SoXSoX SoX Sound eXchange (SoX) is a cross-platform audio editing software. It has a command-line interface, and is written in standard C. It is free software, licensed under GPL-2.0-or-later, with libsox licensed under LGPL-2.1-or-later, and distributed by Chris Bagwell through SourceForge. History. SoX was created in July 1991 by Lance Norskog and posted to the Usenet group alt.sources as "Aural eXchange: Sound sample translator". With the second release (in November the same year) it was renamed "Sound Exchange". Norskog continued to maintain and release SoX via Usenet, File Transfer Protocol (FTP), and then the web  until early 1995, at which time SoX was at version "11 (gamma)". In May 1996, Chris Bagwell started to maintain and release updated versions of SoX, starting with version "sox-11gamma-cb". In September 2000, Bagwell registered the project at SourceForge with project name "sox". The registration was announced on 4 September 2000 and SoX 12.17 was released on 7 September 2000. Throughout its history SoX has had many contributing authors; Guido van Rossum, best known as creator of the programming language Python, was a significant contributor in SoX's early days. Features. Some of SoX's features are: Examples. SoX  being used to process some audio: Playing some audio files: Vulnerabilities. SoX has had several vulnerabilities listed in the National Vulnerability Database since its last public release in 2015. These vulnerabilities include stack and heap overflows and denial-of-service attacks. SoX Sound eXchange (SoX) is a cross-platform audio editing software. It has a command-line interface, and is written in standard C. It is free software, licensed under GPL-2.0-or-later, with libsox licensed under LGPL-2.1-or-later, and distributed by Chris Bagwell through SourceForge. History. SoX was created in July 1991 by Lance Norskog and posted to