Sonasphere is an audiovisual software application by Nao Tokui which provides the user with a 3D canvas onto which they can add objects. The objects can be sound samples, effects or mixers, and it is possible to connect these objects together to modify the sound. Parameters of the objects can be assigned to 3D coordinates for the 3D canvas, so a filter object can have the cutoff frequency assigned to the x axis, the resonance to the y. The distance between a connected sound object and filter object control the volume. In addition gravitational forces act between each of the objects to create a more dynamic and chaotic environment.