Spain is trialling city monitoring using sound

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There's more traffic on today's city streets than there ever has been, and managing it all can prove a headache for local authorities and transport bodies. In the past, we've seen the City of Calgary in Canada detect drivers' Bluetooth signals to develop a map of traffic congestion. Now the EAR-IT project in Santander, Spain, is using acoustic sensors to measure the sounds of city streets and determine real time activity on the ground. Launched as part of the autonomous community's SmartSantander initiative, the experimental scheme placed hundreds of acoustic processing units around the region. These pick up the sounds…

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