Industrial applications of hybrid room acoustic simulations using a combination of discontinuous Galerking method and Geometrical Acoustic methods - Benchmark case study.

Oskarsdottir G, Pind F, Pedersen J. Industrial applications of hybrid room acoustic simulations using a combination of discontinuous Galerking method and Geometrical Acoustic methods - Benchmark case study. In: AES Conference: AES 2024 International Acoustics & Sound Reinforcement Conference. Audio Engineering Society; 2024. Paper 17. Available from: https://aes.org/publications/elibrary-page/?id=22357

@inproceedings{Oskarsdottir2024_22357,
  author = {Oskarsdottir, Gudrun and Pind, Finnur and Pedersen, Jesper},
  title = {{Industrial applications of hybrid room acoustic simulations using a combination of discontinuous Galerking method and Geometrical Acoustic methods - Benchmark case study.}},
  booktitle = {AES Conference: AES 2024 International Acoustics \& Sound Reinforcement Conference},
  note = {Paper 17},
  year = {2024},
  month = jan,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=22357}
}

TY  - CPAPER
TI  - Industrial applications of hybrid room acoustic simulations using a combination of discontinuous Galerking method and Geometrical Acoustic methods - Benchmark case study.
AU  - Oskarsdottir, Gudrun
AU  - Pind, Finnur
AU  - Pedersen, Jesper
T2  - AES Conference: AES 2024 International Acoustics & Sound Reinforcement Conference
M1  - Paper 17
PY  - 2024
DA  - 2024/01/06
UR  - https://aes.org/publications/elibrary-page/?id=22357
PB  - Audio Engineering Society
LA  - en
AB  - Combining different acoustic computational approaches has been practised for decades. In this study we introduce an industrial application of method combination, where a wave-based approach with the discontinuous Galerkin method is used for simulating the lower frequency bands and a hybrid geometrical acoustics method of the pressure-based image source method and stochastic raytracing is used to simulate the higher frequency bands. The industrial application was designed with accuracy and user friendliness as the main criteria. To verify the accuracy of this method combination, a round robin study from PTB Institute is presented as a benchmark case for comparison. The findings from this benchmark study will be explored, as well as a discussion of the challenges and successes of combining these wave-based and geometrical acoustic approaches. Results are compared for T30 for a single receiver as well as for T30 distribution over multiple sources, and the presented method matches the measurements to much greater accuracy than other industrial solutions.
ER  -