Results 21 to 30 of about 2,510 (233)

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

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

CABE: A Cloud-Based Acoustic Beamforming Emulator for FPGA-Based Sound Source Localization

open access: yesSensors, 2019
Microphone arrays are gaining in popularity thanks to the availability of low-cost microphones. Applications including sonar, binaural hearing aid devices, acoustic indoor localization techniques and speech recognition are proposed by several research ...
Laurent Segers   +6 more
doaj   +1 more source

Design of Planar Differential Microphone Array Beampatterns with Controllable Mainlobe Beamwidth and Sidelobe Level

open access: yesSensors, 2023
The differential microphone array, or differential beamformer, has attracted much attention for its frequency-invariant beampattern, high directivity factor and compact size.
Xianghui Wang   +4 more
doaj   +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

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

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

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

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