An encoder prepares the signal by compressing it into a streaming format. The stream is then sent to a dedicated radio server with plenty of bandwidth.
Shoutcast DSP
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. Clients are available for Windows, FreeBSD, GNU/Linux, Mac OS X and Solaris.
Shoutcast DSP - http://www.shoutcast.com/download
Sam Broadcaster
An easy all in one solution for mp3 djs who which to have advance automated control over their station.
Sam Broadcaster - http://www.spacialaudio.com/products/sambroadcaster/
Virtual DJ Broadcaster
A great entry solution for DJs who mix with mouse and keyboard without the need of advanced soundcard configurations.
Virtual DJ Broadcaster - http://www.virtualdj.com/products/broadcaster.html
Simplecast
SimpleCast takes audio from your line-in, microphone or even any audio being played over your soundcard and then encodes this audio in real-time to be streamed over the internet to listeners across the world - all with a single click of a button. This application is not only easy to use, but aslo extremely powerful ... Metadata adaptors allows external applications to send song and captioning data to SimpleCast. (Already has native support for most major automation systems). Gather real-time statistics from all your streaming servers so you know how many listeners are connected at any given time and generates song history logs.
Simplecast - http://www.spacialaudio.com/products/simplecast/
Butt (Broadcast Using This Tool)
Butt is a multi OS streaming tool. It supports ShoutCast and IceCast. butt runs on Linux, MacOS and Windows. At the moment you can't feed butt directly with audio files.
Butt - http://butt.sourceforge.net/
