Results 41 to 50 of about 1,472,223 (308)

On the effect of SNR and superdirective beamforming in speaker diarisation in meetings [PDF]

open access: yes, 2012
This paper examines the effect of sensor performance on speaker diarisation in meetings and investigates the use of more advanced beamforming techniques, beyond the typically employed delay-sum beamformer, for mitigating the effects of poorer sensor ...
Mike Lincoln   +5 more
core   +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

Effect of Vertical Microphone Layer Spacing for a 3D Microphone Array

open access: yes, 2014
Subjective listening tests were conducted to investigate how the spacing between main (lower) and height (upper) microphone layers in a 3D main microphone array affects perceived spatial impression and overall preference. Four different layer spacings of
Lee, Hyunkook, Gribben, Christopher
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

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

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

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

From Shear to Sound: Mechanics–Acoustics Mapping of TPMS Lattices

open access: yesAdvanced Engineering Materials, EarlyView.
Triply periodic minimal surface (TPMS) lattices are mapped across mechanical and acoustic performance, revealing that descriptors validated in compression fail under shear. First‐time comparison with trusses included. A transition from porous to resonance‐driven absorption emerges at 25% density.
Lucía Doyle   +3 more
wiley   +1 more source

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