Howto: Capture/Record live streaming audio on Mac OS X (Leopard, Snow Leopard, Lion, Mountain Lion, Mavericks, Yosemite, El Capitan) | Manoranjan's Tech blog
File:Commandline Output of LAME command, on Mac OS X 10.7.2.png - Wikimedia Commons
felt tip blog — Guide for saving as MP3 in Sound Studio
How to Export an Audacity File As an MP3 in 2 Simple Ways
MP3 Encoder on the Mac App Store
Installing LAME MP3 encoder for Audacity Windows and Mac Step 3: “Save” the file to your default download location or other