Audacity - multi-track audio editor and recorder

Audacity

Audacity is a free, easy-to-use, multi-track audio editor and recorder for Windows, Mac OS X, GNU/Linux and other operating systems. The interface is translated into many languages. 

 

You can use Audacity to:

*Record live audio.

*Record computer playback on any Windows Vista or later machine.

*Convert tapes and records into digital recordings or CDs.

*Edit WAV, AIFF, FLAC, MP2, MP3 or Ogg Vorbis sound files.

*Cut, copy, splice or mix sounds together.

*Change the speed or pitch of a recording.

*And more! See the complete list of features.

Audacity

Installation latest version into Linux Mint:

sudo apt-get install audacity