A course created by Alan Coady of East Lothian that is intended for oral historians is now listed on the creativity Portal. The course may also be useful to anyone interested in editing spoken word files (mp3, wav etc.) The program is a free download and you can find it at http://audacity.sourceforge.net/
The full resource can be found here: http://edubuzz.org/alancoady/files/2012/04/Sound-Editing-in-Audacity-for-Oral-Historians.pdf