AMA / AcoLOD / ASYNS: Acoustics

Project Topic

Asymptotical and multiscale methods in acoustics (AMA), Acoustic level-of-detail simulation (Acoustic LOD), Acoustic synthesis of directed signals (ASYNS)

Project Description

Acoustic LOD / AMA / ASYNS are concerned with the simulation and visualization of room acoustics. By adaptive refinement of resolution in raytracing and FEM-based simulation, it is possible to adjust precision and computation time individually to given requirements. This way, we are able to calculate pulse response filters used for auralization at interactive rates. Visualization and editing tools allow to explore the interplay between geometric shapes and reflection properties of these surfaces providing a lot of insight into the nature of acoustics.

Project Members

Project Chair

• Prof. Dr. Axel Klar
• Dr. Jan Mohring (Sect. Transport Processes, Fraunhofer Institute for Industrial Mathematics (ITWM))
• Prof. Dr. Hans Hagen
• Dr. Martin Hering-Bertram (ITWM)

Participating Research Groups

• Sect. Transport Processes (Fraunhofer Institute for Industrial Mathematics (ITWM))
• Technomathematics Group (Department of Mathematics)
• Research Department "Intelligent Visualization and Simulation" (DFKI)
• Computer Graphics Group (Department of Computer Science)

Scientific Personnel

• Dr. Jan Mohring
• M.Sc. Jevgenij Jegorovs
• Dipl.-Inform. Eduard Deines
• Members of International Research Training Group (IRTG) Visualization of Large and Unstructured Data Sets

External Cooperation

Project Events and Achievements

• Project start date: January 1st, 2006
• Project end date: December 31st, 2007

Project Publications

Listener-based analysis of surface importance for acoustic metrics

F. Michel, Eduard Deines, Martin Hering-Bertram, Christoph Garth, Hans Hagen. In: Proceedings of IEEE Visualization 2007. Transactions on Visualization and Computer Graphics. To appear, 2007

Simulation, visualization, and virtual reality based modeling of room acoustics

Eduard Deines, F. Michel, Martin Hering-Bertram, Jan Mohring, Hans Hagen. In: Proceedings of 19th International Congress on Acoustics (ICA) 2007. RBA-05-002-IP, 2007

On the convergence of the WBM solution in certain non-convex domains

J. Jegorovs. In: Proc. International Conference on Noise and Vibration Engineering ISMA 2006, Leuven, Belgium. ID 183, October, 2006

Visualizing the phonon map

Eduard Deines, F. Michel, Martin Bertram, Hans Hagen, G. M. Nielson. In: Proceedings of Eurovis 2006. P. 291--298, 2006

Comparative Visualization for Wave-based and Geometric Acoustics

Eduard Deines, Martin Bertram, Jan Mohring, J. Jegorovs, F. Michel and H. Hagen. In: Proceedings of IEEE Visualization 2006. Accepted for publication, 2006

On the Application of the Wave Based Method in the Case of an Exterior 3D Domain

J. Jegorovs, Jan Mohring. In: Proc. International Conference on Noise and Vibration Engineering ISMA 2006, Leuven, Belgium. ID 184, 2006

Phonon tracing for auralization and visualization of sound

Martin Bertram, Eduard Deines, Jan Mohring, J. Jegorovs, Hans Hagen. In: Proceedings of IEEE Visualization 2005. P. 151--158, 2005