Introduction

FDTD Methods for 3-D Room Acoustics Simulation With High-Order Accuracy in Space and Time

“…Although wave-based methods come at a substantial computational cost in comparison to geometric methods, audio-rate simulations are becoming realizable through the use of modern graphics processing units (GPU) devices [11]- [13]. Other wave-based methods include boundary element [14] and finite element [15] methods, although FDTD is often preferred due to its ease of implementation and parallelization. Hybridizations of wave and geometric methods have also been studied [16], [17].…”

Prediction of dipole sources and aeroacoustics field for tandem cylinder flow field based on DBEM/hybrid LES

“…The BEM is powerful for exterior problems in the free field, such as sound radiation and scattering problems. 21 Its basic equation is Helmholtz equation: …”

“…In order to solve the boundary integral equation numerically, a discretized equation is given by collocating the observation point p at each node on the boundary. Then equation (4) is discretized as follows: 21 …”

Auralization of numerical simulation results on outdoor sound propagation: Application of six-channel recording/binaural reproduction system for three-dimensional auralization

“…The instantaneous directivity factors (D i ) for six orthogonal directions (i ¼ 1 to 6) are calculated from the time series data of the sound incident angle (Step 2). In this study, the directivity factors are calculated as follows [2]:…”

“…The technique has progressed from simply listening to the calculated monaural impulse responses to spatial sound field simulation in the virtual field assumed in the calculation [1][2][3][4].…”