Reverberations count as the acoustic signature of a space, audible expressions of dimension and materiality. Space Against Itself is a generative sound installation that makes repeated futile attempts at cancelling out these sonic signatures by occupying and saturating the frequencies at which the building makes itself heard most strongly. Listening machines construct acoustic maps of interiors by identifying their specific resonant properties. The sounds of the building itself are amplified and chiselled into shape in order to create an intensive contrast between the expansive and the intimate. Space Against Itself works with a notion of structural sound and treats architecture as harmonic potential. Repeated attempts are made at forcing an intensive and intimate experience of vast volumes through the manipulation of their sonic-material properties, vibrational elements that testify to that which is energetic and ephemeral in the production of space.