Improvements: Audacity now includes the LAME mp3 encoder. Audacity 2.3.2 replaces all previous versions for Windows, macOS and Linux. Audacity is a free open source audio editor and recorder. In this Audacity video tutorial, I will show you How to Install LAME MP3 Encoder. You can use Audacity to,Record live audio,convert tapes and records into digital recordings or CDs,cut, copy, splice or mix sounds together. LAME for Audacity - Audacity is a free, easy-to-use and multilingual audio editor and recorder for Windows, Mac OS X, GNU/Linux and other operating systems.