Results 31 to 40 of about 1,472,223 (308)

An Introduction to Virtual Phased Arrays for Beamforming Applications

open access: yesArchives of Acoustics, 2014
Sound localization problems are usually tackled by the acquisition of data from phased microphone arrays and the application of acoustic holography or beamforming algorithms.
Daniel FERNÁNDEZ COMESAÑA   +3 more
doaj   +1 more source

SPEECH ACQUISITION IN NOISY ENVIRONMENTS USING DUAL MICROPHONE ARRAYS [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2018
Subject of Research.The paper deals with the practical aspects of distant speech acquisition in complex noisy environments using dual microphone arrays (MA2). The non-adaptive frequency-domain algorithms are described. The theory of MA2 is well developed
Stolbov M.B., The Quan Trong
doaj   +1 more source

Microphone Array Speech Processing [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
1Department of Electrical and Computer Engineering, Curtin University of Technology, Perth, WA 6845, Australia 2College of Engineering & Computer Science, The Australian National University, Canberra, ACT 0200, Australia 3 Institute of Physics, Signal Processing Group, University of Oldenburg, 26111 Oldenburg, Germany 4 School of Engineering, Bar-Ilan ...
Sven Nordholm   +5 more
openaire   +4 more sources

MISSION-ORIENTED SENSOR ARRAYS AND UAVs – A CASE STUDY ON ENVIRONMENTAL MONITORING [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
This paper presents a new concept of UAV mission design in geomatics, applied to the generation of thematic maps for a multitude of civilian and military applications.
N. M. Figueira   +3 more
doaj   +1 more source

Computation of spherical sector harmonics norm with application to blind source separation [PDF]

open access: yesJASA Express Letters, 2023
Spherical microphone arrays (SMAs) are widely being used for source localization and separation. However, it is uneconomical to build a full SMA when sources are present in restricted regions of environment.
Deepika Kumari, Lalan Kumar
doaj   +1 more source

Efficient Implementations of First-Order Steerable Differential Microphone Arrays With Arbitrary Planar Geometry

open access: yesIEEE/ACM Transactions on Audio Speech and Language Processing, 2020
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 on a recently proposed frequency-domain design methodology ...
Federico Borra   +3 more
semanticscholar   +1 more source

Enhanced direction estimation using microphone arrays for directional audio coding

open access: yes, 2022
S.45-48Modern home entertainment systems offer surround sound audio playback. This progress over known mono and stereo devices is also intended for high quality hands-free telephony to enhance intelligibility of speech in group conversation.
Schultz-Amling, R.   +5 more
core   +1 more source

FPGA-Based Architectures for Acoustic Beamforming with Microphone Arrays: Trends, Challenges and Research Opportunities

open access: yesComputers, 2018
Over the past decades, many systems composed of arrays of microphones have been developed to satisfy the quality demanded by acoustic applications. Such microphone arrays are sound acquisition systems composed of multiple microphones used to sample the ...
Bruno da Silva   +2 more
doaj   +1 more source

Acoustic source localization using the open spherical microphone array in the low-frequency range [PDF]

open access: yesMATEC Web of Conferences, 2019
Recently, spherical microphone arrays (SMA) have become increasingly significant for source localization and identification in three dimension due to its spherical symmetry.
Yang Boquan, Shi Shengguo, Yang Desen
doaj   +1 more source

Capsule Calibration Approaches for Low-Cost Higher Order Ambisonic Microphone Arrays [PDF]

open access: yes, 2022
Low-cost electret microphone capsules, such as those accessible to the audio hobbyist or DIY audio electronics community are typically available ‘unmatched’.
Middlicott, C., Wiggins, B.
core  

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