Audio annotation tools ...

Here are some interesting tools/projects that I ran across today ...

Annodex
http://www.annodex.net/

MediaMatrix
http://matrix.msu.edu/

BBC Annotatable Audio project
http://www.plasticbag.org/archives/2005/10/on_the_bbc_annotatable_audio_project.shtml

Project Pad
http://www.at.northwestern.edu/spoken/p04annotation.html
http://www.spokenword.ac.uk/annotation.php

http://epresence.tv/ - not an explict audio annotation tool, but I would expect that it could be adapted to do it ... the timeline features are one of the first things that caught my eye