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Abstract / Description of output
Viscothermal effects in air lead to a damping of high-frequencies over space. Such effects cannot be neglected in large-scale room acoustics simulations for the full audible bandwidth. In this study, full-bandwidth room acoustics is modelled using a variant of the three-dimensional wave equation including viscothermal losses in air following from a simplification of the Navier-Stokes equations suitable for room acoustics applications. The model equation is numerically solved using time-domain finite difference methods. A three-step parameterised finite difference scheme is proposed to model T60 decay times as a function of frequency more accurately than two-step schemes. Timing results
from parallelised implementations on a graphics processing unit (GPU) card are presented.
from parallelised implementations on a graphics processing unit (GPU) card are presented.
Original language | English |
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Title of host publication | Proceedings of Forum Acusticum |
Number of pages | 9 |
Publication status | Published - 7 Sept 2014 |
Event | 7th Forum Acusticum 2014 Krakow - Krakow, Poland Duration: 7 Sept 2014 → 12 Sept 2014 |
Conference
Conference | 7th Forum Acusticum 2014 Krakow |
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Country/Territory | Poland |
City | Krakow |
Period | 7/09/14 → 12/09/14 |
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Dive into the research topics of 'Improved Finite Difference Schemes for a 3-D Viscothermal Wave Equation on a GPU'. 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