Operation Modes Most small laser projectors have an automatic and / or sound-tolight mode. If the automatic (stand-alone) mode is active, the showlaser displays preset patterns automatically. If the music (sound-to-light) mode is chosen, the laser triggers beams according to the ambient noise or music. Many laser systems can also be controlled by DMX512, where pre-programmed patterns can be selected with a DMX controller or DMX software.Lasers with ILDA mode can be controlled by laser show control software. Professional laser shows are controlled with ILDA software.