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Interruptible Foldback
Interruptible foldback (IFB), also known as interrupted foldback, interruptible feedback, or interrupt for broadcast, is a monitoring and cueing system used in television, filmmaking, video production, and radio broadcast for one-way communication from the director or assistant director to on-air talent or a remote location. The names are backronyms for the Telex IFB-XXX model line. Less common names for the system include program cue interrupt (PCI) and switched talkback. IFB is often facilitated using an earpiece that on-air persons wear to get cues, feedback or direction from their control rooms. The earpiece itself may also be referred to as an IFB. The IFB is a special intercom circuit that consists of a mix-minus program feed sent to an earpiece worn by talent via a wire, telephone, or radio receiver (audio that is being "fed back" to talent) that can be interrupted and replaced by a television producer's or director's intercom microphone. On a television news program fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cue (theatrical)
A theatrical cue is the trigger for an action to be carried out at a specific time. It is generally associated with theatre and the film industry. They can be necessary for a lighting change or effect, a sound effect, or some sort of stage or set movement/change. Types Cues are generally given by the stage manager as a verbal signal over the headset system or backstage intercom, by a signal with a 'cue light' or by a show control system. There are 3 types of cues given. Warning, Standby, and Go. *Warning: Given about a minute prior to the cue and gives time for crew members to get ready and make sure everything is set (this is especially important with cues for set or rail changes). *Standby: Given a few seconds before the cue and tells the crew members everything should be set and they should be standing by to go. *Go: Given at the moment the cue should be executed. This sets the crew members in action. Calling and execution There are several common methods for the sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
News Anchor
A news presenter – also known as a newsreader, newscaster (short for "news broadcaster"), anchorman or anchorwoman, news anchor or simply an anchor – is a person who presents news during a news program on TV, radio or the Internet. They may also be a working journalist, assisting in the collection of news material and may, in addition, provide commentary during the program. News presenters most often work from a television studio or radio studio, but may also present the news from remote locations in the field related to a particular major news event. History The role of the news presenter developed over time. Classically, the presenter would read the news from news "copy" which they may or may not have helped write with a news writer. This was often taken almost directly from wire services and then rewritten. Prior to the television era, radio-news broadcasts often mixed news with opinion and each presenter strove for a distinctive style. These presenters were r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
In-ear Monitor
An in-ear monitor (IEMs), in-ear, or colloquially earpiece is a listening device placed into the ear. More narrowly, the term in-ear monitor is defined as such a device used by musicians, audio engineers and audiophiles to listen to music or to hear a personal mix of vocals and stage instrumentation for live performance or recording studio mixing, often specifically in order to hear themselves through a sound system in real time. They are also used by television presenters to receive vocal instructions, information and breaking news announcements from a producer that only the presenter hears. They are often custom-fitted to an individual's ears to provide comfort and a high level of noise reduction from ambient surroundings. Their origins as a tool in live music performance can be traced back to the mid-1980s. A stage monitor system is any system that provides a mix of audio sources to a performer on stage. Traditionally, loudspeakers were placed on the stage directed toward th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propagation Delay
Propagation delay is the time duration taken for a signal to reach its destination, for example in the electromagnetic field, a wire, speed of sound, gas, fluid or seismic wave, solid body. Physics * An electromagnetic wave travelling through a medium has a propagation delay determined by the speed of light in that particular medium, or ca. 1 nanosecond per in a vacuum. * An electric signal travelling through a wire has an propagation delay of ca. 1 nanosecond per . See also radio propagation, velocity factor, signal velocity and mechanical wave. Electronics Logic gates can have a gate delay ranging from picoseconds to more than 10 nanoseconds, depending on the technology being used. It is the time between the gate input becoming stable and the gate output becoming stable. Manufacturers often refer to the time from the input changing to 50% of its final input level, to the output reaching 50% of its final output level; this may depend on the direction of the level cha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Broadcast Auxiliary Service
A broadcast auxiliary service (BAS) is any radio frequency system used by a radio station or TV station, which is not part of its direct broadcast to listeners or viewers. These are essentially internal-use backhaul channels not intended for actual reception by the public, but part of the airchain required to get those signals back to the broadcast studio from the field. usually to be integrated into a live production. Examples include: *studio/transmitter link (STL) * transmitter/studio link (TSL) *remote pickup unit (RPU) *electronic news gathering (ENG) Several of these bands exist, but the most frequently used band is the 2 GHz microwave BAS band for point-to-point transmission from mobile newsgathering units to mountaintop receivers. Seven 12-MHz wide channels exist in the band. In North America, DVB-T, precisely the same modulation technique as European Broadcast, is used, using a constellation of QPSK, 16QAM, or 64QAM, enabling sufficient digital bandwidths at 6 MHz de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Return Link
