8–12 Sept 2026
Europe/Vienna timezone

A new starting point for benchmarks in room acoustic simulations with CHORAS

FA2026/792
10 Sept 2026, 17:00
20m
Galerie B (Messe Congress Graz)

Galerie B

Messe Congress Graz

A12 Numerical, Computational, and Theoretical Acoustics A12.06 Validation and Benchmarks in Computational Acoustics

Speaker

Maarten Hornikx (Eindhoven University of Technology)

Description

There is a standing approach of benchmark studies and round robins in room acoustics modelling methods. These studies are typically carried out by participants who are also the developers of the software packages being evaluated. Although this approach is valuable, it leads to user bias and limits the reproducibility of the results. The rise of open-source software for room acoustics has increased access to the underlying methods for a wider audience. Building on this momentum, the open-source CHORAS platform – the Community Hub for Open-source Room Acoustics Software – was recently launched. It offers a joint framework, that allows multiple open-source room acoustics packages to be integrated in. All methods can be operated and applied to room acoustics problems of choice through a web-based graphical user interface. This platform offers new possibilities for repeatable, transparent and efficient benchmark and round robin studies. This work describes how open-source room acoustics software can be easily evaluated against benchmark rooms within CHORAS, and presents an outlook for future frameworks for round-robins and benchmarks in the field of room acoustics.

Authors

Maarten Hornikx (Eindhoven University of Technology) Marco Berzborn (Eindhoven University of Technology) Silvin Willemsen (Eindhoven University of Technology) Ilaria Fichera (Eindhoven University of Technology)

Presentation materials

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