Transcoder is a video converter for Linux using GTK+ as GUI toolkit and ffmpeg.
Convert audio and rip CDs into mp3, wma, wav, flac, mp4, ape, m4b, ogg, aac etc.
transcode a Shoutcast/Icecast stream (mp3/ogg vorbis) into any stream types
a plugin for Winamp which adds a "Transcode" option
It transcode audio files from and in 35 formats, edit metadata, rename tags, etc
Encode various audio content in MPEG multichannel audio format introduced.