Edwin van der Heide is a Dutch sound artist, who devotes much of his research to the sound percepitp such as size, or as invisible element inherent in space, which becomes predominant when exalted in his acoustic vibrations. In his works, the sound environment becomes 'visible' through appropriate materializations, and is playing in the visible. Examples documented with photos and short audio recordings are: 'Wavescape', with the use of underwater microphones to bring out the sounds present below the water level in the ears of those who follow the bank of a river, with all the their peculiar transmission characteristics in the liquid; Spatial Sounds (100dB at 100km / h), a famous installation, also presented at Ars Electronica, powerful frequencies that correlated with rapid mechanical motions in a mechanism of attraction / repulsion towards the visitor in the middle between a radar and a watchdog sound; Radioscape, in which the territory is to be perceived as a place of frequencies and their distance, by means of the intensity of signals sent by twelve transmitters scattered on urban land. The artist, who in his collaborations with Sensorband also boasts one of Atau Tanaka , has the distinction of being able to develop tableau vivant sound with suitable machines, and make the presence of the sounds perceived as open window of an acoustic space, activating dimensional consciousness of the listener.