Sony ACID Pro is aprofessional digital audio workstation (DAW) software program. It was originally called "ACID pH1" and published by Sonic Foundry, but is now developed and sold bySony Creative Software.
ACID Pro uses Acid Loops (meaning they contain tempo and key information for proper pitch transposition) painted out across the screen to create music tracks. Acidized loop sample CDs are available from Sony, as well as third party companies.
As with most sophisticated software packages, ACID is not a single software product but defines a family of products spanning a significant range of features.[2] In a related-marketing effort, Sony has continued to support ACIDplanet, a content web site originally launched by Sonic Foundry which is aimed at current ACID users, prospective ACID users and the general public. It describes itself as "the Internet's premier site for music, video and unique artists".