High Quality Content by WIKIPEDIA articles! ArKaos is an application for live visual performance, conceived as a visual sampler for video loops that can be triggered from the computer, or through a hardware interface. The application is available in two versions: ArKaos VJ MIDI, conceived as a live video performance instrument, often used in conjunction with a MIDI keyboard, and ArKaos VJ DMX (a "media server software"), which can be controlled with a DMX console (DMX512 is a communication standard used for stage lighting devices).