Results 11 to 20 of about 1,058,558 (285)
PRODUCTION AND PERCEPTUAL ANALYSIS OF SPEECH PRODUCED IN NOISE [PDF]
, 2010 When exposed to noise, speakers modify the way they speak, possibly in an effort to maintain intelligible communication. These modifications are collectively referred to as the Lombard effect.
LU, YOUYI
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Aero-acoustic performance of a continuous transonic wind-tunnel axial-flow compressor
Xibei Gongye Daxue Xuebao, 2022 A three-stage axial-flow compressor was developed for a continuous transonic wind tunnel. The rotor-stator spacing and the ratio of number of rotor blades to number of stator vanes were properly chosen for the purpose of aero-acoustic noise suppression ...
LONG Bingxiang +4 more
doaj +1 more source
On the receptivity of aerofoil tonal noise: an adjoint analysis [PDF]
Journal of Fluid Mechanics, 2017 For moderate-to-high Reynolds numbers, aerofoils are known to produce substantial levels of acoustic radiation, known as tonal noise, which arises from a complex interplay between laminar boundary-layer instabilities, trailing-edge acoustic scattering and upstream receptivity of the boundary layers on both aerofoil surfaces.
Fosas de Pando, Miguel +2 more
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Review of Control Technologies for Quiet Operations of Advanced Air-Mobility
Applied Sciences, 2023 The current technologies for developing quiet rotor noise in urban canyons are reviewed. Several passive noise control approaches are discussed with their limitations in reducing both tonal and broadband noise.
Samuel Afari +3 more
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Applied Sciences, 2021 Low-frequency audible noise generated by the magnetostriction effect inherent to the operation of power transformers has become a major drawback, especially in cases where the electrical substation is located in urban areas subject to strict ...
Rogerio Regazzi +7 more
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aMpLiTuDe MoDuLaTeD noise for tinnitus suppression in tonal and noise-like tinnitus [PDF]
Audiology and Neurotology, 2019 Abstract Background Acoustic stimulation offers a potential treatment approach for tinnitus but also in-sights in its basic mechanisms by short-term tinnitus suppression called residual inhibition (RI).
Schoisswohl, S. +5 more
openaire +2 more sources
Alternator Tonal Noise Target Setting
, 2003 The aim of the research reported in this paper is to develop a procedure to determine target levels for the tonal noise emitted by a vehicle alternator. The investigation begins with a study into the contribution of the alternator to the noise inside the
Walsh, S.J. +3 more
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An experimental study of airfoil instability tonal noise with trailing edge serrations [PDF]
, 2013 This paper presents an experimental study of the effect of trailing edge serrations on airfoil instability noise. Detailed aeroacoustic measurements are presented of the noise radiated by an NACA-0012 airfoil with trailing edge serrations in a low to ...
Joseph, PF, Chong, TP
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Self-noise produced by an airfoil with nonflat plate trailing-edge serrations [PDF]
, 2013 This paper represents the results of an experimental study aimed at reducing the airfoil self-noise by the trailing edge serration of four different sawtooth geometries (defined in the serration angle and length).
Vathylakis, A +3 more
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Control of trailing-edge noise from airfoil using a plasma actuator
Journal of Fluid Science and Technology, 2018 Control of noise generation at an airfoil trailing-edge was conducted using a plasma actuator for an NACA0012 airfoil with an angle of attack of -2° at a chord Reynolds number Re = 1.6×105, where the boundary-layer instability on the pressure side was ...
Ayumu INASAWA, Yui KAGAWA
doaj +1 more source