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
PC based Oscilloscope and Spectrum analyzer using sound card
Free DJ software: everything you need to perform live mixes
lmms projects builder and tagger
A high quality MP3 encoder
A unified display of relevant technical and tag data for A/V files
Fast, bit-perfect audio editor that doesn't modify samples needlessly
C++ class library for sound analysis, synthesis, and morphing
projectM, a MilkDrop compatible opensource music visualizer
An Interactive Source Separation Editor