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REALIZING DIRECTIONAL SOUND SOURCE IN FDTD METHOD BY ESTIMATING INITIAL VALUE

Abstract: 

Wave-based acoustic simulation methods are studied actively for predicting acoustical phenomena. Finite-difference timedomain (FDTD) method is one of the most popular methods owing to its straightforwardness of calculating an impulse response. In an FDTD simulation, an omnidirectional sound source is usually adopted, which is not realistic because the real sound sources often have specific directivities. However, there is very little research on imposing a directional sound source into FDTD methods. In this paper, a method of realizing a directional sound source in FDTD methods is proposed. It is formulated as an estimation problem of the initial value so that the estimated result corresponds to the desired directivity. The effectiveness of the proposed method is illustrated through some numerical experiments.

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Paper Details

Authors:
Daiki Takeuchi, Kohei Yatabe, Yasuhiro Oikawa
Submitted On:
17 April 2018 - 10:59am
Short Link:
Type:
Poster
Event:
Presenter's Name:
Daiki Takeuchi
Paper Code:
AASP-P6.2
Document Year:
2018
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Document Files

ICASSP2018Poster.pdf

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[1] Daiki Takeuchi, Kohei Yatabe, Yasuhiro Oikawa, "REALIZING DIRECTIONAL SOUND SOURCE IN FDTD METHOD BY ESTIMATING INITIAL VALUE", IEEE SigPort, 2018. [Online]. Available: http://sigport.org/2936. Accessed: Jul. 21, 2018.
@article{2936-18,
url = {http://sigport.org/2936},
author = {Daiki Takeuchi; Kohei Yatabe; Yasuhiro Oikawa },
publisher = {IEEE SigPort},
title = {REALIZING DIRECTIONAL SOUND SOURCE IN FDTD METHOD BY ESTIMATING INITIAL VALUE},
year = {2018} }
TY - EJOUR
T1 - REALIZING DIRECTIONAL SOUND SOURCE IN FDTD METHOD BY ESTIMATING INITIAL VALUE
AU - Daiki Takeuchi; Kohei Yatabe; Yasuhiro Oikawa
PY - 2018
PB - IEEE SigPort
UR - http://sigport.org/2936
ER -
Daiki Takeuchi, Kohei Yatabe, Yasuhiro Oikawa. (2018). REALIZING DIRECTIONAL SOUND SOURCE IN FDTD METHOD BY ESTIMATING INITIAL VALUE. IEEE SigPort. http://sigport.org/2936
Daiki Takeuchi, Kohei Yatabe, Yasuhiro Oikawa, 2018. REALIZING DIRECTIONAL SOUND SOURCE IN FDTD METHOD BY ESTIMATING INITIAL VALUE. Available at: http://sigport.org/2936.
Daiki Takeuchi, Kohei Yatabe, Yasuhiro Oikawa. (2018). "REALIZING DIRECTIONAL SOUND SOURCE IN FDTD METHOD BY ESTIMATING INITIAL VALUE." Web.
1. Daiki Takeuchi, Kohei Yatabe, Yasuhiro Oikawa. REALIZING DIRECTIONAL SOUND SOURCE IN FDTD METHOD BY ESTIMATING INITIAL VALUE [Internet]. IEEE SigPort; 2018. Available from : http://sigport.org/2936