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
fDate :
March 31 2008-April 4 2008
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;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2008. ICASSP 2008. IEEE International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-1483-3
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2008.4518849
