Lava's jWave is a versatile set of packages for Java that allow you to easily create and process RIFF files, with a special emphasis on reading and writing Microsoft PCM .wav files. jWave was initially released as an integrated feature of Lava, a general-purpose class library for Java. By popular demand, it is distributed in its own bundle.
Transcribe! is an assistant for working out a piece of music from a recording. It offers many features aimed at making the transcription job smoother and easier, including the ability to slow down the music without changing its pitch, and to analyse chords and show you what notes are present.
Phelix is a duplicate file removal tool with an acoustical audio matcher. Duplicates with bad or missing music tags but the same or similar sound will be detected by the matcher, even if audio signals are shifted, start at different moments, are ripped with different bit rates, or are ripped with different volumes. It is designed to work well on multi-core systems. Files are never deleted, but are moved to another directory for inspection.