Heres how to add it in yourself for free really easily in few simple steps.

Open up Audacitys Preferences and hit the Libraries tab.

hit the Locate… button.

How To Add MP3 Support to Audacity (to Save in MP3 Format)

Hit Browse and navigate to wherever your LAME encoder library happens to be, and click OK.

image

image

aud-prefs

locate

Screenshot-Locate Lame