| Paper: | AE-L2.1 | ||
| Session: | Spatial and Multichannel Audio | ||
| Time: | Tuesday, May 18, 15:30 - 15:50 | ||
| Presentation: | Lecture | ||
| Topic: | Audio and Electroacoustics: Spatial and Multichannel Audio | ||
| Title: | BOUNDARY CONDITIONS IN A MULTI-DIMENSIONAL DIGITAL WAVEGUIDE MESH | ||
| Authors: | Antti Kelloniemi; Helsinki University of Technology | ||
| Damian T. Murphy; University of York | |||
| Lauri Savioja; Helsinki University of Technology | |||
| Vesa Välimäki; Helsinki University of Technology | |||
| Abstract: | The digital waveguide mesh is a modeling technique suitable for simulation of wave propagation in an acoustic system. In this work artificial boundary conditions are constructed for the digital waveguide mesh. Absorbing boundary conditions are evaluated and a new method for adjusting the reflection coefficient at values 0 < r < 1 is introduced. The frequency dependent error level of this method was minimized with use of a second-order FIR filter. | ||
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