Audacity is a free, open source, cross-platform audio editor. It is available for free for Windows, Mac OS, GNU/Linux and other operating systems.
Editing
Easy editing with Cut, Copy, Paste and Delete. Also unlimited sequential Undo (and Redo) in the session to go back any number of steps.
Recording
Audacity can record live audio through a microphone or mixer, or digitize recordings from other media.
Import/Export
Import, edit, and combine sound files. Export your recordings in many different file formats, including multiple files at once.
