"Frequency and Volume" enables participants to tune into and listen to different radio frequencies by using their own bodies. A computerised tracking system detects participants' shadows, which are projected on a wall of the exhibition space. The shadows scan the radio waves with their presence and position, while their size controls the volume of the signal. The piece can tune into any frequency between 150 kHz and 1.5 GHz, including air traffic control, FM, AM, short wave, cellular, CB, satellite, wireless telecommunication systems and radio navigation. Up to sixteen frequencies can be tuned simultaneously and the resulting sound environment forms a composition controlled by people's movements. View Details.