TimeSide python library
Web Audio Components
TimeSide is a set of client and server side components for audio-enabling web sites and applications. It includes a powerful DHTML-based interactive player, with support for time-marking. The server side components provide generic APIs for easy transcoding, metadata embedding, sound visualization and audio analysis.
Official website : http://code.google.com/p/timeside/
It is developed as part of the TeleMeta project.