wxLame is a free front-end for the LAME MP3 encoder. It packs a simple interface and options that will allow you to quickly and easily convert your audio files to MP3.
LAME is an educational tool to be used for learning about MP3 encoding. The goal of the LAME project is to use the open source model to improve the psycho acoustics, noise shaping and speed of MP3.

The license of this software is Free, you can free download and free use this audio converter software.