Results 31 to 40 of about 328,872 (254)

Spheroidal ambisonics: Spatial audio in spheroidal bases [PDF]

open access: yesJASA Express Letters, 2021
Ambisonics is an established framework to capture and reproduce spatial sound fields based on the spherical harmonics representation [Gerzon (1973). J. Audio Eng. Soc. 21(1), 2–10].
Shoken Kaneko, Ramani Duraiswami
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

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

An informal comparison between surround microphone techniques [PDF]

open access: yes
There is currently a lack of recorded test materials in five-channel surround format. Particularly lacking are recordings made simultaneously using different microphone arrays that would allow comparative switching between different recorded versions of ...
Lee, Hyunkook   +3 more
core   +4 more sources

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

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