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A prototype for five-channel surround sound, then dubbed "quintaphonic sound", was used in the 1975 film Tommy. [6]5.1 dates back to 1976, [7] when Dolby Labs modified the track usage of the six analogue magnetic soundtracks on Todd-AO 70 mm film prints.
22.2 is the surround sound component of Ultra High Definition Television, developed by NHK Science & Technical Research Laboratories. As its name suggests, it uses 24 speakers. As its name suggests, it uses 24 speakers.
High-Definition Multimedia Interface (HDMI) is a proprietary audio/video interface for transmitting uncompressed video data and compressed or uncompressed digital audio data from a source device, such as a display controller, to a computer monitor, video projector, digital television, or digital audio device. [3]
Dolby Atmos is a surround sound technology developed by Dolby Laboratories.It expands on existing surround sound systems by adding height channels, interpreted as three-dimensional objects with neither horizontal nor vertical limitations.
The company was founded in 2002 as V Inc. by entrepreneur William Wang and two founding employees. [5] [6] [7] By 2004, Wang changed the company name to Vizio.[8] [9]In 2006, the company's revenue was estimated at $700 million, and in 2007 it was estimated to have exceeded $2 billion. [10]
At launch it had five standard-definition channels and one high-definition channel. The analog service was terminated on Wednesday 24 October 2012 [85] and was replaced by a second multiplex for Saorview. A small number of low power independent analog re-broadcast systems remained licensed until 31 December 2012. [86]