KPlaylistCreator is a jukebox for KDE. It scans for MP3 and Ogg Vorbis files, located in various directories, creates a unique tree view with genre, artist, album, and song title information, features a user rates mechanism, a user playlist manager, and a wizard playlist creator, edits tags for both MP3 (ID3 v2) and Ogg Vorbis files, checks directories for new and missing files automatically, sends playlists to a directory, XMMS, or to K3B, displays and sets the album art of MP3 files, creates playlists from a virtual library, and includes popup windows to indicate change of song.
QtOIDUA is a graphical user interface for OIDUA, an Audiolist clone that generates lists of audio files based on their location in a directory tree. It supports all features of OIDUA, and makes it easy to create fields, add directories, choose colors, and set options. Users can even save list configuration files so that they can easily recreate any previously created list.
libmls is a library that can be used to measure the frequency response of a loudspeaker or a room using your computer and an ordinary soundcard. It can perform both MLS (Maximum Length Sequence) and Sinus sweep measurements. It supports ALSA, OSS, and the sound system used in Windows.
Find Duplicate Music Files detects music files that contain the same music, even if the files are differently named, and are in different formats such as MP3, OGG, WAV, WMA, M4A, and RealAudio and contain different or non-existent meta-information such as ID3 tags. The program operates on whole directories of music files, analyzes them, and outputs the filenames of pairs that seem similar, based on their audio fingerprint or perceptual hash.
Noiseclock is a console-based program designed to summarize the amount of time needed to play a given sound file or directory of files. Output can be any combination of days, hours, minutes, and seconds. It supports any of the sound formats supported by TagLib, which are currently MP3, OGG, and FLAC compressed files.