Results 1 to 10 of about 10,791 (210)

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

open access: goldSensors, 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   +4 more sources

Optimal Microphone Array Placement Design Using the Bayesian Optimization Method [PDF]

open access: yesSensors
In addition to the filter coefficients, the location of the microphone array is a crucial factor in improving the overall performance of a beamformer. The optimal microphone array placement can considerably enhance speech quality.
Yuhan Zhang   +2 more
doaj   +2 more sources

Arbitrary Microphone Array Optimization Method Based on TDOA for Specific Localization Scenarios [PDF]

open access: yesSensors, 2019
Various microphone array geometries (e.g., linear, circular, square, cubic, spherical, etc.) have been used to improve the positioning accuracy of sound source localization.
Haitao Liu, Thia Kirubarajan, Qian Xiao
doaj   +2 more sources

Design of UAV-Embedded Microphone Array System for Sound Source Localization in Outdoor Environments [PDF]

open access: yesSensors, 2017
In search and rescue activities, unmanned aerial vehicles (UAV) should exploit sound information to compensate for poor visual information. This paper describes the design and implementation of a UAV-embedded microphone array system for sound source ...
Kotaro Hoshiba   +8 more
doaj   +2 more sources

Microphone Array Speech Processing [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
1Department of Electrical and Computer Engineering, Curtin University of Technology, Perth, WA 6845, Australia 2College of Engineering & Computer Science, The Australian National University, Canberra, ACT 0200, Australia 3 Institute of Physics, Signal Processing Group, University of Oldenburg, 26111 Oldenburg, Germany 4 School of Engineering, Bar-Ilan ...
Sven Nordholm   +5 more
doaj   +4 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

MEMS piezoelectric resonant microphone array for lung sound classification. [PDF]

open access: hybridJ Micromech Microeng, 2023
Liu H   +7 more
europepmc   +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

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

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