Environmental acoustics: noise in the environment as a technical and social problem.
Environmental noise has measurable causes, documented effects, and concrete technical solutions. We diagnose its behaviour, assess its impact, and design the necessary interventions.
From noise map to effective technical solution.
Environmental noise management involves rigorous technical work at every stage: characterising the sound field in the environment, assessing the impact on people and land use, correctly interpreting the regulatory framework, and designing the most appropriate protection measures.
At SNA we approach environmental acoustic projects with the same diagnostic depth as industrial or building projects.
Our computational modelling capability — including BEM methods for free-field propagation — allows us to build predictive models that optimise protection solutions before execution.
What we do in environmental acoustics.
Acoustic impact assessment
Preparation of acoustic impact studies for new activities, industries, infrastructure, or urban planning projects.
Noise maps
Preparation of strategic noise maps in accordance with European Directive 2002/49/EC and Law 37/2003.
Acoustic barriers and screens
Design and installation of acoustic barriers for the protection of inhabited areas from road, rail, or industrial noise.
Environmental noise monitoring
Continuous monitoring systems for the control of acoustic impact from activities with high temporal variability.
BEM/FEM acoustic modelling
Boundary element methods (BEM) and finite element methods (FEM) to accurately model propagation in geometrically complex environments.
Representative environmental projects.
Industrial silencer via FEM modelling for high-flow blowers
FEM-optimised design balancing acoustic attenuation and aerodynamic efficiency at a wastewater treatment plant.
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Wind farm: detecting maintenance issues through low-frequency analysis
Low-frequency acoustic signature as a predictive maintenance tool for wind turbines.
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Long-distance noise measurement: assessment at over 2 kilometres
Identification of the industrial acoustic signature, discriminated from the environment, at over 2 km distance.
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In situ 3D analysis of road noise propagation in a residential area
Real three-dimensional analysis proving that low frequency is the determining factor of impact on dwellings.
View project →Environmental noise regulatory framework in Spain.
Law 37/2003, of 17 November, on Noise, is the framework regulation governing acoustic pollution in Spain.
Royal Decree 1367/2007, of 19 October, develops Law 37/2003 regarding acoustic zoning, quality objectives, and acoustic emissions.
Precise knowledge of this regulatory framework — and its practical implications for each type of project — is part of the technical work in environmental acoustics.