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The professional audio visual industry has companies that provide both hardware, software and services. These organisations are commonly referred to as systems integrators and perform both the installation and integration of different types of AV equipment from multiple manufacturers into spaces to create the AV experience for the user.
Audio equipment is widely used in many different scenarios, such as concerts, bars, meeting rooms and the home where there is a need to reproduce, record and enhance sound volume. Electronic circuits considered a part of audio electronics may also be designed to achieve certain signal processing operations, in order to make particular ...
Audio only: Analog: Often unmarked on consumer audio equipment since it is so common, or labelled with headphones symbol or as "line out". Computers and other equipment sometimes use Microsoft-Intel color coding scheme, especially when there are multiple input/output plugs. 3.5 mm TRS minijack RCA connector: Balanced audio
The Harman Kardon AVR 245 audio/video receiver is the large unit on the bottom. On top of it is a Harman/Kardon DVD player and Samsung set-top box. An audio/video receiver (AVR) or a stereo receiver is a consumer electronics component used in a home theater or hi-fi system.
Audio-visual rental systems have to be able to withstand heavy use and even abuse from renters. For this reason, rental companies tend to own speaker cabinets that are heavily braced and protected with steel corners, and electronic equipment such as power amplifiers or effects are often mounted into protective road cases.
An example of that was the German Reich Postzentralamt (post office) videotelephone network serving Berlin and several German cities via coaxial cables between 1936 and 1940. [ 3 ] [ 4 ] The development of videotelephony as a subscription service started in the latter half of the 1920s in the United Kingdom and the United States, spurred ...
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