LiveIce is a live streaming program that allows input either from your soundcard's line in or from mp3 files to be mixed and re-encoded and then streamed to an icecast server. This means that you can use liveice with your microphone and do live audio broadcasts, or even use a mp3 playlist and use the multi channel support to speed up, slow down, adjust volumes, and mix between the two channels, and then re-encode the data at a lower bitrate to be sent out to a icecast server.