Results 31 to 40 of about 19,802 (239)

SoundCompass: a distributed MEMS microphone array-based sensor for sound source localization [PDF]

open access: yes, 2014
Sound source localization is a well-researched subject with applications ranging from localizing sniper fire in urban battlefields to cataloging wildlife in rural areas.
da Silva Gomes, Bruno   +5 more
core   +3 more sources

Mallard Detection Using Microphone Arrays Combined with Delay-and-Sum Beamforming for Smart and Remote Rice–Duck Farming

open access: yesApplied Sciences, 2021
This paper presents an estimation method for a sound source of pre-recorded mallard calls from acoustic information using two microphone arrays combined with delay-and-sum beamforming. Rice farming using mallards saves labor because mallards work instead
Hirokazu Madokoro   +6 more
doaj   +1 more source

Least squares DOA estimation with an informed phase unwrapping and full bandwidth robustness [PDF]

open access: yes, 2020
The weighted least-squares (WLS) direction-of-arrival estimator that minimizes an error based on interchannel phase differences is both computationally simple and flexible.
Bohlender, Alexander   +3 more
core   +1 more source

One-Dimensional MUSIC-Type Algorithm for Spherical Microphone Arrays

open access: yesIEEE Access, 2020
Spherical microphone arrays have been widely used in direction-of-arrival (DOA) estimation in recent years. The conventional multiple signal classification method formulated in spherical harmonic domain (SHMUSIC) is computationally expensive ...
Qinghua Huang, Tingwei Chen
doaj   +1 more source

Localization of Sound Sources: A Systematic Review

open access: yesEnergies, 2021
Sound localization is a vast field of research and advancement which is used in many useful applications to facilitate communication, radars, medical aid, and speech enhancement to but name a few.
Muhammad Usman Liaquat   +5 more
doaj   +1 more source

Numerical and Experimental Study on Mode Identification Error Characteristics of Fan Noise

open access: yesFrontiers in Energy Research, 2022
The influence of different test methods on the accuracy of mode identification is not clear, and it is necessary to explore the error transfer characteristics in mode decomposition of fan noise. Numerical and experimental research studies are carried out
Kunbo Xu   +3 more
doaj   +1 more source

The Fusion of Distributed Microphone Arrays for Sound Localization

open access: yesEURASIP Journal on Advances in Signal Processing, 2003
This paper presents a general method for the integration of distributed microphone arrays for localization of a sound source. The recently proposed sound localization technique, known as SRP-PHAT, is shown to be a special case of the more general ...
Aarabi Parham
doaj   +1 more source

Towards End-to-End Acoustic Localization using Deep Learning: from Audio Signal to Source Position Coordinates [PDF]

open access: yes, 2018
This paper presents a novel approach for indoor acoustic source localization using microphone arrays and based on a Convolutional Neural Network (CNN). The proposed solution is, to the best of our knowledge, the first published work in which the CNN is ...
Macias-Guarasa, Javier   +2 more
core   +2 more sources

Spherical microphone array acoustic rake receivers [PDF]

open access: yes, 2015
Several signal independent acoustic rake receivers are proposed for speech dereverberation using spherical microphone arrays. The proposed rake designs take advantage of multipaths, by separately capturing and combining early reflections with the direct ...
Javed, HA, Moore, AH, Naylor, PA
core   +1 more source

Bioinspired Shape‐Memory Hook Fasteners With Programmable Interlocking and Silent Release

open access: yesAdvanced Engineering Materials, EarlyView.
Bioinspired hook fasteners made from epoxy shape‐memory polymers are shown to switch between strong, secure attachment and gentle, silent release when heated. By combining programmable geometry and material response, these adaptive fasteners outperform commercial systems in strength and noise control, enabling new solutions for robotics, medical ...
Maria I. Vallejo Ciro   +3 more
wiley   +1 more source

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