Audacity Tutorial: How to Record and Edit Audio with Audacity
http://www.guidesandtutorials.com/audacity-tutorial.html

Guides and Tutorials
2006

Abstract:

Audacity is a free cross platform multi track audio editing program from Sourceforge.net. It will let you record, edit, and mix an unlimited number of tracks. Audacity runs on Windows (98 through XP), Mac OS X, and Linux.