By Topic

Domain decomposition method for the digital waveguide mesh

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Moonseok Kim ; Centre for Interdiscipl. Res. in Music Media & Technol., McGill Univ., Montreal, QC, Canada ; Scavone, G.P.

The digital waveguide mesh (DWM) is a discrete-time numerical method for modeling the propagation of traveling waves in multidimensional mechanical and acoustic systems. Despite the fact that the DWM is not as computationally efficient as a 1-D digital waveguide, it is still widely used for sound synthesis of musical instruments and for acoustical modeling of rooms because of the simplicity of the implementation. However, large-scale realization of the digital waveguide mesh is not adequate for many simulations because of its relatively high and direction-dependent dispersion error. The influence of dispersion error can be reduced by using a denser mesh structure though with extra computational costs. This paper presents a method for efficiently interconnecting rectangular DWM sub-domains of different mesh density. The method requires only small overlapped buffer regions to be added for each sub-domain. This allows the selective use of higher and lower density grids in a single simulation based on spatially-dependent dispersion error criteria.

Published in:

Applications of Signal Processing to Audio and Acoustics, 2009. WASPAA '09. IEEE Workshop on

Date of Conference:

18-21 Oct. 2009