Announcing Jipes 0.9.2
Jipes is an open source library that allows you to efficiently compute audio features. Possible uses for these features are general music information retrieval (MIR) applications or more specifically personal music software like beaTunes. As a matter of fact, since version 3, beaTunes uses Jipes.
To create your own Jipes-based music analyzer in beaTunes, check out the Song Property Analyzer example in the plugin API documentation.