and transposed to form a song with minimal manual adjustment. Acidized loops contain tempo and key information, so that Acid can properly time-stretch and pitch-shift the clip to fit into an existing track structure. An Acidized loop is a specially prepared WAV audio file, which can be created using an audio-editing tool such as Sound Forge. The technology was created in 1998 for Sonic Foundry's original Acid pH1 software. Sony and Magix later sold series of Acidized loop sample CDs to be used with Acid Pro, as have various third-party companies. Since then, this looping technique has been adopted by the majority of other digital audio workstations on the market, sometimes with competing brand names for the feature, such as Cakewalk Sonar (calling it Groove Clips), and Cubase (calling it Audio Warp). Many DAWs can also directly support Acidized loops intended for use in Acid Pro. Notable users Halley Labs Other versions Acid Music Studio is a simplified, lower-cost version of Acid Pro. The latest version is Acid Music Studio 11. See also List of digital audio workstation software Comparison of digital audio editors List of music software Magix Music Maker References External links Official website Official website since 2016 ACID Tutorial (archive.org) ACID Tutorial (magix.com) Comparison of implementations 1998 software Digital audio workstation software Magix software Windows multimedia software