Audacity

Audacity Basics
Audacity | A free cross-platform audio production resource Audacity Tutorials | How to do everything and anything with Audacity, provided by the Audacity team Audacity Plugins | All plugins that Audacity supports

Working with Vocals
Clearing Up Vocals | This video is a tutorial on how to make your vocals clear in audacity step by step by messing with the equalization Removing Vocals | This video is a tutorial on how to remove vocals form a track while keeping the background music Removing Breathing From Vocals | This video is a tutorial on how to remove breathing in audio recording in audacity step by step by editing the noise gate

Importing and Exporting
Importing audio to Audacity | This is an article within the Audacity tutorial page that talks about to import and play files within Audacity Exporting Audacity to MP3 | This article describes how to export an Audacity project into an MP3 file, including the downloading of the LAME library