The concept of soundscape was incorporated in the late 1960s, from the field of acoustics and music, to address the problem of excessive noise in cities and disorderly urban planning, which has led to residential areas ‒which are supposed to be quiet‒ are juxtaposed with commercial and/or production activities that degrade the quality of hearing life. Starting in 2002, it was realized that the concept of soundscape could also be used as a tool to build a sound identity, whether to preserve historical sound environments, rescue “lost” sound activities from anthropology or create auditorily healthy zones within the cities. Barcelona is the first city that took the initiative to establish large blocks in order to reduce urban noise based on the particular acoustic study of each neighborhood, defining a differentiated sound landscape to preserve. Since 2012, acousticians from all ove...