[AUDITORY] A question about calibration of very high frequencies

Subject: [AUDITORY] A question about calibration of very high frequencies

From: Hébert Sylvie <sylvie.hebert@xxxxxxxxxxxx>

Date: Wed, 29 May 2019 20:29:26 +0000

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Reply-to: Hébert Sylvie <sylvie.hebert@xxxxxxxxxxxx>

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Thread-topic: A question about calibration of very high frequencies

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Dear List,

We would like to calibrate our equipment to verify that it is capable to sending low-intensity narrowband noises just above auditory threshold. We have found that the baseline noise levels were exceptionally high for band frequencies above 8kHz. Can anyone explain why this may be the case? Does anyone have any suggestions for how to approach measuring very low-intensity sounds?

Thanks,

Sylvie Hébert, Ph.D., Professor

School of Speech pathology and audiology

Pavillon 7077, Parc ave. - 3rd floor - room 3001-34

Faculty of medicine | Université de Montréal

Address : c.p. 6128, succ. Centre-ville, Montréal,

H3C 3J7 Tel: (514) 343-6111 #2594

www.eoa.umontreal.ca

Regular member

International laboratory for Brain, Music, and Sound Research (BRAMS)

Center for Research on Brain, Language, and Music