DarkIce is an IceCast, IceCast2 and ShoutCast live audio streamer. It
records audio from an audio interface (e.g. sound card), encodes it and
sends it to a stream server.

DarkIce can encode in the following formats:

 mp3 - using the lame library
 mp2 - using the twolame library
 Ogg Vorbis
 AAC - using the faac library
 AAC HEv2 - using libaacplus library 

DarkIce can send the encoded stream to the following streaming servers:

 ShoutCast
 IceCast 1.3.x and 2.x
 Darwin Streaming Server
 archive the encoded audio in files

WWW: http://code.google.com/p/darkice/