CadnaA

The name stands for Computer Aided Noise Abatement.¹ CadnaA models noise from industrial sites, road and railway networks, airports and whole towns.¹ Its calculation standards include ISO 9613-2, the CNOSSOS-EU methods behind the EU Environmental Noise Directive, Germany's RLS-19 and TA Lärm, the UK's CRTN, the US TNM 2.5 and China's HJ2.4. Some are dated as recently as 2024.¹ Sister products CadnaB and CadnaR cover building acoustics and room acoustics.¹

The typical uses all come before anything is built: strategic noise maps under the Environmental Noise Directive, noise studies for planning and permitting, industrial plant assessments, traffic noise forecasts, and the design of noise control measures such as barriers.¹ Dedicated source types exist for wind turbines and for tennis, pickleball and padel courts.¹ Models are built on the map or imported from CAD, GIS (shapefile, GeoPackage), OpenStreetMap, CityGML and raster terrain files.¹ Results export back to GIS, Google Earth and office formats.¹ Projects can run to 16 million objects per source type.¹ DataKustik says consultancies, authorities and industry use it in more than 60 countries.¹

CadnaA is Windows-only software for x86-64 machines, not Apple silicon.¹ It is sold in tiers from CadnaA Basic to CadnaA City & Airport, by one-time purchase or subscription, and licensed through a USB dongle or cloud licensing.¹ Calculation can be spread over many cores and, with the CALC products, over other machines.¹ A free demo version is offered.¹