If your station DJs only have the ability to broadcast in OGG/Vorbis but your listeners listen mainly in MP3 via shoutcast (for example, Traktor can only broadcast in OGG), this howto guide is for you as it shows how to seamlessly integrate and transcode an Ogg (icecast) broadcast to a shoutcast (mp3) broadcast using some off the shelf, free technology. The way the system works is using the feature in icecast to call programs when a source connects or disconnects. These scripts then invoke (or terminate) a custom perl program which uses ogg123 to receive the ogg stream from the icecast server, pipes it into the lame program to convert to MP3 and then uses the libshout bindings to send the stream to the Shoutcast MP3 server. While this will work with any linux distribution, in this howto I use the Ubuntu and Debian ‘apt-get’ system to install the various required components. If you use a different distribution you should substitute any apt-get commands with your distribution specific package manager (or build from source if you are into punishment).
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Setting up a linux based shoutcast server
If you have ever wanted to do some broadcasting online, its essential you have a server to broadcast from. You could run one of these servers from your home broadband connection, but you upload speed will decide how many listeners you can broadcast to. For example on Virgin Media cable’s 10Mb package in the UK, while the download speed is 10mbps, the upload speed is actually only 512kbps, so that upload speed becomes the limiting factor of exactly how many listeners you can broadcast to. You can also use a server hosted in a datacentre to broadcast, this has the added benefit of not having the upload limits like your home connection does. I provide shoutcast servers for some of the worlds biggest names in internet radio, such as the ever wicked NSB Radio, Glitch FM and The Nuskoolbreaks.co.uk forums. If you are interested in getting server capacity from me, you can email me for a competitive quote.
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