Results 231 to 240 of about 1,472,223 (308)

Two-Stage Beamforming With Arbitrary Planar Arrays of Differential Microphone Array Units

IEEE/ACM Transactions on Audio Speech and Language Processing, 2023
Differential Microphone Arrays (DMAs) are of great interest in the literature on small-sized microphone arrays, due to their good directivity properties and nearly frequency-invariant spatial responses.
Davide Albertini, A. Bernardini, Federico Borra, F. Antonacci, A. Sarti   +4 more
semanticscholar   +1 more source

Design study on microphone arrays

2015 IEEE International Conference on Digital Signal Processing (DSP), 2015
This paper presents a design of microphone array system that is intended for conference room applications. Different microphone array configurations have been considered in this work to demonstrate the importance of array layout. The filter-and-sum broadband beamformer is designed by using weighted least square (WLS) optimization method.
L. Khalid, Sven E. Nordholm, Hai Huyen Dam   +2 more
openaire   +1 more source

A Simple Theory and New Method of Differential Beamforming With Uniform Linear Microphone Arrays

IEEE/ACM Transactions on Audio Speech and Language Processing, 2020
This article presents a theoretical study of differential beamforming with uniform linear arrays. By defining a forward spatial difference operator, any order of the spatial difference of the observed signals can be represented as a product of a ...
Gongping Huang, J. Benesty, I. Cohen, Jingdong Chen   +3 more
semanticscholar   +1 more source

Microphone arrays and speaker identification

IEEE Transactions on Speech and Audio Processing, 1994
Hands-free operation of speech processing equipment is sometimes desired so that the user is unencumbered by hand-held or body-worn microphones. This paper explores the use of array microphones to capture speech under adverse acoustic conditions, and provide input to a system for automatic speaker identification.
Qiguang Lin, Ea-Ee Jan, James L. Flanagan   +2 more
openaire   +1 more source

Design of Planar Differential Microphone Arrays With Fractional Orders

IEEE/ACM Transactions on Audio Speech and Language Processing, 2020
Differential microphone arrays (DMAs) often encounter white noise amplification, especially at low frequencies. If the array geometry and the number of microphones are fixed, one can improve the white noise amplification problem by reducing the DMA order.
Gongping Huang, Jingdong Chen, J. Benesty   +2 more
semanticscholar   +1 more source

Robust and steerable kronecker product differential beamforming With rectangular microphone arrays

IEEE International Conference on Acoustics, Speech, and Signal Processing, 2020
Differential microphone arrays (DMAs), a class of welldesigned small-size arrays combined with differential beamforming, are very useful for processing broadband acoustic, audio, and speech signals in a wide range of applications.
Gongping Huang, J. Benesty, Jingdong Chen, I. Cohen   +3 more
semanticscholar   +1 more source

On Spatial Aliasing in Microphone Arrays

IEEE Transactions on Signal Processing, 2009
Microphone arrays sample the sound field in both space and time with the major objective being the extraction of the signal propagating from a desired direction-of-arrival (DOA). In order to reconstruct a spatial sinusoid from a set of discrete samples, the spatial sampling must occur at a rate greater than a half of the wavelength of the sinusoid ...
Jacek Dmochowski, Jacob Benesty, Sofiène Affes   +2 more
openaire   +1 more source

Kronecker Product Beamforming with Multiple Differential Microphone Arrays

International Conference on Security and Management, 2020
Differential microphone arrays (DMAs) are very attractive because of their high directional gains and frequency-invariant beampatterns. However, it is generally required that the array aperture is small, such that the DMA can respond to acoustic pressure
Gongping Huang, I. Cohen, J. Benesty, Jingdong Chen   +3 more
semanticscholar   +1 more source

Comparison of microphone-array configurations for three- and four-microphone arrays

SPIE Proceedings, 1997
ABSTRACT This paper will address the benefits and drawbacks of different configurations of 3 and 4 microphone adaptive arrays. In particular, broadside and endfire configurations of equally spaced and logarithmically spaced arrays will becompared. The assessment will be done using arrays of simple electret microphones in actual acoustic environments ...
Michael W. Hoffman, X. F. Lu, C. Pinkelman, Z. Li   +3 more
openaire   +1 more source

Continuously steerable differential beamformers with null constraints for circular microphone arrays.

Journal of the Acoustical Society of America, 2020
Differential beamforming combined with microphone arrays can be used in a wide range of applications related to acoustic and speech signal acquisition and recovery.
Gongping Huang, I. Cohen, Jingdong Chen, J. Benesty   +3 more
semanticscholar   +1 more source