Outdoor noise prediction software

CadnaA is the leading software for calculation, presentation, assessment and prediction of environmental noise. Whether your objective is to study the noise immission of an industrial plant, of a mart, of a new road or railway scheme, or an airport, or even of entire towns and urbanized areas.


Intuitive Handling
Focus your time on the project and not on the software. All input and analysis features are easy and intuitiveto handle.
Enhanced Productivity
Change your view from 2D to 3D within a second. Multiply the modeling speed by using various shortcuts and automation techniques.
Advanced Analysis
Execute predefined or customized analysis of all data contained in the model: building evaluation, hot spot detection, conflict map, etc.
Noise Mapping
Accelerate your calculation time with distributed calculation and multithreading

See our technology in action.

Schedule a free demo to get a first-hand look at how our solutions support your business.

CadnaA Aircraft Noise

Introduction to CadnaA Option FLG (Aircraft Noise), now featuring INM (Integrated Noise Model) implementation.

3D view

CadnaA offers extremely powerful and extensive features for 3D visualization. With just one mouse click, any graphic view of the project can be generated. Dynamic 3D allows in real-time to drive through or even fly over your project model, e.g. a city or a large industrial plant, where buildings can be displayed with great realism thanks to textures. It is possible to stop anytime, look around and – by using mouse and arrow keys – continue moving in any direction. A video in AVI format can be created of every tour through the project model. A mistake inside a 3D model (wrong height of a building), CadnaA allows to click directly on an object in the 3D view. The result can be viewed immediately on your screen. This allows comfortable check and alteration of the model.

Large projects

CadnaA allows to handle projects of any size. There are practically no limits set by the software regarding number of objects (sources, buildings, contour lines, receiver points etc.). A large refinery with thousands of sources is just as easily assessed as cities or entire regions with numerous buildings and complex ground model. All project data are stored very conveniently in one file also including all project variants. This also allows very easy administration of different scenarios.

The only limitation for large projects is due to hardware memory. To break this one, CadnaA offers powerful features (PCSP technology for distributed calculation) and extensions (Option CALC: Networked distributed calculation). In fact with CadnaA you can handle projects of any size.

Objects handling

CadnaA offers very powerful features for the manipulation and representation of objects. Most actions need only one or a few mouse clicks to be performed. Some effective features are for example:

  • copy graphics or tables via the clipboard
  • automatic labeling of objects
  • coloring of objects based on parameters
  • addressing actions to a group of objects
  • modifying object attributes with string-operations
  • direct access to objects and their data

Grid aritmetic

With CadnaA noise maps can be combined using an extremely flexible strategy. With the command “grid arithmetic” any user defined expression with complete noise maps as operands is evaluated and produces a new map. For example, a road noise map r1 and a train noise map r2 used with the formula r1++r2 produces a new map with the noise levels of road and railway added up energetically.


CadnaA offers already numerous powerful features. But with the following extensions you can even increase the range of features to get your work organized in a more efficient way or to enter new fields of application.

New aircraft noise standards

Two new standards for aircraft noise calculations are now implemented into CadnaA:

  • INM 7.0d (integrated Noise Model)
  • ECAC Doc. 29, 3rd edition

With these new functionalities, CadnaA becomes the most complete solution available in the noise prediction software market for airport noise assessment.

CadnaA software at a glance

The easy-to-use software solution for the calculation and assessment, prediction and presentation of noise exposure and impact of air pollutant.

Request pricing

Connect with Acoem

Contact us to learn more about our solutions, services, and training programs.

Would you like to…?