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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.
Author (s): Saarelma, Jukka; Califa, Jonathan; Mehra, Ravish
Affiliation:
Aalto University, Aalto, Finland; Oculus VR, Facebook
(See document for exact affiliation information.)
Publication Date:
2018-07-06
Import into BibTeX
Session subject:
Finite-difference time-domain; Room acoustic simulation; Auralization; MPI; Virtual Reality; Augmented reality
Permalink: https://aes2.org/publications/elibrary-page/?id=19609
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Saarelma, Jukka; Califa, Jonathan; Mehra, Ravish; 2018; Challenges of Distributed Real-Time Finite-Difference Time-Domain Room Acoustic Simulation for Auralization [PDF]; Aalto University, Aalto, Finland; Oculus VR, Facebook; Paper PP-1; Available from: https://aes2.org/publications/elibrary-page/?id=19609
Saarelma, Jukka; Califa, Jonathan; Mehra, Ravish; Challenges of Distributed Real-Time Finite-Difference Time-Domain Room Acoustic Simulation for Auralization [PDF]; Aalto University, Aalto, Finland; Oculus VR, Facebook; Paper PP-1; 2018 Available: https://aes2.org/publications/elibrary-page/?id=19609
@article{saarelma2018challenges,
author={saarelma jukka and califa jonathan and mehra ravish},
journal={journal of the audio engineering society},
title={challenges of distributed real-time finite-difference time-domain room acoustic simulation for auralization},
year={2018},
number={PP-1},
month={july},}