Aims
The DREAMSys project aims to improve the current prediction-based noise mapping process according to Directive 2002/49/EC, by making noise measurements over an extended period from a large number of points distributed over the area of interest. The noise data can then be used to verify the noise generated by prediction models.
The project focuses on the development and deployment of DREAMSys, an array of low-cost environmental noise monitoring units, utilising wireless transmission of measured noise data. The data can then be used for mapping the sound fields (in time as well as space, if required), using bespoke developed software.
A key feature of DREAMSys is the use of MEMS microphones. The low cost of these devices allows a large number of monitoring stations to be deployed simultaneously to cover a large area of interest. DREAMSys represents the first attempt to use such microphones for a real-life measurement application.
The DREAMSys project will drive the next generation of instrumentation for low cost noise monitoring geared to a wide range of potential applications, such as strategic noise mapping and action planning, wind farm planning and noise assessment as well as workplace noise measurement and assessment.