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22-04-2010, 12:30 AM
Internet radio is a broadcasting service transmitted via the Internet. Not every internet "radio station" has a corresponding traditional radio station. Many internet radio stations are completely independent from traditional ("terrestrial") radio stations and broadcast only on the Internet. Broadcasting on the Internet is usually referred to as webcasting since it is not trasmitted broadly through wireless means but is delivered over the World Wide Web. e-Radio suggests a streaming media that presents listeners with a continuous stream of audio to which they have no control much like traditional broadcast media. It is not synonymous with podcasting which involves downloading and therefore copyright issues. Nor does e-Radio suggest "on-demand" file servering.
Because the radio signal is relayed over the Internet, it is possible to access the stations from anywhere in the worldÃƒÂ¢â€šÂ¬for example, to listen to an Australian radio station from Europe or America. This makes it a popular service for expatriates and for people who have interests that may not be adequately catered for by their local radio stations . Some of the internet radio services offer news, sports, talkback, and various genres of musicÃƒÂ¢â€šÂ¬everything that is on the radio station being simulcast over the internet with a netcast stream.
Internet Radio need a specially designed webserver SHOUTcast. SHOUTcast is a multiplatform freeware audio streaming technology, developed by Nullsoft. SHOUTcast uses MP3 or AAC encoding of audio content and HTTP (though multicast can be used) as the transport protocol to broadcast web radio, also known as Internet radio. Both servers and clients are available for Windows, FreeBSD, GNU/Linux, Mac OS X and Solaris.
SHOUTcast software allows users to set up their own Internet radio servers using provided software. The output format is supported by multiple clients including the widely popular Nullsoft Winamp, XMMS, Zinf and Apple iTunes. Using the software, users may set up radio servers for their own needs. Current uses include listening to music, watching video and listening to live events.
The most common use of SHOUTcast is for Internet broadcasting. Using SHOUTcast it is possible to cheaply set up an Internet broadcasting station, allowing hobbyists to set up their own broadcasting distribution network for a fraction of the cost of a traditional AM broadcasting or FM radio station. Traditional radio stations also use SHOUTcast to extend their presence onto the Web.
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