Caroline Claus is a Brussels-based urban (sound) researcher. Her work concentrates on the position of (sonic) vibrations in a context of urban development. The ontological turn in sound studies, feminist theory and the avantgarde output of independent electronic record labels provide a conceptual and methodological basis for an a-disciplinary research on sonic urbanism as speculative practice. Caroline has contributed to the planning and design of transitory urban railway spaces. She has long term experience in supporting organizations in the social sphere in their organization of outreach-based community involvement in Brussels urban development processes. Caroline studied Sociology, and Urbanism and Spatial Planning and is currently doing a PhD at the KU Leuven Department of Architecture. Claus will be in conversation with Peter Cusack, a field recordist and sound artist with a long interest in the sound environment., as they explore the topic of durational sound practice.