the studio. Alternatively, some production trucks include a satellite transmitter and satellite dish for this purpose in a single truck body to save space, time and cost. Other television production trucks are smaller in size and generally require two or three people in the field to manage. For instance broadcast journalism reporters providing live television, local news in the field electronic news gathering (ENG) outside a fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Communication Satellite
A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. Communications satellites are used for television, telephone, radio, internet, and military applications. Many communications satellites are in geostationary orbit above the equator, so that the satellite appears stationary at the same point in the sky; therefore the satellite dish antennas of ground stations can be aimed permanently at that spot and do not have to move to track the satellite. Others form satellite constellations in low Earth orbit, where antennas on the ground have to follow the position of the satellites and switch between satellites frequently. The radio waves used for telecommunications links travel by line of sight and so are obstructed by the curve of the Earth. The purpose of communications satellites is to re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Television Station
A television station is a set of equipment managed by a business, organisation or other entity such as an amateur television (ATV) operator, that transmits video content and audio content via radio waves directly from a transmitter on the earth's surface to any number of tuned Television sets, receivers simultaneously. Overview The ''Fernsehsender Paul Nipkow'' (''TV Station Paul Nipkow'') in Berlin, Germany, was the first regular television service in the world. It was on the air from 22 March 1935, until it was shut down in 1944. The station was named after Paul Gottlieb Nipkow, the inventor of the Nipkow disk. Most often the term "television station" refers to a station which broadcasts structured content to an audience or it refers to the organization that operates the station. A terrestrial television transmission can occur via analog television signals or, more recently, via digital television signals. Television stations are differentiated from cable television or other video ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Backhaul (broadcasting)
In the context of broadcasting, backhaul refers to uncut program content that is transmitted point-to-point to an individual television station or radio station, broadcast network or other receiving entity where it will be integrated into a finished TV show or radio show. The term is independent of the medium being used to send the backhaul, but communications satellite transmission is very common. When the medium is satellite, it is called a wildfeed. Backhauls are also referred to sometimes as '' clean feeds'', being ''clean'' in the sense that they lack any of the post-production elements that are added later to the feed's content (i.e. on-screen graphics, voice-overs, bumpers, etc.) during the integration of the backhaul feed into a finished show. In live sports production, a backhaul is used to obtain live game footage (usually for later repackaging in highlights shows) when an off-air source is not readily available. In this instance the feed that is being obtained c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keying (graphics)
Compositing is the process or technique of combining visual elements from separate sources into single images, often to create the illusion that all those elements are parts of the same scene. Live-action shooting for compositing is variously called "chroma key", "blue screen", "green screen" and other names. Today, most compositing is achieved through digital image manipulation. Pre-digital compositing techniques, however, go back as far as the trick films of Georges Méliès in the late 19th century, and some are still in use. Basic procedure All compositing involves the replacement of selected parts of an image with other material, usually, but not always, from another image. In the digital method of compositing, software commands designate a narrowly defined color as the part of an image to be replaced. Then the software (e.g. Natron) replaces every pixel within the designated color range with a pixel from another image, aligned to appear as part of the original. For e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
