Resonant Chamber is an interior envelope system that deploys the principles of rigid origami to transform the acoustic environment through dynamic spatial, material and electro-acoustic technologies. Our aim is to develop a soundsphere able to adjust its properties in response to changing sonic conditions, altering the sound of a space during performance and creating an instrument at the scale of architecture, flexible enough that it might be capable of being played. The project is developed through three streams of iterative research and development in both computational testing and full-scale prototype installation: Dynamic Surface Geometries; Performative Material Systems; and Variable Actuation and Response. Resonant Chamber is funded through the 2011 Research through Making Grant, U-M Office of the Vice President for Research, 2011 Small Projects Grant, U-M Center for Wireless Integrated Microsystems, Social Science and Humanities Research Council of Canada Research Creation Grant.