A high quality MP3 encoder
Analyzes and adjusts the volume of MP3 files
A free multi-track audio editor and recorder
Multiplatform GUI of MP3Gain which adjusts volume of MP3 files
Linux Studio Plugins Project
Automatic audio RMS normalizer & splitter
Sound Editor for KDE
Free DJ software: everything you need to perform live mixes
C++ class library for sound analysis, synthesis, and morphing
HarmonyHaven: Manage, organize, and play your music collection easily
Reorganize M32/X32 show files
audio to midi converter for solo wind instruments, plus tuner
This page provides free access to Windows builds of SongRec.
Continuous display of audio spectrum from PC input or wave file
lmms projects builder and tagger
Hearing protection for your ears — monitors system volume and warns
Linux program displays the names of musical chords as you play them.
Detection Classification and Localisation of marine mammals
Strobe Tuner for Windows
What's inside your mp3 files REALLY ?