Beamforming with a circular array of microphones mounted on a rigid sphere (L)
Publication: Research - peer-review › Journal article – Annual report year: 2011
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Beamforming with a circular array of microphones mounted on a rigid sphere (L). / Tiana Roig, Elisabet; Jacobsen, Finn; Fernandez Grande, Efren.
In: Journal of the Acoustical Society of America, Vol. 130, No. 3, 2011, p. 1095.Publication: Research - peer-review › Journal article – Annual report year: 2011
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TY - JOUR
T1 - Beamforming with a circular array of microphones mounted on a rigid sphere (L)
A1 - Tiana Roig,Elisabet
A1 - Jacobsen,Finn
A1 - Fernandez Grande,Efren
AU - Tiana Roig,Elisabet
AU - Jacobsen,Finn
AU - Fernandez Grande,Efren
PB - American Institute of Physics
PY - 2011
Y1 - 2011
N2 - Beamforming with uniform circular microphone arrays can be used for localizing sound sources over 360. Typically, the array microphones are suspended in free space or they are mounted on a solid cylinder. However, the cylinder is often considered to be infinitely long because the scattering problem has no exact solution for a finite cylinder. Alternatively one can use a solid sphere. This investigation compares the performance of a circular array mounded on a rigid sphere with that of such an array in free space and mounted on an infinite cylinder, using computer simulations. The examined techniques are delay-and-sum and circular harmonics beamforming, and the results are validated experimentally.
AB - Beamforming with uniform circular microphone arrays can be used for localizing sound sources over 360. Typically, the array microphones are suspended in free space or they are mounted on a solid cylinder. However, the cylinder is often considered to be infinitely long because the scattering problem has no exact solution for a finite cylinder. Alternatively one can use a solid sphere. This investigation compares the performance of a circular array mounded on a rigid sphere with that of such an array in free space and mounted on an infinite cylinder, using computer simulations. The examined techniques are delay-and-sum and circular harmonics beamforming, and the results are validated experimentally.
KW - Shapes (structures)
KW - Microphone arrays
KW - Array signal processing
KW - Acoustic signal processing
KW - Acoustic radiators
U2 - 10.1121/1.3621294
DO - 10.1121/1.3621294
JO - Journal of the Acoustical Society of America
JF - Journal of the Acoustical Society of America
SN - 00014966
IS - 3
VL - 130
SP - 1095
ER -