Efficient implementations of first-order steerable differential microphone arrays with arbitrary planar geometry

F Borra, A Bernardini, F Antonacci… - IEEE/ACM Transactions …, 2020 - ieeexplore.ieee.org
We present a spatial filtering approach to first-order steerable Differential Microphone Arrays
(DMAs) with arbitrary planar geometry. In particular, the design of the spatial filter is based …

Uniform linear arrays of first-order steerable differential microphones

F Borra, A Bernardini, F Antonacci… - IEEE/ACM Transactions …, 2019 - ieeexplore.ieee.org
We propose a spatial filtering method for linear arrays of First-Order Steerable Differential
Microphones (FOSDMs), which operates in two layers. In the former, signals acquired by …

Two-stage beamforming with arbitrary planar arrays of differential microphone array units

D Albertini, A Bernardini, F Borra… - … on Audio, Speech …, 2022 - ieeexplore.ieee.org
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 …

A beamforming-based joint estimation method for gas pipeline leak localization

X Zheng, Q Wang, S Xue, C Zheng - Measurement, 2021 - Elsevier
This paper proposes a beamforming-based joint estimation method to improve the accuracy
and robustness of the localization method that measures acoustic signals caused by gas …

Efficient continuous beam steering for planar arrays of differential microphones

A Bernardini, M D'Aria, R Sannino… - IEEE Signal Processing …, 2017 - ieeexplore.ieee.org
Performing continuous beam steering, from planar arrays of high-order differential
microphones, is not trivial. The main problem is that shape-preserving beams can be …

Wave digital implementation of robust first-order differential microphone arrays

A Bernardini, F Antonacci, A Sarti - IEEE Signal Processing …, 2017 - ieeexplore.ieee.org
In this letter, a novel time-domain implementation of robust first-order differential microphone
arrays (DMAs), based on wave digital filters, is presented. The proposed beamforming …

On differential beamforming with nonuniform linear microphone arrays

J **, J Benesty, G Huang… - IEEE/ACM Transactions on …, 2022 - ieeexplore.ieee.org
While differential beamforming with uniform linear arrays (ULAs) has been widely studied,
there is little work so far regarding the design of differential beamformers with nonuniform …

Steerable differential beamformers with planar microphone arrays

G Huang, J Chen, J Benesty, I Cohen… - EURASIP Journal on Audio …, 2020 - Springer
Humanoid robots require to use microphone arrays to acquire speech signals from the
human communication partner while suppressing noise, reverberation, and interferences …

Frequency-domain design of asymmetric circular differential microphone arrays

Y Buchris, I Cohen, J Benesty - IEEE/ACM Transactions on …, 2018 - ieeexplore.ieee.org
Circular differential microphone arrays (CDMAs) facilitate compact superdirective
beamformers whose beampatterns are nearly frequency invariant. In contrast to linear …

On the design of time-domain differential microphone arrays

Y Buchris, I Cohen, J Benesty - Applied Acoustics, 2019 - Elsevier
Differential microphone arrays (DMAs) are characterized as compact superdirective
beamformers whose beampatterns are almost frequency invariant. In this work, we present a …