Paru le 2 déc. 2013 [suite du colloque sur le thème des paysages sonores, avril 2010, Neuchâtel - Suisse].International audienceThis contribution offers to carry on a work begun elsewhere (Battesti, 2009): to focus on sound ambiance of a place, this intangible matter. This soundscape is not only a result of activities within a place (passive definition), but can also be a voluntary collective construction (active definition). In Cairo and its 'sound coating', each neighborhood possesses its own atmosphere, its specific identity given by the citizens, within the urban fabric of the metropolis. The ambiance is not a trivial detail, a simple sound background: this is the first quality put forward by Cairo citizens to explain their strolling he...