Results 151 to 160 of about 143,601 (184)

The Effect of Altitude on Absolute Hearing Threshold Levels

Proceedings of the Human Factors Society Annual Meeting, 1982
The present study investigates the effect of hypobaric environments on absolute hearing thresholds for pure tones at octave frequencies between 250 Hz and 8 kHz. Absolute hearing thresholds were obtained for ten subjects at ambient pressure (732 mmHg) and at an altitude of 6500 feet (582 mmHg), relative to the laboratory. Subjects were decompressed in
I. B. Mekjavic, D. Sinclair, D. Steele, N. S. Longridge   +3 more
semanticscholar   +4 more sources

The absolute threshold of hearing changes by perceiving a previous sound in the contralateral, ipsilateral, and both ears

The Journal of the Acoustical Society of America, 2007
This study investigated the effects of a previous sound on loudness at the absolute threshold of hearing. Change of the absolute threshold of hearing was measured when a pure tone preceded the test tone in the measurement of the threshold. The previous sound at 60 dB SPL was presented first in one ear, and then the test sound was presented in either ...
Hiroshi Hasegawa, Junji Yoshida, Masao Kasuga, Yu Watanabe   +3 more
semanticscholar   +3 more sources

How often is human auditory detection in natural environments limited by our absolute hearing thresholds?

The Journal of the Acoustical Society of America, 2017
The National Park Service (NPS) has collected long-term sound level measurements from more than 800 sites, using equipment that measures 1 second, 1/3rd octave band levels. One-third octave bands approximate the critical bands for the human auditory system, and the initial motivation for collecting these data was to predict the levels at which incoming
Kurt M. Fristrup, Damon Joyce
semanticscholar   +3 more sources

Binaural Advantage at the Absolute Threshold of Hearing

International Audiology, 1968
W. Tempest, M. E. Bryan, Jacqueline A. Marsh   +2 more
semanticscholar   +3 more sources

On the Use of Absolute Threshold of Hearing-based Loss for Full-band Speech Enhancement

2022 13th International Symposium on Chinese Spoken Language Processing (ISCSLP), 2022
In this paper, we investigate the use of a perceptually motivated loss function for training single-channel full-band speech enhancement models. Specifically, we modify the conventional squared error loss function by incorporating the use of a frequency ...
Rohith Mars, Rohan Kumar Das
semanticscholar   +3 more sources

Hearing in passerine and psittacine birds: A comparative study of absolute and masked auditory thresholds.

Journal of Comparative Psychology, 1987
Operant conditioning and a psychophysical tracking procedure were used to measure auditory thresholds for pure tones in quiet and in noise for seven species of small birds--the budgerigar, canary, cockatiel, European starling, song sparrow, swamp sparrow, and the zebra finch. Audibility curves are roughly similar among the seven birds, with the maximum
K, Okanoya, R J, Dooling
  +5 more sources

Absolute Thresholds of Human Hearing

American Industrial Hygiene Association Journal, 1967
Abstract Data obtained from high school students indicate that distributions of hearing thresholds determined by puretone audiometry are log-normal. A graphically simplified mathematical method for determining the loci of absolute thresholds of human hearing is presented.
E R, Hermann, B R, Holzman
openaire   +3 more sources

Abnormal speech processing in frequency regions where absolute thresholds are normal for listeners with high-frequency hearing loss

Hearing Research, 2012
The ability to understand speech in quiet and in a steady noise was measured for 26 listeners with audiometric thresholds below 30 dB HL for frequencies up to 3 kHz and covering a wide range (0-80 dB HL) between 3 and 8 kHz. The stimulus components were restricted to the low (≤1.5 kHz) and middle (1-3 kHz) frequency regions, where audiometric ...
Léger, Agnés C., Moore, Brian C J, Lorenzi, Christian   +2 more
openaire   +4 more sources

Absolute hearing thresholds and critical masking ratios in the European barn owl: a comparison with other owls

Journal of Comparative Physiology A: Sensory, Neural, and Behavioral Physiology, 1998
Absolute thresholds and critical masking ratios were determined behaviorally for the European barn owl (Tyto alba guttata). It shows an excellent sensitivity throughout its hearing range with a minimum threshold of −14.2 dB sound pressure level at 6.3 kHz, which is similar to the sensitivity found in the American barn owl (Tyto alba pratincola) and ...
M. L. Dyson, G. M. Klump, B. Gauger
openaire   +2 more sources

Hearing in the parakeet (Melopsittacus undulatus): Absolute thresholds, critical ratios, frequency difference limens, and vocalizations.

Journal of Comparative and Physiological Psychology, 1975
Avoidance conditioning and the method of limits were used to measure absolute auditory thresholds, masked thresholds, and critical ratios in 4 parakeets. The same procedure was then used to study frequency difference limens in 6 additional animals. The power spectrum and "constancy of intonation" of the parakeet call were also measured and related to ...
R J, Dooling, J C, Saunders
openaire   +3 more sources