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Digital multimedia broadcasting ( DMB) is a digital radio transmission technology developed in South Korea [1] [2] [3] as part of the national IT project for sending multimedia such as TV, radio and datacasting to mobile devices such as mobile phones, laptops and GPS navigation systems. This technology, sometimes known as mobile TV, should not ...
Digital broadcasting is the practice of using digital signals rather than analogue signals for broadcasting over radio frequency bands ( radio broadcasting ). Digital television broadcasting (especially satellite television) is widespread. [citation needed] Digital audio broadcasting is being adopted more slowly for radio broadcasting where it ...
Broadcasting. Broadcasting is the distribution of audio or video content to a dispersed audience via any electronic mass communications medium, but typically one using the electromagnetic spectrum ( radio waves ), in a one-to-many model. [1] Broadcasting began with AM radio, which came into popular use around 1920 with the spread of vacuum tube ...
Digital is defined as any data represented by a series of digits, and media refers to methods of broadcasting or communicating this information. Together, digital media refers to mediums of digitized information broadcast through a screen and/or a speaker. [1]
Multimedia journalism is the practice of contemporary journalism that distributes news content either using two or more media formats via the Internet, or disseminating news report via multiple media platforms. First time published as a combination of the mediums by Canadian media mogul, journalist and artist, Good Fridae Mattas in 2003. [1]
Digital television ( DTV) is the transmission of television signals using digital encoding, in contrast to the earlier analog television technology which used analog signals. At the time of its development it was considered an innovative advancement and represented the first significant evolution in television technology since color television ...
Digital transmission by radio waves includes digital broadcasting, and especially digital audio radio services. Types [ edit ] In digital broadcasting systems, the analog audio signal is digitized , compressed using an audio coding format such as AAC+ ( MDCT ) [1] or MP2 , and transmitted using a digital modulation scheme.
In North America, digital SDTV is broadcast in the same 4:3 aspect ratio as NTSC signals with widescreen content being center cut. However, in other parts of the world that used the PAL or SECAM color systems, standard-definition television is now usually shown with a 16:9 aspect ratio , with the transition occurring between the mid-1990s and ...