An Energetic Wave Equation for Modelling Diffuse Sound Fields - Application to Corridors

被引：3
|
作者：
Dujourdy, Hugo [1 ,2 ,3 ]
Pialot, Baptiste [1 ,2 ]
Toulemonde, Thomas [3 ]
Polack, Jean-Dominique [1 ,2 ]
机构：
[1] UPMC Univ Paris 6, Sorbonne Univ, UMR 7190, Inst Jean le Rond dAlembert, F-75005 Paris, France
[2] CNRS, UMR 7190, Inst Jean le Rond dAlembert, F-75005 Paris, France
[3] Impedance SAS, 80 Domaine Montvoisin, F-91400 Gometz La Ville, France
来源：
ACTA ACUSTICA UNITED WITH ACUSTICA | 2017年 / 103卷 / 03期
关键词：
SCATTERING COEFFICIENTS; ACOUSTIC PREDICTION; ROOM-ACOUSTICS; DIRECTIVITY; TIME;
D O I：
10.3813/AAA.919077
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
By revisiting the relationships between energy density and sound intensity, this paper presents an energetic wave equation adapted for long room such as corridors. This linear, second-order, hyperbolic equation depends on few parameters such as mean free path, absorption and scattering coefficients. We solve it by a finite difference in time domain technique and compare the results with in situ measurements carried out with a SoundField microphone to find appropriate values of the model parameters by an adjustment procedure.
引用
收藏
页码：480 / 491
页数：12
相关论文
共 50 条
  • [1] An energetic wave equation for modelling diffuse sound fields-Application to open offices
    Dujourdy, Hugo
    Pialot, Baptiste
    Toulemonde, Thomas
    Polack, Jean-Dominique
    WAVE MOTION, 2019, 87 : 193 - 212
  • [2] DIFFUSE SOUND FIELDS - EIGENMODE AND FREE-WAVE MODELS
    WATERHOUSE, RV
    COOK, RK
    JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1976, 59 (03): : 576 - 581
  • [3] SOUND INTENSITY IN DIFFUSE SOUND FIELDS
    VANZYL, BG
    ANDERSON, F
    ERASMUS, PJ
    JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1985, 78 (02): : 587 - 589
  • [4] The diffuse sound field in energetic analysis
    Del Galdo, Giovanni
    Taseska, Maja
    Thiergart, Oliver
    Ahonen, Jukka
    Pulkki, Ville
    JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 2012, 131 (03): : 2141 - 2151
  • [5] A WAVE-EQUATION FOR SOUND FIELDS IN FLUIDS WITH DENSITY STRATIFICATION
    GODIN, OA
    DOKLADY AKADEMII NAUK SSSR, 1984, 276 (03): : 579 - 582
  • [6] MASKING BY SUBJECTIVELY DIFFUSE SOUND FIELDS
    BURGTORF, W
    WAGENER, B
    ACUSTICA, 1967, 19 (02): : 72 - &
  • [7] Numerical realization of diffuse sound pressure fields using prolate spheroidal wave functions
    Van Hoorickx, Cédric
    Reynders, Edwin P. B.
    Journal of the Acoustical Society of America, 2022, 151 (03): : 1710 - 1721
  • [8] Numerical realization of diffuse sound pressure fields using prolate spheroidal wave functions
    Van Hoorickx, Cedric
    Reynders, Edwin P. B.
    JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 2022, 151 (03): : 1710 - 1721
  • [9] TENTATIVE METHOD OF PRODUCING DIFFUSE SOUND FIELDS
    RAES, AC
    JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1969, 46 (4P1): : 831 - &
  • [10] A TENTATIVE METHOD OF PRODUCING DIFFUSE SOUND FIELDS
    RAES, AC
    JOURNAL OF SOUND AND VIBRATION, 1970, 11 (03) : 289 - &
12345