Interactive Sound Propagation For Dynamic Scenes Using 2d Wave Simulation

Rosen, Matthew; Godin, Keith W.; Raghuvanshi, Nikunj

Interactive Sound Propagation For Dynamic Scenes Using 2d Wave Simulation

Files

v39i8pp039-046.pdf (421.77 KB)

planeverb_720p.mp4 (81.91 MB)

Date

2020

Authors

Rosen, Matthew
Godin, Keith W.
Raghuvanshi, Nikunj

Publisher

The Eurographics Association and John Wiley & Sons Ltd.

Abstract

We present a technique to model wave-based sound propagation to complement visual animation in fully dynamic scenes. We employ 2D wave simulation that captures geometry-based diffraction effects such as obstruction, reverberation, and directivity of perceptually-salient initial sound at the source and listener. We show real-time performance on a single CPU core on modestly-sized scenes that are nevertheless topologically complex. Our key ideas are to exploit reciprocity and use a perceptual encoding and rendering framework. These allow the use of low-frequency finite-difference simulations on static scene snapshots. Our results show plausible audio variation that remains robust to motion and geometry changes. We suggest that wave solvers can be a practical approach to real-time dynamic acoustics. We share the complete C++ code of our ''Planeverb'' system.

        @article{10.1111:cgf.14099
,
journal = {Computer Graphics Forum},
title = {{Interactive Sound Propagation For Dynamic Scenes Using 2d Wave Simulation
}},
author = {Rosen, Matthew and 
Godin, Keith W. and 
Raghuvanshi, Nikunj
},
year = {2020
},
publisher = {The Eurographics Association and John Wiley & Sons Ltd.
},
ISSN = {1467-8659
},
DOI = {10.1111/cgf.14099
}
}