Results 281 to 290 of about 1,911,724 (315)

The effects of aging on otoacoustic emissions

The Journal of the Acoustical Society of America, 1993
Otoacoustic emissions were measured in 42 normal hearing subjects ranging from 20 to 80 years old. For each subject spontaneous, click-evoked, tone-burst-evoked, stimulus frequency and distortion product emissions were measured across a wide intensity range for frequencies between 1 and 3 kHz.
Susan J. Norton, Lisa J. Stover
openaire   +3 more sources

A Case of 'Spontaneous Otoacoustic Emission'

Archives of Otolaryngology - Head and Neck Surgery, 1987
A 25-year-old man produced a continuous high-pitched pure tone (6.1 kHz, 37.2-dB sound pressure level) in his right ear. The tone was not audible to the patient. He had sensorineural deafness over 1 kHz with a dip of 45 dB at 6 kHz. The tone was considered to be emitted through the eardrum from the inner ear, ie, a "spontaneous otoacoustic emission".
Akira Takagi, Nobuya Yagi, Etsuo Yamamoto, Yoshinobu Hirono   +3 more
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Generation place of the long- and short-latency components of transient-evoked otoacoustic emissions in a nonlinear cochlear model.

Journal of the Acoustical Society of America, 2013
Time-domain numerical solutions of a nonlinear active cochlear model forced by click stimuli are analyzed with a time-frequency wavelet technique to identify the components of the otoacoustic response associated with different generation mechanisms ...
A. Moleti, A. Al-Maamury, D. Bertaccini, T. Botti, R. Sisto   +4 more
semanticscholar   +1 more source

Otoacoustic emissions and quinine sulfate

The Journal of the Acoustical Society of America, 1994
A moderate dose of quinine sulfate, administered to three young adult males, reduced or eliminated various forms of otoacoustic emission (OAE). The individual differences in response to the drug were substantial, but a number of generalizations did emerge. The time courses of onset and recovery were considerably more rapid than for the parallel effects
Edward G. Pasanen, Dennis McFadden
openaire   +3 more sources

Time-frequency domain filtering of evoked otoacoustic emissions.

Journal of the Acoustical Society of America, 2012
Time-domain filtering is a standard analysis technique, which is used to disentangle the two main vector components of the distortion product otoacoustic emission response, exploiting their different phase-frequency relation.
A. Moleti, Federica Longo, R. Sisto
semanticscholar   +1 more source

High rate otoacoustic emissions

The Journal of the Acoustical Society of America, 1993
One of the practical problems of testing young children using evoked otoacoustic emissions (EOAEs) is that there is a need for the child to be quiet for a period of a minute or so. To achieve this can mean test periods of 10 min or longer. A new application of maximum length sequences (MLSs) to EOAEs is described that enables the test to be performed ...
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Contralateral suppression of transient otoacoustic emissions and sentence recognition in noise in young adults.

Journal of american academy of audiology, 2012
BACKGROUND One purported role of the medial olivocochlear (MOC) efferent system is to reduce the effects of masking noise. MOC system functioning can be evaluated noninvasively in humans through contralateral suppression of otoacoustic emissions.
A. Stuart, Alyson K Butler
semanticscholar   +1 more source

Chirp evoked otoacoustic emissions

Hearing Research, 1994
The principles of short frequency sweeps (chirps) and their application to evoke transiently evoked otoacoustic emissions (TEOAE) are developed in comparison to using standard click stimuli. In contrast to click stimuli, chirp signals have the advantage of stimulating a freely selectable frequency range.
Birger Kollmeier, Joachim Neumann, Stefan Uppenkamp   +2 more
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Are human spontaneous otoacoustic emissions generated by a chain of coupled nonlinear oscillators?

Journal of the Acoustical Society of America, 2012
Spontaneous otoacoustic emissions (SOAEs) are generated by self-sustained cochlear oscillators. Properties of a computational model for a linear array of active oscillators with nearest neighbor coupling are investigated.
H. Wit, P. van Dijk
semanticscholar   +1 more source

A model for the relation between stimulus frequency and spontaneous otoacoustic emissions in lizard papillae.

Journal of the Acoustical Society of America, 2012
Spontaneous otoacoustic emissions (SOAEs) and stimulus frequency otoacoustic emissions (SFOAEs) have been described from lizard ears. Although there are several models for these systems, none has modeled the characteristics of both of these types of ...
H. Wit, P. van Dijk, G. Manley
semanticscholar   +1 more source