Masking noise reduces the anti-predator-like response to an acoustic stimulus: Application of Signal Detection Theory to fish behaviour. [PDF]
PLoS ONEIn studies of animal cognition, the influence of background masking noise on responses to any particular stimulus are often overlooked. In fish, there is little understanding of their response to targeted acoustic stimuli in the presence of high ...
Helen A L Currie +3 more
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Switch of tonal noise generation mechanisms in airfoil transitional flows [PDF]
Physical Review Fluids, 2022 Large eddy simulations are performed to study tonal noise generation by a NACA0012 airfoil at an angle of attack ${\alpha = 3}$ deg. and freestream Mach number of ${M_{\infty} = 0.3}$.
Túlio R. Ricciardi, W. Wolf
semanticscholar +1 more source
Tonal noise of voluteless centrifugal fan generated by turbulence stemming from upstream inlet gap [PDF]
The Physics of Fluids, 2021 In this study, noise generation is investigated for a generic voluteless centrifugal HVAC fan at an off-design operation point where tonal noise increases.
M. Ottersten, H. Yao, L. Davidson
semanticscholar +1 more source
The effect of sensorineural hearing loss on suprathreshold perception of tonal components in noise [PDF]
JASA Express Letters, 2022 The present study investigates how sensorineural hearing loss affects the perception of suprathreshold tonal components in noise. Masked threshold, tonality, and loudness of the tonal content are measured for one, two, or four simultaneously presented ...
Jan Hots +2 more
doaj +1 more source
Lateralization of tonal signals in noise [PDF]
Bulletin of the Psychonomic Society, 1980 When listeners attempt to localize a tone in noise, the “signal” for lateralization is the change in interaural phase between tone plus noise and the interaural phase of the noise alone. Data are presented showing how lateralization performance varies as a function of the interaural correlation of the noise, signal-to-noise ratio, and tone frequency ...
Thomas F. Elliott, W. A. Wilbanks
openaire +1 more source
Aerodynamic and Aeroacoustic Analysis of a Harmonically Morphing Airfoil Using Dynamic Meshing
Acoustics, 2021 This work explores the aerodynamic and aeroacoustic responses of an airfoil fitted with a harmonically morphing Trailing Edge Flap (TEF). An unsteady parametrization method adapted for harmonic morphing is introduced, and then coupled with dynamic ...
Chawki Abdessemed +2 more
doaj +1 more source
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
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
doaj +1 more source
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
doaj +1 more source
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