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Abstract
Viscothermal eﬀects in air lead to a damping of highfrequencies over space. Such eﬀects cannot be neglected in largescale room acoustics simulations for the full audible bandwidth. In this study, fullbandwidth room acoustics is modelled using a variant of the threedimensional wave equation including viscothermal losses in air following from a simpliﬁcation of the NavierStokes equations suitable for room acoustics applications. The model equation is numerically solved using timedomain ﬁnite diﬀerence methods. A threestep parameterised ﬁnite diﬀerence scheme is proposed to model T60 decay times as a function of frequency more accurately than twostep 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 

Title of host publication  Proceedings of Forum Acusticum 
Number of pages  9 
Publication status  Published  7 Sep 2014 
Event  7th Forum Acusticum 2014 Krakow  Krakow, Poland Duration: 7 Sep 2014 → 12 Sep 2014 
Conference
Conference  7th Forum Acusticum 2014 Krakow 

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 3D Viscothermal Wave Equation on a GPU'. Together they form a unique fingerprint.Projects
 1 Finished

NESS  Listening to the future: Nextgeneration Sound Synthesis through Simulation
1/01/12 → 31/12/16
Project: Research