Campos-2005a
From IEETA
Article
| Title | On the Computational Efficiency of Different Waveguide Mesh Topologies for Room Acoustic Simulation |
|---|---|
| Author | Guilherme Campos, David Howard |
| Journal | IEEE Transactions on Speech and Audio Processing |
| Volume | 13 |
| Number | 5 |
| Pages | 1063-1072 |
| Month | September |
| Year | 2005 |
| DOI | 10.1109/TSA.2005.852015 |
| Group | |
| Group (before 2015) | Signal Processing Laboratory |
| Indexed by ISI | Yes |
Room acoustic simulation using digital waveguide modelling requires three-dimensional (3D) waveguide meshes in order to represent fully the acoustic properties of the space. This paper presents a systematic analysis of four mesh topologies suggested in the literature: rectilinear, tetrahedral, cubic close-packed and octahedral. These mesh structures are compared from the standpoint of computational efficiency, bearing in mind specific issues that are important for room acoustic simulation. Each mesh topology offers a different compromise between spatial resolution, bandwidth, dispersion characteristics (including suitability for the application of dispersion-compensation techniques), computation time, memory requirements and implementation complexity.