On-going project about sounds in the cities. From field-recordings made in different cities, a sound postcard is produced. A taylor made software (in Processing) calculates the mean frequency, and then adds a sinus at that frequency on the sound postcard.
This sonic Ariadne’s thread is like a sound artifact merging with the urban soundscapes, as if it had been there since the beginning of time.
The first two cities were Paris and Berlin.