Results 21 to 30 of about 6,472 (224)

Analisis Pengaruh Penambahan Jumlah Array Microphone Terhadap Estimasi Direction Of Arrival (DOA) dengan Teknik Pemrosesan Sinyal Fast Fourier Transform Beamforming

open access: yesJurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2018
Abstrak–-Estimasi sudut datangnya gelombang atau Direction Of Arrival (DOA) pada array sensor adalah masalah yang penting dalam berbagai macam aplikasi deteksi sumber suara. Tujuan dari Estimasi adalah untuk mengoptimalkan gelombang yang diinginkan dan
Moh Fausi
doaj   +1 more source

Sound Source Localization Fusion Algorithm and Performance Analysis of a Three-Plane Five-Element Microphone Array

open access: yesApplied Sciences, 2019
To reduce the negative effect on sound source localization when the source is at an extreme angle and improve localization precision and stability, a theoretical model of a three-plane five-element microphone array is established, using time-delay values
Hongyan Xing, Xu Yang
doaj   +1 more source

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

Bio-acoustic tracking and localization using heterogeneous, scalable microphone arrays

open access: yesCommunications Biology, 2021
Verreycken and colleagues present a methods paper detailing construction of large, scalable microphone arrays for bio-acoustic monitoring of animal species.
Erik Verreycken   +5 more
doaj   +1 more source

Hybrid Amyloid–Boron Nitride Aerogels for Lightweight Sound Insulation

open access: yesAdvanced Materials, EarlyView.
Amyloid fibrils template the mild formation of boron nitride–rich hybrid aerogels with hierarchical porosity, enhanced BN‐like ordering, and fibril‐reinforced mechanics. These ultralight materials combine thermal stability with strong sound absorption and transmission loss, offering a sustainable bio‐assisted route toward lightweight acoustic shields ...
Mohammad Peydayesh   +8 more
wiley   +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

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

Topology‐Orchestrated Multi‐physical Energy Control in Turtle Shell‐Inspired Metamaterials

open access: yesAdvanced Materials, EarlyView.
A turtle shell‐inspired lattice metamaterial efficiently manages acoustic, fluid‐thermal, and mechanical energy flows simultaneously. The unique hybrid‐coupling architecture achieves superior sound attenuation via pore‐cavity resonance, facilitates effective airflow transport, and maximizes mechanical energy absorption through multistage cell ...
Xi Wang   +3 more
wiley   +1 more source

Outlier Detection for Sensor Systems (ODSS): A MATLAB Macro for Evaluating Microphone Sensor Data Quality

open access: yesSensors, 2017
Microphone sensor systems provide information that may be used for a variety of applications. Such systems generate large amounts of data. One concern is with microphone failure and unusual values that may be generated as part of the information ...
Robert Vasta   +4 more
doaj   +1 more source

Comparison of LMS adaptive beamforming techniques in microphone arrays [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2015
This paper discusses principles of microphone array beamforming, specifically the use of LMS algorithm with training sequence. The problem of wideband nature of acoustical signals and its impact on the techniques of beamforming are discussed ...
Bjelić Miloš, Stanojević Miodrag
doaj   +1 more source

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