Infrasonic and low-frequency insert earphone hearing threshold

Low-frequency and infrasonic pure-tone monaural hearing threshold data down to 2.5 Hz are presented. These measurements were made by means of a newly developed insert-earphone source. The source is able to generate pure-tone sound pressure levels up to 130 dB between 2 and 250 Hz with very low harmo...

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Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2015-04, Vol.137 (4), p.EL347-EL353
Main Authors: Kuehler, Robert, Fedtke, Thomas, Hensel, Johannes
Format: Article
Language:English
Subjects:
Acoustics - instrumentation
Adolescent
Adult
Amplifiers, Electronic
Audiometry, Pure-Tone
Auditory Threshold - physiology
Female
Hearing - physiology
Humans
Male
Young Adult
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Summary:Low-frequency and infrasonic pure-tone monaural hearing threshold data down to 2.5 Hz are presented. These measurements were made by means of a newly developed insert-earphone source. The source is able to generate pure-tone sound pressure levels up to 130 dB between 2 and 250 Hz with very low harmonic distortions. Behavioral hearing thresholds were determined in the frequency range from 2.5 to 125 Hz for 18 otologically normal test persons. The median hearing thresholds are comparable to values given in the literature. They are intended for stimulus calibration in subsequent brain imaging investigations.
ISSN:0001-4966
1520-8524
DOI:10.1121/1.4916795