Monitoring the courtship flight trajectory of Latham's snipe (Gallinago hardwickii) using microphone arrays
Sign Up to like & getrecommendations! Published in 2023 at "Ecology and Evolution"
DOI: 10.1002/ece3.9938
Abstract: Abstract This study is the first to quantitatively measure the courtship display flights of Latham's snipe (Gallinago hardwickii), which is a “near threatened” species as of 2022 (IUCN red list of threatened species). By using… read more here.
Keywords: snipe gallinago; gallinago hardwickii; latham snipe; microphone arrays ... See more keywords
Filter-and-sum based high-resolution CLEAN-SC with spherical microphone arrays
Sign Up to like & getrecommendations! Published in 2021 at "Applied Acoustics"
DOI: 10.1016/j.apacoust.2021.108278
Abstract: Abstract High-resolution CLEAN-SC (HR-CLEAN-SC) with spherical microphone arrays is a promising technology for panoramic sound source identification. To further enhance the ability to resolve multiple closely spaced sources at low frequencies, filter-and-sum based HR-CLEAN-SC is… read more here.
Keywords: resolution clean; microphone arrays; high resolution; clean spherical ... See more keywords
Iterative positioning of microphone arrays for acoustic imaging
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2019.115116
Abstract: Abstract For the characterization of acoustic sources, a common approach is to retro-propagate the sound pressure measured with a microphone array, which is often performed through the resolution of an inverse problem. The ill-posed nature… read more here.
Keywords: iterative positioning; array; microphone arrays; positioning microphone ... See more keywords
Wave Digital Implementation of Robust First-Order Differential Microphone Arrays
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Signal Processing Letters"
DOI: 10.1109/lsp.2017.2787484
Abstract: 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 method is extremely efficient, as it requires at most two multipliers… read more here.
Keywords: differential microphone; implementation robust; first order; microphone arrays ... See more keywords
Beamforming With Small-Spacing Microphone Arrays Using Constrained/Generalized LASSO
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Signal Processing Letters"
DOI: 10.1109/lsp.2020.2971790
Abstract: In this letter, we develop an approach to the design of beamformers with small-spacing uniform linear microphone arrays by incorporating sparseness constraints for attenuating scattered interference incident from some pre-specified ranges of directions of arrival.… read more here.
Keywords: microphone arrays; beamforming small; lasso; small spacing ... See more keywords
Sparse Distortionless Modal Beamforming for Spherical Microphone Arrays
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Signal Processing Letters"
DOI: 10.1109/lsp.2022.3210838
Abstract: Phase-mode array processing which utilizes the spherical harmonics decomposition offers a useful framework for spherical microphone arrays. In the modal domain, one of the major applications of spherical arrays is acoustic beamforming. Usually, beamforming is… read more here.
Keywords: beamformer output; harmonics; spherical microphone; microphone arrays ... See more keywords
Design of Steerable Linear Differential Microphone Arrays With Omnidirectional and Bidirectional Sensors
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Signal Processing Letters"
DOI: 10.1109/lsp.2023.3267969
Abstract: This letter is dedicated to the design of fully steerable linear differential microphone arrays (LDMAs). We analyze the steerable ideal spatial responses and explain why conventional LDMAs consisting of only omnidirectional microphones have limited steering… read more here.
Keywords: steerable linear; microphone arrays; omnidirectional bidirectional; differential microphone ... See more keywords
A broadband impulsive signal detection filter for unknown acoustic sources in outdoor environments using non-coplanar microphone arrays
Sign Up to like & getrecommendations! Published in 2018 at "Journal of the Acoustical Society of America"
DOI: 10.1121/1.5068058
Abstract: This paper describes a method for non-coplanar microphone arrays that temporally isolates and cleans unknown broadband acoustic impulses for detection, classification, and scene analysis. Possible events are initially identified using a sliding statistical time window.… read more here.
Keywords: detection; microphone arrays; microphone; non coplanar ... See more keywords