provisional version Urban Reverberation: Juxtapositions Between Sound and Space Luciana Roça lusroca@gmail.com Nomads.usp - Architecture and Urbanism Institute - University of São Paulo, São Carlos, Brazil Marcelo Tramontano tramont@sc.usp.br Nomads.usp - Architecture and Urbanism Institute - University of São Paulo, São Carlos, Brazil Abstract This paper aims to discuss sound and space conversational relationship, combining theo- retical research and the practice “Urban Reverberation”, a sound intervention held in public space. First, the paper introduces the context of the intervention briefy and after presents its theoretical framework concerning space, interfaces and sound interventions. Then, the article presents the sound intervention discussing its concepts, methods, the interface role and the reactions and comments of the audience, gathered by video recording, photos, and semi-structured interviews. At last, the paper presents its fndings and theoretical refection about the sound intervention. Keywords: public space, sound interfaces, hybrid environments, sound intervention Invisible Places 18–20JULY 2014, VISEU, PORTUGAL