Audacity was originally created by Roger Dannenberg and Dominic Mazzon at Carnegie Mello Universiry in 1999. It is estimated that Audacity has been downloaded over 300 million times.
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.
You can visit Audacity website to get more information.