Scantek Inc  //  Products  //  Prediction Software  //  Room Acoustics Modeling CadnaR

CadnaR is a powerful software for calculation of noise in industrial halls as well as for planning of noise abatement measures in rooms with workplaces. CadnaR is used by professionals  who deal with noise mitigation at work places or evaluate optimization of rooms under consideration of psychoacoustic parameters.

CadnaR was especially designed for the particular requirements of the following groups:
  • Acousticians
  • Authorities with responsibility for Immission protection
  • Architects (construction)
  • Architects (interior designers)
  • Research Facilities.
  • Manufacturers of building acoustics products
  • Professionals who deal with office design
  • Designer of electro-acoustic devices

CadnaR 3DRay

Recommended Packages

Recommended Software Packages

Here you can find some software package recommendations that cover all applications:
Package  Basic Module  Calculation & Handling Visualization  Project Organization Option Audio
Basic Audio        
Advanced Audio        
Expert Audio   ♦       


Please visit DataKustik's website or contact us for more information on the configurations and options available with CadnaR. 


Features and Options

In order to provide a suitable and price efficient solution for each area of application, the various functions of CadnaR are subdivided to one Basic Module and four different options. The performance of each Option will be enhanced continuously.


CadnaR Basic Module


  • Image source or particle method calculation (not in combination)
  • Sources: Point source type
  • Obstacles: barrier and box type obstacle
  • Calculation at single receivers.
  • Directivity import/export and setup
Option: Calculation and Handling  


  • Additional calculation methods: Image source and Particle method combined, VDI 3760, Diffuse.Field (Statistic)
  • Additional Sources: Line, Area source, Vertical area source, Box type source.
  • Additional handling features: Duplication and Transformation of single objects.
  • Additional Calculation results: Grid (2D), Voxel Grid (3D).
  • Grid arithmetics.



Option: Visualization



  • Bitmap import.
  • Additional presentation of calculations:
    3D Iso-Faces, 3D Iso-Lines,
    3D Iso-Lines (height=level).
  • Enhanced analysis of results: 3D ray display,
    Particle Ping-Pong.
  • Plot-Designer for the
    professional presentation of


Option: Project Organization



  • Creation of groups and variants.
  • ObjectTree organization of projects.
  • Simultaneous modification of objects.
  • Protocol of calculations enabled.
  • Partial level calculation.
  • Library Manager.


Option: AUDIO



  • Room Impulse Response calculation at receivers and grids.
  • Room Acoustic Diagram.
  • Room Impulse Response parameters: Early Decay Time (EDT), T10, T20, T30 reverberation times.
  • Definition / Clarity (D50).
  • Clarity Index, for speech (C50).
  • Clarity Index, for music (C80).
  • Center Time (TS).
  • Articulation Loss (Alcons%).
  • Speech Transmission Index - male (according to IEC 60268-16:2011) (STI_male).
  • Speech Transmission Index - female (according to IEC 60268-16:2011) (STI_female).
  • Speech Transmission Index for Public Address Systems (STIPA_IR).
  • Common Inteligibility Scale (CIS).


Please visit DataKustik's website or contact us for more information on the configurations and options available with CadnaR.

Fields of Application

Fields of Application

CadnaR, with its various features and software configurationes, covers the widest range of indoor acoustic applications.

Some Applications:

  • Determine noise impact at work spaces based on sophisticated calculation methods.
  • Use CadnaR to ensure that health and safety guidelines are followed within industrial facilities.
  • Calculate noise distribution in lecture- and conference rooms.
  • Optimize the acoustic design of recreation rooms or restaurants.
  • Calculate the acoustical effect of walls or acoustical panels with locally varying absorption.
  • Determine parameters describing the quality of room acoustics and other psychoacoustic parameters related to music and / or speech performances.
  • Plan different audio setups in multi – purpose halls according to uses (concerts, conferences, etc.) in just one file with different variants.

Baffle System Design



Noise level distribution at an industrial plant



Acoustic quality in halls



Open plan office acoustic optimization



Please visit DataKustik's website or contact us for more information about CadnaR.

More Information

Calculation Methods


CadnaR includes the following calculation methods, which in the case of the image source method and the particle model also can be combined:


Image Sources

With this method, reflections occurring at the room surfaces and at obstacles (also at reflecting sources) are modeled by rays. Each ray path is tracked individually considering reflections from any kind of obstacles (and the room surfaces) up to the specified order of reflection accounting for their respective reflective properties. This method is applicable to any kind of room shape.Particle Model


Particle Model

With the particle model, a large number of "particles" are emitted randomly from each source location into all room directions. This method considers the reflective properties of the obstacles and the room surfaces up to the specified order of reflection. This method is applicable to any kind of room shape.


VDI 3760

The procedure as standardized in the guideline VDI 3760 is applied which is based on the image source method with diffraction and damping according to Kuttruff and Jovicic.



This setting calculates the sound pressure level according to the statistical theory of the reverberation in rooms by Sabine.


Please visit DataKustik's website or contact us for more information about CadnaR. 



CadnaR Introduction Video 



Please visit DataKustik's website or contact us for more information about CadnaR.  


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