TY - GEN
T1 - Auralization of sonic crystals through simulation of acoustic band gaps in two-dimensional periodic scattering arrays
AU - Hoare, Sorrel
AU - Murphy, Damian
PY - 2011
Y1 - 2011
N2 - Sonic crystals have been investigated in recent years both as a potential form of noise barrier, and as a form of sonic art aimed at enhancing perception of the surrounding acoustic environment. The broader aim of this research is concerned with the auralization of these structures, which has, as yet, rarely been attempted. In this paper, prediction of the acoustic wave propagation through 2-dimensional arrays of solid, cylindrical scatterers embedded in air is performed using the Impulse Response method in 2-D Finite Difference Time Domain (FDTD) simulations. The center frequencies of the band gaps show good correspondence with their predicted locations - these being based on simple theoretical considerations that relate the frequency of the transmission gaps to the spacing between the arrays. The measured Impulse Responses are subsequently convolved with anechoic material in order to render some preliminary auralizations of the sonic crystal structures. The success of the technique is considered for future work.
AB - Sonic crystals have been investigated in recent years both as a potential form of noise barrier, and as a form of sonic art aimed at enhancing perception of the surrounding acoustic environment. The broader aim of this research is concerned with the auralization of these structures, which has, as yet, rarely been attempted. In this paper, prediction of the acoustic wave propagation through 2-dimensional arrays of solid, cylindrical scatterers embedded in air is performed using the Impulse Response method in 2-D Finite Difference Time Domain (FDTD) simulations. The center frequencies of the band gaps show good correspondence with their predicted locations - these being based on simple theoretical considerations that relate the frequency of the transmission gaps to the spacing between the arrays. The measured Impulse Responses are subsequently convolved with anechoic material in order to render some preliminary auralizations of the sonic crystal structures. The success of the technique is considered for future work.
KW - auralization
KW - Sonic crystal
KW - soundscape
UR - http://www.scopus.com/inward/record.url?scp=83455262402&partnerID=8YFLogxK
U2 - 10.1109/ASPAA.2011.6082316
DO - 10.1109/ASPAA.2011.6082316
M3 - Conference contribution
AN - SCOPUS:83455262402
SN - 9781457706912
T3 - IEEE Workshop on Applications of Signal Processing to Audio and Acoustics
SP - 53
EP - 56
BT - 2011 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2011
T2 - 2011 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2011
Y2 - 16 October 2011 through 19 October 2011
ER -