Cellphones to fight sound pollution through ‘Noise Tube’
November 19th, 2009 - 2:06 pm ICT by ANILondon, November 19 (ANI): Cellphones could soon be used to fight noise pollution, with a downloadable software called NoiseTube using people’s smartphones to monitor noise pollution.
According to a report in New Scientist, the software has been developed by Nicolas Maisonneuve’s team from the Sony Computer Science Laboratory in Paris, France.
“The goal was to turn the mobile phone into an environmental sensor,” said Maisonneuve.
The app records any sound picked up by the phone’s microphone, along with its the GPS location.
Users can label the data with extra information, such as the source of the noise, before it is transmitted to NoiseTube’s server.
There, the sample is tagged with the name of the street and the city it was recorded in and converted into a format that can be used with Google Earth.
Software on the server checks against weather information, and rejects data that might have been distorted by high winds, for instance.
Locations that have been subjected to sustained levels of noise are labelled as dangerous.
The data is then added to a file, which can be downloaded from the NoiseTube website and displayed using Google Earth.
Currently, the software works on only a handful of Sony Ericsson and Nokia smartphones as it has to be calibrated by Maisonneuve’s team to work with the microphone on any given model.
“We are currently working on a method to automatically calibrate microphones,” he said.
The project is drawing interest from various agencies around the world.
“NoiseTube could provide an extra tool to noise experts and decision makers in environmental noise management,” said Andrea Iacoponi of ARPAT, an environmental protection agency based in Pisa, Italy. “It can be used to improve the accuracy of European Directive strategic noise maps,” she added.
According to Amrit Kaur of the Awaaz Foundation, a non-governmental organisation based in Mumbai, India, “NoiseTube has empowered us to offer citizens a real tool to bring a change in their living conditions.” (ANI)
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