 In 2011, Celemony released Capstan, a stand-alone audio restoration software that eliminates wow and flutter from digital recordings.In October 2011, Celemony and PreSonus introduced Audio Random Access (ARA), an extension for audio plug-in formats like AU and VST that permits to exchange data between them which is supported by several DAWs.Three years before Celemony was founded, Peter Neubäcker was working on a research experiment with sound.