Results 51 to 60 of about 75,884 (201)

A Unified Theory of Psychophysical Laws in Auditory Intensity Perception

open access: yesFrontiers in Psychology, 2020
Psychophysical laws quantitatively relate perceptual magnitude to stimulus intensity. While most people have accepted Stevens’s power function as the psychophysical law, few believe in Fechner’s original idea using just-noticeable-differences (jnd) as a ...
Fan-Gang Zeng
doaj   +1 more source

Influence of Color on Loudness Perception of Household Appliances: Case of a Coffee Maker

open access: yesDesigns, 2022
Previous studies have investigated the effect of color on the assessment of loudness in various cases, such as cars, trains, and concert halls. This study sets out to explore the influence of color on the loudness perception of household appliances, in ...
Nikolaos M. Papadakis   +3 more
doaj   +1 more source

A Novel Combined System of Direction Estimation and Sound Zooming of Multiple Speakers [PDF]

open access: yes, 2015
This article presents a new system for estimation the direction of multiple speakers and zooming the sound of one of them at a time. The proposed system is a combination of two levels; namely, sound source direction estimation, and acoustic zooming.
Khaddour, H., Rund, F., Schimmel, J.
core   +2 more sources

Music vs noise: a comparison of loudness estimates

open access: yesArchives of Acoustics, 2014
The aim of this study was to examine whether loudness estimates of music are performed according to the same principles as loudness judgements of non-musical sounds.
A. MIŚKIEWICZ, A. RAKOWSKI
doaj  

Achieving across-laboratory replicability in psychophysical scaling

open access: yesFrontiers in Psychology, 2015
It is well known that, although psychophysical scaling produces good qualitative agreement between experiments, precise quantitative agreement between experimental results, such as that routinely achieved in physics or biology, is rarely or never ...
Lawrence McCue Ward   +6 more
doaj   +1 more source

The Lee Silverman Voice Treatment Improves Vocal Loudness in Early Persian-speaking Patients With Parkinson’s Disease [PDF]

open access: yesIranian Rehabilitation Journal, 2021
Objectives: In the early stages, most Parkinson’s patients display some degrees of voice and speech disorders. Speech disorders can negatively affect individuals’ social interactions and life; thus, treatment plans for the disorders in the early stages ...
Younes Amiri Shavaki   +3 more
doaj  

Surface electromyographic (sEMG) activity of the suprahyoid and sternocleidomastoid muscles in pitch and loudness control

open access: yesFrontiers in Physiology, 2023
Purpose: This study set out to determine the contributions of the suprahyoid and sternocleidomastoid (SCM) muscles in changing pitch and loudness during phonation among vocally healthy populations.Method: Thirty-nine participants were first recruited ...
Feifan Wang, Edwin M.-L. Yiu
doaj   +1 more source

Radio Properties of Low Redshift Broad Line Active Galactic Nuclei

open access: yes, 2008
The question as to whether the distribution of radio-loudness in active galactic nuclei (AGN) is actually bimodal has been discussed extensively in the literature.
Cirasuolo   +25 more
core   +1 more source

Disclosing the Radio Loudness Distribution Dichotomy in Quasars: An Unbiased Monte Carlo Approach Applied to the SDSS-FIRST Quasar Sample [PDF]

open access: yes, 2012
We investigate the dichotomy in the radio loudness distribution of quasars by modelling their radio emission and various selection effects using a Monte Carlo approach. The existence of two physically distinct quasar populations, the radio-loud and radio-
B. C. Kelly   +34 more
core   +4 more sources

The black hole fundamental plane from a uniform sample of radio and X-ray emitting broad line AGNs

open access: yes, 2006
We derived the black hole fundamental plane relationship among the 1.4GHz radio luminosity (L_r), 0.1-2.4keV X-ray luminosity (L_X), and black hole mass (M) from a uniform broad line SDSS AGN sample including both radio loud and radio quiet X-ray ...
Akritas M. G.   +6 more
core   +1 more source

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