Two-Dimensional FIR Filter Design on Wideband Speech Enhancement in Microphone Array

Abstract:

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Due to complexity of sound environment, the performance of speech enhancement is degraded greatly based on traditional beam-forming when directivity of arrival of sound and number of sound are not been estimated precisely. In this paper, according to characteristics of handle-communicated equipment, a method on suppression of environmental noise and disturbance is provided. Beam-forming on speech wideband in desired angle is realized by designing a two-dimensional FIR filter which has fan structure in pass-band and wedge-shaped structure in transition-band. The filter can suppress noise and disturbance out of main-lobe desired. The simulations demonstrated that the filter designed is effective.

Info:

Periodical:

Edited by:

Yuanzhi Wang

Pages:

260-266

DOI:

10.4028/www.scientific.net/AMM.39.260

Citation:

X. F. Su and X. H. Zhang, "Two-Dimensional FIR Filter Design on Wideband Speech Enhancement in Microphone Array", Applied Mechanics and Materials, Vol. 39, pp. 260-266, 2011

Online since:

November 2010

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Price:

$35.00

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