Oggify is a program that was written to help manage and convert FLAC audio files into other formats. It ships with MP3 and Ogg Vorbis support. It is intended to allow a user to have a directory tree of FLAC files, and be able to update a tree of MP3 or Ogg files as they add new FLAC files. It has an easy command-line interface with a variety of adjustable settings. It also features a plugin architecture to make it easy to add support for more formats.
XMMS2 is a redesign of the XMMS music player. It features a client-server model, allowing multiple (even simultaneous!) user interfaces, both textual and graphical. All common audio formats are supported using plugins. On top of this, there is a flexible media library to organize your music.
PyKaraoke is a karaoke player which supports the CDG (MP3+G, OGG+G), MIDI (.KAR, .MID), and MPEG formats. The project consists of a GUI frontend and separate pycdg, pykar, and pympg player modules. The GUI provides a full application frontend, with playlist functionality and a searchable database. The pycdg, pykar, and pympg modules can also be used as standalone command-line players or imported into any Python programs that would like CDG, MIDI/KAR, or MPEG playback.
aubio is a library for audio labelling. Features include onset detection, silence detection, beat tracking, and pitch detection. The goal of this project is to provide automatic labelling features to other audio software projects. Functions can be used offline in sound editors and software samplers, or online in audio effects and virtual instruments.
BlogMatrix Sparks! is a streaming Internet radio program recorder and podcast receiver. Downloaded programs are converted (via Mplayer and LAME) into MP3s and stored in your media player (iTunes or Windows Media Player). It uses an interactive directory of thousands of radio stations and podcasts to help you find content. It runs on Windows, Macintosh OS 10.3, and Linux.
The TunePimp library is an audio file tagging library that uses MusicBrainz for track identification/lookup. It will attempt to automatically identify the files, and will present the user with possible matches for files that are not automatically identified. Once the files are identified, it writes new metadata tags to the music files and writes the files to a user-defined directory hierarchy. It supports WAV, MP3, Ogg Vorbis, and FLAC files.