CadnaB – Building Acoustics Planning System

CadnaB is the software to calculate airborne and impact sound transmission between rooms for an entire building including airborne sound transmission from and to the exterior via the façade walls....

Key Product Features

Model: CadnaB

ISO 12354-2017 or DIN 4109 Calculation

Digital, Server or Cloud Licence Key

Presentation and Reports

Third-Party Software Import

Auralisation

Airborne Sound Transmission

Impact Sound Transmission

Huge Material Databases

From Floorplan to Full Acoustic Model in Minutes

CadnaB makes acoustic modelling simple and intuitive by allowing you to build complete structures in 2D with real-time 3D visualisation. Walls, doors, windows, and other elements are easy to insert and customise using the built-in construction browser. CadnaB automatically detects junction types based on wall geometry and selected materials, ensuring accurate acoustic representation. You can also add airborne sound transmission paths and effortlessly create full buildings from scratch, import existing layouts, or duplicate storeys for fast, flexible modelling.

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From Floorplan to Full Acoustic Model in Minutes

Add Depth with Verified Building Element Data

Several databases on building element data are available for CadnaB which can be ordered as "Option DB" independently from the calculation software. These databases usually contain spectral data in third-octave band width. Depending on the data origin, however, also data in octave band width, interpolated to third-octave band width, or single number ratings are available.

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Add Depth with Verified Building Element Data

The "Results" mode

The results mode allows you to check all calculated results, which are organised for every two adjacent rooms. This makes the fast-checking of any specific room pair within a building very intuitive. Airborne and impact sound transmission results (single and 1/3 octave bands) Partial results for separating element and flanks (single and 1/3 octave bands) Information about junctions Interior level results The result types shown depend on the selected standard, the evaluation parameters and the transmission situation.

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Auralization*

In CadnaB, the result of the calculation can be made audible with the help of binaural auralisation. This allows the user to imagine the effect of a constructional measure. For this purpose, a source in the form of an audio file is simulated in the sending room or in front of the façade, which is then reduced by the calculated sound reduction index. *Option PRO required

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Fulfillment of requirements

In addition to the numerical results, CadnaB allows the inclusion of requirements according to national or local standards. Many predefined requirements are available within the requirements browser. You can then check whether any room pair fulfils the requirement or not by means of comprehensive visual icons.

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Project Organisation

CadnaB is organised into easy-to-use modes, each designed for a specific part of your project:

Project Mode: Add or edit objects in your model.
Constructions Mode: Choose and assign wall, door, window, or floor types.
Results Mode: Run calculations, view results, and create reports.
Usage Mode: Set how each room is used.
Noise Levels Mode: Define sound levels for rooms and building façades.

Handling and Modelling

CadnaB makes building acoustics planning easy by allowing you to model entire buildings in 2D while instantly viewing changes in 3D. Simply add walls, doors, and windows with a few clicks, and let CadnaB automatically detect junctions and apply construction details. Whether importing existing layouts or building from scratch, you can quickly create and customise full structures with accurate acoustic elements.

CadnaB Overview

Import of Bitmap Floor Plans

CadnaB supports the import of bitmap files, e.g. containing the floor map. Bitmaps can be comfortably calibrated within CadnaB. Afterwards, entire storeys with multiple rooms or even entire buildings can be easily modelled by drawing the elements on top.

CadnaB Overview

Key Product Specifications

Performance to ISO 717-1 & 2

Calculation according to DIN 4109

Exterior Noise Level Calculation

Third-octave band

Auto Junction Types

BITMAP Floor Plans

Sound Level Definition

Interoperability with CadnaR & A

Rigips GmbH

PTB-Report

Saint-Gobain Isover

Saint-Gobain Glass

Cadna Suite

The Cadna suite of software integrates seamlessly with CadnaB and CadnaR, extending its capabilities from environmental noise prediction to indoor acoustics and the detailed acoustic performance of building components.

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CadnaB – Building Acoustics Planning System