Audacity is a free, open-source, multi-track audio editor. A free guide to using it with JAWS, also useful with other screen readers, is available.
This AppleVis podcast is entitled "Voice To Apps: Bringing Voice Recognition to Messaging, Email, Facebook Twitter and More"
These tips are from Top Tech Tidbits. You can subscribe to Top Tech Tidbits on the Flying Blind, LLC Website at: http://www.flying-blind.com.