Finite volume time domain room acoustics simulation under general impedance boundary conditions

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Finite volume time domain room acoustics simulation under general impedance boundary conditions. / Bilbao, Stefan; Hamilton, Brian; Botts, Jonathan; Savioja, Lauri.

julkaisussa: IEEE/ACM Transactions on Audio, Speech, and Language Processing, Vuosikerta 24, Nro 1, 7327143, 01.2016, s. 161-173.

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

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Bibtex - Lataa

@article{62c9052135824e3799a63edac1a2b918,
title = "Finite volume time domain room acoustics simulation under general impedance boundary conditions",
abstract = "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 paper, 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.",
keywords = "Finite difference time domain method, finite volume methods, room acoustics, WAVE-GUIDE MESH, FDTD",
author = "Stefan Bilbao and Brian Hamilton and Jonathan Botts and Lauri Savioja",
year = "2016",
month = "1",
doi = "10.1109/TASLP.2015.2500018",
language = "English",
volume = "24",
pages = "161--173",
journal = "IEEE/ACM Transactions on Audio, Speech, and Language Processing",
issn = "2329-9290",
publisher = "IEEE Advancing Technology for Humanity",
number = "1",

}

RIS - Lataa

TY - JOUR

T1 - Finite volume time domain room acoustics simulation under general impedance boundary conditions

AU - Bilbao, Stefan

AU - Hamilton, Brian

AU - Botts, Jonathan

AU - Savioja, Lauri

PY - 2016/1

Y1 - 2016/1

N2 - 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 paper, 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.

AB - 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 paper, 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.

KW - Finite difference time domain method

KW - finite volume methods

KW - room acoustics

KW - WAVE-GUIDE MESH

KW - FDTD

UR - http://www.scopus.com/inward/record.url?scp=84957069223&partnerID=8YFLogxK

U2 - 10.1109/TASLP.2015.2500018

DO - 10.1109/TASLP.2015.2500018

M3 - Article

VL - 24

SP - 161

EP - 173

JO - IEEE/ACM Transactions on Audio, Speech, and Language Processing

JF - IEEE/ACM Transactions on Audio, Speech, and Language Processing

SN - 2329-9290

IS - 1

M1 - 7327143

ER -

ID: 1501057