1. A universal sound sample translator. SOX (SOund eXchange) is a generic utility for translating sound files from one format to another, possibly performing a sound effect at the same time. From Debian 3.0r0 APT

2. SoX (Sound eXchange) is a sound file format converter for Linux, UNIX and DOS PCs. The self-described 'Swiss Army knife of soundtools,' SoX can convert between many different digitized sound formats and perform simple sound manipulation functions, including sound effects. Install the sox package if you'd like to convert sound file formats or manipulate some sounds. From Mandrake 9.0 RPM