Effects of background noise on click-evoked otoacoustic emissions. 1998

K Rhoades, and B McPherson, and V Smyth, and J Kei, and A Baglioni
Department of Speech Pathology and Audiology, The University of Queensland, Brisbane, Australia.

OBJECTIVE To investigate the effect of increased levels of background noise on click-evoked otoacoustic emission (CEOAE) recordings and to compare the effectiveness of the default CEOAE program with the QuickScreen CEOAE program in increased levels of noise, using an Otodynamics ILO88 recording device. METHODS The right ears of 40 young adult women with normal hearing were assessed using CEOAEs under four different noise conditions and with two different methods of data collection. The noise conditions were in quiet, 50 dB A, 55 dB A, and 60 dB A of white noise. Data were collected at each noise level in the default mode and also using the ILO88 QuickScreen program. RESULTS There was a significant change in a number of important CEOAE output parameters with increased noise. In the default mode, mean whole wave reproducibility was 89.2% in quiet but declined to 85% with 50 dB A of white noise, 65% at 55 dB A and 20% at 60 dB A. The QuickScreen program proved more robust to the effects of noise than the default. In that mode, mean whole wave reproducibility was 91.7% in quiet, 92.5% with 50 dB A of white noise, 82.5% at 55 dB A and 45% at 60 dB A. CONCLUSIONS The findings of the study indicate ambient noise levels for accurate CEOAE recording should not exceed 50 to 55 dB A of noise and alternatives to the default program should be considered in non-sound-treated situations.

UI MeSH Term Description Entries
D008297 Male Males
D009622 Noise Any sound which is unwanted or interferes with HEARING other sounds. Noise Pollution,Noises,Pollution, Noise
D003051 Cochlea The part of the inner ear (LABYRINTH) that is concerned with hearing. It forms the anterior part of the labyrinth, as a snail-like structure that is situated almost horizontally anterior to the VESTIBULAR LABYRINTH. Cochleas
D005260 Female Females
D006317 Hearing Loss, Noise-Induced Hearing loss due to exposure to explosive loud noise or chronic exposure to sound level greater than 85 dB. The hearing loss is often in the frequency range 4000-6000 hertz. Acoustic Trauma,Hearing Loss, Noise Induced,Noise-Induced Hearing Loss
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000161 Acoustic Stimulation Use of sound to elicit a response in the nervous system. Auditory Stimulation,Stimulation, Acoustic,Stimulation, Auditory
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults

Related Publications

K Rhoades, and B McPherson, and V Smyth, and J Kei, and A Baglioni
June 1998, IEEE transactions on bio-medical engineering,
K Rhoades, and B McPherson, and V Smyth, and J Kei, and A Baglioni
July 1995, Hearing research,
K Rhoades, and B McPherson, and V Smyth, and J Kei, and A Baglioni
October 1995, Ear and hearing,
K Rhoades, and B McPherson, and V Smyth, and J Kei, and A Baglioni
February 1999, British journal of audiology,
K Rhoades, and B McPherson, and V Smyth, and J Kei, and A Baglioni
April 1990, Ear and hearing,
K Rhoades, and B McPherson, and V Smyth, and J Kei, and A Baglioni
December 1995, Ear and hearing,
K Rhoades, and B McPherson, and V Smyth, and J Kei, and A Baglioni
November 2000, The Journal of the Acoustical Society of America,
K Rhoades, and B McPherson, and V Smyth, and J Kei, and A Baglioni
January 1999, Audiology : official organ of the International Society of Audiology,
K Rhoades, and B McPherson, and V Smyth, and J Kei, and A Baglioni
April 1997, Hearing research,
K Rhoades, and B McPherson, and V Smyth, and J Kei, and A Baglioni
April 2009, International journal of pediatric otorhinolaryngology,
Copied contents to your clipboard!