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Acoustic measures of low-frequency noise in extended high-frequency audiometry


Schmuziger, N; Brechbuehl, M; Probst, R (2007). Acoustic measures of low-frequency noise in extended high-frequency audiometry. Journal of the Acoustical Society of America, 121(3):EL120-EL124.

Abstract

A very high signal-to-noise ratio is required for equipment designed for extended high-frequency audiometry because listeners with almost no hearing ability in the extended high-frequency range may have normal hearing sensitivity in the lower frequencies. Two commercially available systems designed for pure-tone audiometry were evaluated both in the conventional and extended high-frequency range. Unwanted lower frequency signals greater than the noise floor occurred predominantly at presentation levels of approximately 110 dB SPL or higher. Test tones in the extended high-frequency range should be restricted to levels that are not associated with lower frequency noise.

Abstract

A very high signal-to-noise ratio is required for equipment designed for extended high-frequency audiometry because listeners with almost no hearing ability in the extended high-frequency range may have normal hearing sensitivity in the lower frequencies. Two commercially available systems designed for pure-tone audiometry were evaluated both in the conventional and extended high-frequency range. Unwanted lower frequency signals greater than the noise floor occurred predominantly at presentation levels of approximately 110 dB SPL or higher. Test tones in the extended high-frequency range should be restricted to levels that are not associated with lower frequency noise.

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Additional indexing

Item Type:Journal Article, refereed, further contribution
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Otorhinolaryngology
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:2007
Deposited On:31 Mar 2009 09:51
Last Modified:05 Apr 2016 12:43
Publisher:Acoustical Society of America
ISSN:0001-4966
Publisher DOI:https://doi.org/10.1121/1.2437848
Official URL:http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=JASMAN0001210000030EL120000001&idtype=cvips&prog=normal
PubMed ID:17407920

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