DocumentCode
3428347
Title
The nearfield spherical microphone array
Author
Fisher, Etan ; Rafaely, Boaz
Author_Institution
Dept. of Electr. & Comput. Eng., Ben-Gurion Univ. of the Negev, Beer-Sheva
fYear
2008
fDate
March 31 2008-April 4 2008
Firstpage
5272
Lastpage
5275
Abstract
A nearfield spherical microphone array is presented. The nearfield criterion of the spherical array is defined in terms of array order, frequency and location. It is shown that given a source in the nearfield, significant attenuation of farfield interference is achieved. Also, nearfield sources may be attenuated relative to farfield sources. Dereverberation of a nearfield source in a reverberant enclosure is demonstrated using the nearfield microphone array.
Keywords
array signal processing; microphone arrays; reverberation; speech processing; farfield interference; nearfield spherical microphone arrays; reverberant enclosure; speech processing; spherical harmonics; Array signal processing; Attenuation; Frequency; Function approximation; Interference; Microphone arrays; Performance analysis; Phase estimation; Phased arrays; Power harmonic filters; Beamforming; Dereverberation; Microphone array; Spherical harmonics;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech and Signal Processing, 2008. ICASSP 2008. IEEE International Conference on
Conference_Location
Las Vegas, NV
ISSN
1520-6149
Print_ISBN
978-1-4244-1483-3
Electronic_ISBN
1520-6149
Type
conf
DOI
10.1109/ICASSP.2008.4518849
Filename
4518849
Link To Document