Results 11 to 20 of about 1,518,880 (291)

An Extension of the Virtual Rotating Array Method Using Arbitrary Microphone Configurations for the Localization of Rotating Sound Sources

open access: yesAcoustics, 2020
The characterization of rotating aeroacoustic sources using microphone array methods has been proven to be a useful tool. One technique to identify rotating sources is the virtual rotating array method.
Simon Jekosch, Ennes Sarradj
doaj   +2 more sources

High channel count microphone array accurately and precisely localizes ultrasonic signals from freely-moving mice. [PDF]

open access: yesJ Neurosci Methods, 2018
Background: An integral component in the assessment of vocal behavior in groups of freely interacting animals is the ability to determine which animal is producing each vocal signal.
Warren MR, Sangiamo DT, Neunuebel JP.
europepmc   +2 more sources

Gunshot Airborne Surveillance with Rotary Wing UAV-Embedded Microphone Array [PDF]

open access: yesSensors, 2019
Unmanned aerial vehicles (UAV) are growing in popularity, and recent technological advances are fostering the development of new applications for these devices.
Felipe Gonçalves Serrenho   +3 more
doaj   +2 more sources

MEMS Microphone Array Sensor for Air-Coupled Impact-Echo [PDF]

open access: yesSensors, 2015
Impact-Echo (IE) is a nondestructive testing technique for plate like concrete structures. We propose a new sensor concept for air-coupled IE measurements.
Robin Groschup, Christian U. Grosse
doaj   +2 more sources

Compressive sensing with a spherical microphone array [PDF]

open access: yesJournal of the Acoustical Society of America, 2016
A wave expansion method is proposed in this work, based on measurements with a spherical microphone array, and formulated in the framework provided by Compressive Sensing. The method promotes sparse solutions via ℓ1-norm minimization, so that the measured data are represented by few basis functions. This results in fine spatial resolution and accuracy.
Efrén Fernandez-Grande   +1 more
exaly   +3 more sources

A General Approach for Operational Bandwidth Extension in Spherical Microphone Array [PDF]

open access: yesJournal of Electrical and Computer Engineering Innovations, 2022
Background and Objectives: Operating frequency range of a microphone array is limited by the array configuration. Spatial aliasing occurs at frequencies considered to be out of the microphone array operating range that leads to side-lobes in the array ...
M. Kalantari   +2 more
doaj   +1 more source

Microphone Array Generalization for Multichannel Narrowband Deep Speech Enhancement [PDF]

open access: yesInterspeech, 2021
This paper addresses the problem of microphone array generalization for deep-learning-based end-to-end multichannel speech enhancement. We aim to train a unique deep neural network (DNN) potentially performing well on unseen microphone arrays.
Siyuan Zhang, Xiaofei Li
semanticscholar   +1 more source

Performance Analysis of MVDR Beamformer Applied on an End-fire Microphone Array Composed of Unidirectional Microphones

open access: yesArchives of Acoustics, 2021
Microphone array with minimum variance (MVDR) beamformer is a commonly used method for ambient noise suppression. Unfortunately, the performance of the MVDR beamformer is poor in a real reverberant room due to multipath wave propagation. To overcome this
Zoran ŠARIĆ   +4 more
doaj   +1 more source

Sound Localization Based on Acoustic Source Using Multiple Microphone Array in an Indoor Environment

open access: yesElectronics, 2022
Sound signals have been widely applied in various fields. One of the popular applications is sound localization, where the location and direction of a sound source are determined by analyzing the sound signal.
Ming‐An Chung   +2 more
semanticscholar   +1 more source

Deep learning microphone array speech enhancement for multiple speaker separation

open access: yesDianzi Jishu Yingyong, 2022
With the increase of human-computer voice interaction scenes in recent years, using microphone array speech enhancement to improve speech quality has become one of the research hotspots.
Zhang Jiayang   +3 more
doaj   +1 more source

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