Reactable

The reactable intends to be:

• collaborative: several performers (locally or remotely)
• intuitive: zero manual, zero instructions
• sonically challenging and interesting
• learnable and masterable (even for children)
• suitable for novices (installations) and advanced electronic musicians (concerts)

The reactable hardware is based on a translucent round table. A video camera situated beneath, continuously analyzes the table surface, tracking the nature, position and orientation of the objects that are distributed on its surface, representing the components of a classic modular synthesizer. These objects are passive without any sensors or actuators, users interact by moving them, changing their position, their orientation or their faces (in the case of volumetric objects). These actions directly control the topological structure and parameters of the sound synthesizer. A projector, also from underneath the table, draws dynamic animations on its surface, providing a visual feedback of the state, the activity and the main characteristics of the sounds produced by the audio synthesizer.