Challenges of Distributed Real-Time Finite-Difference Time-Domain Room Acoustic Simulation for Auralization

Saarelma J, Califa J, Mehra R. Challenges of Distributed Real-Time Finite-Difference Time-Domain Room Acoustic Simulation for Auralization. In: AES Conference: 2018 AES International Conference on Spatial Reproduction - Aesthetics and Science. Audio Engineering Society; 2018. Paper PP-1. Available from: https://aes.org/publications/elibrary-page/?id=19609

@inproceedings{Saarelma2018_19609,
  author = {Saarelma, Jukka and Califa, Jonathan and Mehra, Ravish},
  title = {{Challenges of Distributed Real-Time Finite-Difference Time-Domain Room Acoustic Simulation for Auralization}},
  booktitle = {AES Conference: 2018 AES International Conference on Spatial Reproduction - Aesthetics and Science},
  note = {Paper PP-1},
  year = {2018},
  month = jul,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=19609}
}

TY  - CPAPER
TI  - Challenges of Distributed Real-Time Finite-Difference Time-Domain Room Acoustic Simulation for Auralization
AU  - Saarelma, Jukka
AU  - Califa, Jonathan
AU  - Mehra, Ravish
T2  - AES Conference: 2018 AES International Conference on Spatial Reproduction - Aesthetics and Science
M1  - Paper PP-1
PY  - 2018
DA  - 2018/07/06
UR  - https://aes.org/publications/elibrary-page/?id=19609
PB  - Audio Engineering Society
LA  - en
AB  - Large-scale wave-based room acoustic simulations are commonly considered computationally expensive. Dis-tributed computing can be used to accommodate such methods for wide-bandwidth simulation, but may pose several challenges for real-time execution, such as communication and synchronization latencies between the computing hardware. In this paper, a system for real-time auralization of distributed ?nite-difference time-domain room acoustic simulation is proposed. Several experiments are conducted to measure the performance of the system. A proof-of-concept application where simulated responses from the distributed system are streamed to a virtual reality scene and auralized is constructed. It is found that distributed computing scales well with large off-line simulations, but synchronization latencies become a limiting factor in the implementation of a real-time system.
ER  -