This text addresses the relationships between human, the physical sound space and the psychic sound space. Listening is seen as an aesthetic and sensitive experience of reality directed towards the environmental, social and private spheres. The physical sound space is characterized by the components of the soundscape, while the psychic sound space responds to the qualities of a listening experience focused on attention and alertness. The sound march is a pedagogical, artistic and multidisciplinary strategy that can invite to adopt a critical stance with regard to policies and practices that affect environmental issues.