Results 21 to 30 of about 1,472,223 (308)

Time Domain Spherical Harmonic Processing with Open Spherical Microphones Recording

open access: yesApplied Sciences, 2021
Spherical harmonic analysis has been a widely used approach for spatial audio processing in recent years. Among all applications that benefit from spatial processing, spatial Active Noise Control (ANC) remains unique with its requirement for open ...
Huiyuan Sun   +2 more
doaj   +1 more source

DNN-Based Mask Estimation for Distributed Speech Enhancement in Spatially Unconstrained Microphone Arrays [PDF]

open access: yesIEEE/ACM Transactions on Audio Speech and Language Processing, 2020
Deep neural network (DNN)-based speech enhancement algorithms in microphone arrays have now proven to be efficient solutions to speech understanding and speech recognition in noisy environments.
Nicolas Furnon   +3 more
semanticscholar   +1 more source

Generating virtual microphone signals using geometrical information gathered by distributed arrays

open access: yes, 2022
S.185-190Conventional recording techniques for spatial audio are limited to the fact that the spatial image obtained is always relative to the position in which the microphones have been physically placed.
Weller, T.   +3 more
core   +1 more source

Multichannel 3D Microphone Arrays: A Review

open access: yes, 2021
Along with the recent advance of multichannel 3D audio technologies, a number of new microphone techniques for 3D sound recording have been proposed over the years.
Hyunkook Lee
semanticscholar   +1 more source

3D Localization of a Sound Source Using Mobile Microphone Arrays Referenced by SLAM [PDF]

open access: yesIEEE/RJS International Conference on Intelligent RObots and Systems, 2020
A microphone array can provide a mobile robot with the capability of localizing, tracking and separating distant sound sources in 2D, i.e., estimating their relative elevation and azimuth.
Simon Michaud   +7 more
semanticscholar   +1 more source

Fine‐scale observations of spatio‐spectro‐temporal dynamics of bird vocalizations using robot audition techniques

open access: yesRemote Sensing in Ecology and Conservation, 2021
Ecoacoustics needs sophisticated acoustic monitoring tools to extract a wide level of features from an observed mixture of sounds. We have developed a portable acoustic monitoring system called ‘HARKBird’ which consists of a laptop PC and an inexpensive ...
Shinji Sumitani   +5 more
doaj   +1 more source

Neural Ambisonics Encoding For Compact Irregular Microphone Arrays [PDF]

open access: yesIEEE International Conference on Acoustics, Speech, and Signal Processing
Ambisonics encoding of microphone array signals can enable various spatial audio applications, such as virtual reality or telepresence, but it is typically designed for uniformly-spaced spherical microphone arrays.
Mikko Heikkinen   +2 more
semanticscholar   +1 more source

Radiation mode–based microphone array: Experimental verification [PDF]

open access: yesJASA Express Letters
The mouth of a speaker is generally close to the microphones of speech communication devices, such as headsets and phones, whereas noise sources are more distant from the microphones.
Yudai Utsuki, Tsutomu Kaizuka
doaj   +1 more source

NMF-weighted SRP for multi-speaker direction of arrival estimation: robustness to spatial aliasing while exploiting sparsity in the atom-time domain

open access: yesEURASIP Journal on Audio, Speech, and Music Processing, 2021
Localization of multiple speakers using microphone arrays remains a challenging problem, especially in the presence of noise and reverberation. State-of-the-art localization algorithms generally exploit the sparsity of speech in some representation for ...
Sushmita Thakallapalli   +2 more
doaj   +1 more source

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

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