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Abstract / Description of output
In room acoustics simulation and virtualization applications, accurate wall termination is a perceptually crucial feature. It is particularly important in the setting of wave-based modeling of 3D spaces, using methods such as the finite difference time domain method or finite volume time domain method. In this article, general locally reactive impedance boundary conditions are incorporated into a 3D finite volume time domain formulation, which may be specialized to the various types of finite difference time domain method under fitted boundary termination. Energy methods are used to determine stability conditions for general room geometries, under a large family of nontrivial wall impedances, for finite volume methods over unstructured grids. Simulation results are presented, highlighting in particular the need for unstructured or fitted cells at the room boundary in the case of the accurate simulation of frequency-dependent room mode decay times.
Original language | English |
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Pages (from-to) | 161-173 |
Number of pages | 14 |
Journal | IEEE/ACM Transactions on Audio, Speech and Language Processing |
Volume | 24 |
Issue number | 1 |
Early online date | 15 Nov 2015 |
DOIs | |
Publication status | Published - 1 Jan 2016 |
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Dive into the research topics of 'Finite volume time domain room acoustics simulation under general impedance boundary conditions'. Together they form a unique fingerprint.Projects
- 1 Finished
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NESS - Listening to the future: Next-generation Sound Synthesis through Simulation
1/01/12 → 31/12/16
Project: Research
Profiles
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Stefan Bilbao
- Edinburgh College of Art - Personal Chair of Acoustics and Audio Signal Processing
- Acoustics and Audio Group
- Music
Person: Academic: Research Active