The work »Evolution Of Silence« portrays a virtual world populated by artificial creatures. Each creature creates a tone defined by its DNA, and is visually represented by a ray of light inside a holographic projection. The population of these creatures evolves steadily in an evolutionary algorithm.
The virtual world provides an inaudible key as an environmental condition. The more the tone of a creature fits the key, the louder its tone sounds, the stronger and broader its ray of light is, the more attractive it is to the other creatures and the longer it lives. Thus, it can produce many offspring by mating other creatures. Deviant tones however are quiet, have a very thin ray of light and die relatively quickly. This way, the population inside the world evolves from a disharmonic and chaotic soundscape to a harmonic structure, fitting more and more to the key provided by the environment. After two to three minutes the environment key changes randomly, and the soundscape immediately becomes chaotic again. The population will adapt to this new environment over the period of several generations.