20_08_08-10_51-MEtro.mp3

Barcelona's Subway train sounds.

It's part from any modern city. People talking while it's moved by the underground from one place to another. Noise from machines. Acoustic signals. Booting. Stopping. After opening doors, a drastic level difference, due to external noises coming from the stations, amplified by their architecture: closed and using stoned materials. Mechanical noises moving wagons. Mechanical voices through the speakers to site passengers. Suddenly, in a stop, a control of the tickets. Tickets are required to the passengers, and thanks are given to those that payed. They go down on the next station. Sounds keep going: passengers talking, wheels over the rails, taca-taca from the hard parts on the wagon... and, always, motor sounds, lots of them...