Overlay was a site-specific sound installation for the panoramic window front of the Humboldt-Box Berlin, a temporary building located alongside the Lustgarten in downtown Berlin.
Overlay plays with the visual and acoustic perception of visitors and directly relates to the view they have when looking out of the large window. The installation takes advantage of the fact that the window panes normally isolate all incoming sounds. Using special loudspeakers that transmit sound to the window panes and thus use them as resonant surfaces for sound reproduction, a soundscape composition becomes audible that covers the panoramic view like a veil. The artificial soundscape is composed of recordings (field recordings) taken at different times of day around the Lustgarten and in the field of view of the window. The playback across the full width of the window front gives visitors the impression that the window is permeable. Overlay adds a believable sound space to the view, but through the asynchrony of the visible and audible events, it affects the perception of time and space, ultimately directing consciousness to the listening process itself.