The 'sonozones' project investigates sound art practices in public places through personal and public acts of listening and sounding. The topic is explored using artistic processes developed on site in Mülheim in the Ruhr region of central Germany. Four sound art practitioners collaboratively explore ideas and concepts that question the significance and impact of listening and sounding in public places and suburban and urban spaces. The project collects traces and artefacts of the artistic processes as a basis for investigations into key elements of the individual and social dimensions of sound art. The exploration of forms sets the stage for experiments, interventions, and performative presences carried out on site by the artists. A continuous dialogue and the collection of verbal reflections frames these activities. In addition to texts, this exposition lays out a collection of audio recordings, photographs, and videos in order to document and convey sensory experiences as well as thoughts.