Differential constant-beamwidth beamforming with cube arrays

G Itzhak, I Cohen - Speech Communication, 2023 - Elsevier
In this paper, we present an azimuth and elevation constant-beamwidth (CB) differential
beamforming approach for cube arrays. We decompose a global cube beamformer into a …

Region-of-interest oriented constant-beamwidth beamforming with rectangular arrays

G Itzhak, I Cohen - 2023 IEEE Workshop on Applications of …, 2023 - ieeexplore.ieee.org
This paper presents a region-of-interest (ROI) oriented constant-beamwidth (CB)
beamforming approach with rectangular arrays. We decompose a global rectangular …

Neural optimization of geometry and fixed beamformer for linear microphone arrays

L Yan, W Huang, WB Kleijn… - ICASSP 2023-2023 …, 2023 - ieeexplore.ieee.org
Fixed beamforming based on uniform linear microphone arrays often suffers from non-
optimal performance for broadband signals. This paper addresses the issue by jointly …

Robust Beamforming for Multispeaker Audio Conferencing Under DOA Uncertainty

G Itzhak, I Cohen - IEEE/ACM Transactions on Audio, Speech …, 2024 - ieeexplore.ieee.org
This paper presents a robust microphone array beamforming approach specifically
designed for multispeaker audio conferencing, where the directions of arrival (DOAs) of the …

Data-Driven Optimization Strategy of Microphone Array Configurations in Vehicle Environments

L Liu, F Bi, J Lin, T Qi, X Li - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Microphone array (MA) speech enhancement is a crucial component of vehicle intelligence.
However, the complex acoustic environments and the spatial constraints of array layouts …

Kronecker-Product Beamforming with Sparse Concentric Circular Arrays

G Itzhak, I Cohen - IEEE Open Journal of Signal Processing, 2023 - ieeexplore.ieee.org
This article presents a Kronecker-product (KP) beamforming approach incorporating sparse
concentric circular arrays (SCCAs). The locations of the microphones on the SCCA are …

Array Geometry Optimization for Region-of-Interest Near-Field Beamforming

R Moisseev, G Itzhak, I Cohen - ICASSP 2024-2024 IEEE …, 2024 - ieeexplore.ieee.org
Microphone array geometry plays a crucial role in array signal processing and beamforming.
This paper presents an array geometry optimization approach for near-field beamforming …

Joint Optimization of Microphone Array Geometry and Region-of-Interest Beamforming with Sparse Circular Sector Arrays

G Itzhak, S Doclo, I Cohen - 2024 18th International Workshop …, 2024 - ieeexplore.ieee.org
This paper focuses on two key aspects: region-of-interest beamforming and optimal sparse
circular sector array design. The aim is to address the problem of the unknown direction of …

Neural Optimisation of Fixed Beamformers With Flexible Geometric Constraints

LF Yan, W Huang, TD Abhayapala… - … on Audio, Speech …, 2025 - ieeexplore.ieee.org
This paper presents a novel approach to optimising fixed broadband beamformers using
neural networks. The proposed neural network model for fixed beamformers allows for the …

Machine Learning Assisted Signal Enhancement

L Yan - 2024 - openaccess.wgtn.ac.nz
In an era of abundant signals, the ability to obtain desired signals while rejecting undesired
ones has become increasingly crucial. Often, the desired signals are mixed with interference …