Below the Line

www.diacontraelruido.es

This is the massive Madrid poster, one of several giant posters sited
by the company across major cities in Europe (Berlin, Madrid, Brussels
and Milan) to measure the ambient noise level – and to promote its
range of quiet appliances. Decibel meters connected remotely to LED
screens on the giant poster will display the current decibel level 24
hours a day. Watch as the meter constantly changes throughout the day
and night.

Vïa: AEG