Microphone array processing techniques have generated a tremendous interest in both theoretical and applied areas, especially, over the past decade. So long as an array performs a type of spatial filtering, the dimension of array will determine the acceptable frequency-range of the incoming waves. Consequently, it is well known that, miniature microphone arrays are not appropriate for audio applications. In this paper, we introduce a novel technique to utilize miniature microphone arrays for detecting audio signals. Besides, the problem of low sensitivity of such arrays in low frequency beamforming, due to dealing with wideband audio signals, is resolved. We start our discussion with a Delayand-Sum beamformer, and extend it to the GSC-based beamformer, as an example of popular beamformers. Constant directivity is an important result of the proposed approach.
Makki,S. and Manzuri-Shalmani,M. (2006). Subband Beamforming of Miniature Microphone Arrays for Audio Applications*. (e215967). The CSI Journal on Computer Science and Engineering, 3(2), e215967
MLA
Makki,S. , and Manzuri-Shalmani,M. . "Subband Beamforming of Miniature Microphone Arrays for Audio Applications*" .e215967 , The CSI Journal on Computer Science and Engineering, 3, 2, 2006, e215967.
HARVARD
Makki S., Manzuri-Shalmani M. (2006). 'Subband Beamforming of Miniature Microphone Arrays for Audio Applications*', The CSI Journal on Computer Science and Engineering, 3(2), e215967.
CHICAGO
S. Makki and M. Manzuri-Shalmani, "Subband Beamforming of Miniature Microphone Arrays for Audio Applications*," The CSI Journal on Computer Science and Engineering, 3 2 (2006): e215967,
VANCOUVER
Makki S., Manzuri-Shalmani M. Subband Beamforming of Miniature Microphone Arrays for Audio Applications*. CSIonJCSE, 2006; 3(2): e215967.
The CSI Journal on Computer Science and Engineering