Vamp Plug-ins
From Audacity Wiki
Vamp is a new feature in Audacity 1.3.4.
Vamp is for analysis of audio. It is a Plug-in format developed by Chris Cannam, author of Rosegarden and Sonic Visualiser.
Vamp can process selected audio and produce a label track with particular parts annotated with labels, based on various criteria.
Current plug-ins include: