Development and validation of a combined phased acoustical radiosity and image source model for predicting sound fields in rooms

2015 ◽  
Vol 138 (3) ◽  
pp. 1457-1468 ◽  
Author(s):  
Gerd Marbjerg ◽  
Jonas Brunskog ◽  
Cheol-Ho Jeong ◽  
Erling Nilsson
Keyword(s):  
Source Model ◽  
Image Source ◽  
Sound Fields ◽  
Development And Validation

scholarly journals Coherent Image Source Modeling of Sound Fields in Long Spaces with a Sound-Absorbing Ceiling

2021 ◽  
Vol 11 (15) ◽  
pp. 6743
Author(s):  
Hequn Min ◽  
Ke Xu
Keyword(s):  
Sound Field ◽  
Wave Theory ◽  
Source Model ◽  
Scale Model ◽  
Source Modeling ◽  
Image Source ◽  
Sound Fields ◽  
Absorbing Boundaries ◽  
Proposed Model ◽  
Coherent Image

Sound-absorbing boundaries can attenuate noise propagation in practical long spaces, but fast and accurate sound field modeling in this situation is still difficult. This paper presents a coherent image source model for simple yet accurate prediction of the sound field in long enclosures with a sound absorbing ceiling. In the proposed model, the reflections on the absorbent boundary are separated from those on reflective ones during evaluating reflection coefficients. The model is compared with the classic wave theory, an existing coherent image source model and a scale-model experiment. The results show that the proposed model provides remarkable accuracy advantage over the existing models yet is fast for sound prediction in long spaces.

scholarly journals Room acoustic prediction and auralization based on an extended image source model

1992 ◽  
Vol 92 (4) ◽  
pp. 2346-2346 ◽  
Author(s):  
Bengt‐Inge Dalenbäck ◽  
Peter Svensson ◽  
Mendel Kleiner
Keyword(s):  
Source Model ◽  
Image Source

Image source model for small room acoustics

2015 ◽  
Vol 137 (4) ◽  
pp. 2357-2357
Author(s):  
Ambika Bhatta ◽  
Charles Thompson ◽  
Kavitha Chandra
Keyword(s):  
Source Model ◽  
Room Acoustics ◽  
Image Source ◽  
Small Room

SU-FF-T-149: Development and Validation of An MCNPX Monte Carlo IMRT Source Model with Optimized Radiotherapy Interface and Comparative Analysis Software

2007 ◽  
Vol 34 (6Part9) ◽  
pp. 2435-2435
Author(s):  
M Speiser ◽  
J DeMarco ◽  
N Agazaryan ◽  
I Chetty ◽  
T Solberg ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Comparative Analysis ◽  
Source Model ◽  
Analysis Software ◽  
Development And Validation

scholarly journals Numerical and Experimental Studies on Inclined Incidence Parametric Sound Propagation

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Haisen Li ◽  
Jingxin Ma ◽  
Jianjun Zhu ◽  
Baowei Chen
Keyword(s):  
Sound Propagation ◽  
Experimental Studies ◽  
Sound Field ◽  
Source Model ◽  
Calculation Model ◽  
Theoretical Research ◽  
Field Calculation ◽  
Sound Beam ◽  
Sound Fields ◽  
Kzk Equation

The Khokhlov–Zabolotskaya–Kuznetsov (KZK) equation has been widely used in the simulation and calculation of nonlinear sound fields. However, the accuracy of KZK equation reduced due to the deflection of the direction of the sound beam when the sound beam is inclined incidence. In this paper, an equivalent sound source model is proposed to make the calculation direction of KZK calculation model consistent with the sound propagation direction after acoustic refraction, so as to improve the accuracy of sound field calculation under the inclined incident conditions. The theoretical research and pool experiment verify the feasibility and effectiveness of the proposed method.

Sign in / Sign up

Export Citation Format

Share Document