- Welcome.
- Basics.
- Object Modifications.
- Obstacles.
- Industry.
- Building Radiation.
- Directivity of Sound Sources.
- Radiation from Chimneys.
- Roads.
- Railways.
- DTM.
- Project Management.
- Extended Analysis.
- Import and Export.
- The Plot Designer.
- Noise Mapping.
- Distributed Calculation.
CadnaA Demo Version
A fully featured CadnaA demo version is available free of charge. 
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CadnaA Users
CadnaA is successfully applied in many different industries in more than 60 countries all over the world. more
Noise Mapping
CadnaA is the most successful noise calculation and noise mapping software available. more
Directivity of Sound Sources
Frequency dependent directivities can be assigned to sound sources in CadnaA. The tutorial shows how to define a directivity and how to use it for point sources.
Working through the chapter 
Basics is a good preparation for understanding this section. The chapter Noise Mapping provides further applications of grids like those used in this section. Though it can be interesting in the context, it is no precondition for understanding directivity.