Butt (broadcast using this tool) is an easy to use, multi OS streaming tool.
It supports SHOUTcast and Icecast and runs on Linux, Mac OS X and Windows (64 Bit only since version 0.1.20).
The main purpose of butt is to stream live audio data from your Mic or Line input to a Shoutcast
or Icecast server. If you want you can also record your session.
butt is NOT able to stream audio files of any kind.