In communications systems, the return channel (also reverse channel or return link) is the transmission link from a user terminal to the central hub. Return links are often, but not always, slower than the corresponding forward links. Examples where this is true include asymmetric digital subscriber line, cable modems, mobile broadband and satellite internet access. The return channel need not use the same medium as the main channel. For example, some hybrid Internet access services use a one-way cable television system for the forward channel and a dial-up modem for the return channel. Even when the return and forward channels use the same medium, their differences often dictate the use of very different data modulation and coding techniques. For example, in a star radio network, only the central hub transmits on the forward link, so channel access method is a consideration only on the return link. The "forward/return" terminology is also used for spacecraft communication links fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telephone Hybrid
In analog telephony, a telephone hybrid is the component at the ends of a subscriber line of the public switched telephone network (PSTN) that converts between two-wire and four-wire forms of bidirectional audio paths. When used in broadcast facilities to enable the airing of telephone callers, the broadcast-quality telephone hybrid is known as a broadcast telephone hybrid or telephone balance unit. The need for hybrids comes from the nature of analog plain old telephone service (POTS) home or small business telephone lines, where the two audio directions are combined on a single two-wire pair. Within the telephone network, switching and transmission are almost always four-wire circuits with the two signals being separated. Hybrids perform the necessary conversion. In older analog networks, conversion to four-wire was required so that repeater amplifiers could be inserted in long-distance links. In today's digital systems, each speech direction must be processed and transported in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic News Gathering
Electronic news gathering (ENG) or electronic journalism (EJ) is usage of electronic video and audio technologies by reporters to gather and present news instead of using film cameras. The term was coined during the rise of videotape technology in the 1970s. ENG can involve anything from a single reporter with a single professional video camera, to an entire television crew taking a truck on location. Beginnings Shortcomings of film The term ENG was created as television news departments moved from film-based news gathering to electronic field production technology in the 1970s. Since film requires chemical processing before it can be viewed and edited, it generally took at least an hour from the time the film arrived back at the television station or network news department until it was ready to be broadcast. Film editing was done by hand on what was known as " color reversal" film, usually Kodak Ektachrome, meaning there were no negatives. Color reversal film had repla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Breaking News
Breaking news, also called late-breaking news, a special report, special coverage, or a news flash, is a current issue that warrants the interruption of a scheduled broadcast in order to report its details. News broadcasters also use the term for continuing coverage of events of broad interest to viewers, attracting accusations of sensationalism. Formats Breaking news has been common to U.S. mass media since the 1930s, when the mass adoption of radio allowed the public to learn about new events without the need to print an extra edition of a newspaper. Television When a news event warrants an interruption of current non-news programming (or, in some cases, regularly scheduled newscasts), the broadcaster will usually alert all of its affiliates, telling them to stand by for the interruption. The network's feed will then switch to a countdown sequence, to allow any affiliated stations to switch to the network feed. If a national network newscast is in progress when the brea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Live Television
Live television is a television production broadcast in real-time, as events happen, in the present. In a secondary meaning, it may refer to streaming television where all viewers watch the same stream simultaneously, rather than watching video on demand. Shows broadcast live include newscasts, morning shows, awards shows, sports programs, reality programs and, occasionally, episodes of scripted television series. Live television was more common until the late 1950s, when videotape technology was invented. Because of the prohibitive cost, adoption was slow, and some scripted television shows remained live until the 1970s, such as soap operas. To prevent unforeseen issues, live television programs may be delayed, which allows censors to edit the program. Some programs may be broadcast live in certain time zones and delayed in others. Types of programs From the early days of television until about 1958, live television was used heavily, except for filmed programs such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cue Card
Cue cards, also known as note cards, are cards with words written on them that help actors and speakers remember what they have to say. They are typically used in television productions where they can be held off-camera and are unseen by the audience. Cue cards are being used on many late night talk shows including ''The Tonight Show Starring Jimmy Fallon'' and ''Late Night with Seth Meyers'' as well as variety and sketch comedy shows like ''Saturday Night Live'' due to the practice of last-minute script changes. Many other TV shows, including game and reality shows, use cue cards due to their mobility, as a teleprompter only allows the actor or broadcaster to look directly into the camera. History Cue cards were originally used to aid aging actors. One early use was by John Barrymore in the late 1930s. Cue cards did not become widespread until 1949 when Barney McNulty, a CBS page and former military pilot, was asked to write ailing actor Ed Wynn's script lines on large ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
