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Buildings 2014, 4(2), 113-138; doi:10.3390/buildings4020113

Integrating Real-Time Room Acoustics Simulation into a CAD Modeling Software to Enhance the Architectural Design Process

Institute of Technical Acoustics, RWTH Aachen University, Kopernikusstraße 5, 52074 Aachen, Germany
Audiovisual Communications Laboratory, Ecole Polytechnique Fédérale de Lausanne, Station 14, CH-1015 Lausanne, Switzerland
Author to whom correspondence should be addressed.
Received: 14 February 2014 / Revised: 3 March 2014 / Accepted: 3 April 2014 / Published: 21 April 2014
(This article belongs to the Special Issue Architectural, Urban and Natural Soundscapes)
View Full-Text   |   Download PDF [16755 KB, 28 April 2014; original version 21 April 2014]   |  


For architects, real-time 3D visual rendering of CAD-models is a valuable tool. The architect usually perceives the visual appearance of the building interior in a natural and realistic way during the design process. Unfortunately this only emphasizes the role of the visual appearance of a building, while the acoustics often remain disregarded. Controlling the room acoustics is not integrated into most architects’ workflows—due to a lack of tools. The present contribution describes a newly developed plug-in for adding an adequate 3D-acoustics feedback to the architect. To present intuitively the acoustical effect of the current design project, the plug-in uses real-time audio rendering and 3D-reproduction. The room acoustics of the design can be varied by modifying structural shapes as well as by changing the material selection. In addition to the audio feedback, also a visualization of important room acoustics qualities is provided by displaying color-coded maps inside the CAD software.
Keywords: room acoustics; simulation; auralization; geometrical acoustics; CAD room acoustics; simulation; auralization; geometrical acoustics; CAD

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Pelzer, S.; Aspöck, L.; Schröder, D.; Vorländer, M. Integrating Real-Time Room Acoustics Simulation into a CAD Modeling Software to Enhance the Architectural Design Process. Buildings 2014, 4, 113-138.

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