Audiovisual (AV) is

electronic media Electronic media are media that use electronics or electromechanical means for the audience to access the content. This is in contrast to static media (mainly print media), which today are most often created digitally, but do not require el ...

possessing both a

sound In physics, sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the ''reception'' of such waves and their ''perception'' by the ...

and a

visual The visual system comprises the sensory organ (the eye) and parts of the central nervous system (the retina containing photoreceptor cells, the optic nerve, the optic tract and the visual cortex) which gives organisms the sense of sight (the a ...

component, such as slide-tape presentations,

film A film also called a movie, motion picture, moving picture, picture, photoplay or (slang) flick is a work of visual art that simulates experiences and otherwise communicates ideas, stories, perceptions, feelings, beauty, or atmosphere ...

television program Television, sometimes shortened to TV, is a telecommunication medium for transmitting moving images and sound. The term can refer to a television set, or the medium of television transmission. Television is a mass medium for advertising, e ...

s, corporate conferencing, church services, and live theater productions. Audiovisual service providers frequently offer web streaming, video conferencing, and live broadcast services. Computer-based audiovisual equipment is often used in education, with many schools and universities installing projection equipment and using interactive whiteboard technology.

Components

Aside from equipment installation, two significant elements of audiovisual are wiring and system control. If either of these components are faulty or missing, the system may not demonstrate optimal performance.

Wiring Electrical wiring is an electrical installation of cabling and associated devices such as switches, distribution boards, sockets, and light fittings in a structure. Wiring is subject to safety standards for design and installation. Allowable ...

is a skill that not only requires proper cable rating selection based on a number of factors, including distance to the main rack, frequency and fire codes, but wires should also be out of sight, behind the walls and in the ceiling, when possible. System performance also depends on the integrity of the wires. If wires become exposed or mishandled during cabling, the signals may not transmit fluidly, which could compromise the quality. Wires should be neatly organized into the main component and properly labeled for easy reference. Control refers to how the system will operate and how all the installed components will communicate. System automation devices from manufacturers like RTI, Crestron,

Control4 Control4 is a provider of automation and networking systems for homes and businesses, offering a personalized and unified smart home system to automate and control connected devices including lighting, audio, video, climate control, intercom, and ...

, AMX, and others are programmed to integrate the various components of the system and makes the system easy to use from various devices. For example, when programmed appropriately, a control system can allow a TV in zone one to automatically turn off when the music in zone two is turned on. Without proper control programming, the TV in zone one would stay on, even when the music in zone two is turned on.

Residential

Generally, residential audiovisual encompasses in-ceiling speakers, flat-panel TVs, projectors, and projector screens. This could include lighting, blinds, cinema rooms, etc.

Commercial

The professional audiovisual industry is a multibillion-dollar industry, comprising manufacturers, dealers, systems integrators, consultants, programmers, presentations professionals, and technology managers of audiovisual products and services. Commercial audiovisual can be a lengthy process to install and configure correctly. Boardroom audiovisuals can be installed for a number of reasons and often is due to the executives of the organization or business needing to have meetings with colleagues, customers and suppliers around the world. When creating an array of boardrooms for customers it beneficial to balance the pattern from the audio and microphone so there is no degradation in sound quality for the individuals listening.Quin 2014, Universal Home Theatre The proliferation of audiovisual communications technologies, including sound, video, lighting, display, and projection systems is evident in many sectors of society. This includes business, education, government, the military, healthcare, retail environments, worship, sports and entertainment, hospitality, restaurants, and museums. The application of audiovisual systems can be found in collaborative conferencing (which includes video-conferencing, audio-conferencing, web-conferencing, and data-conferencing), presentation rooms, auditoriums and lecture halls, command and control centers,

digital signage Digital signage is a segment of electronic signage. Digital displays use technologies such as LCD, LED, projection and e-paper to display digital images, video, web pages, weather data, restaurant menus, or text. They can be found in public ...

, and more. Concerts and corporate events are among the most obvious venues where audiovisual equipment is used in a staged environment. Providers of this type of service are known as rental and staging companies, although they may also be served by an in-house technology team (e.g., in a hotel or conference center).

References

{{DEFAULTSORT:Audiovisual Multimedia Television terminology

Components

Residential

Commercial

See also

References