A Simplified Method for Calibrating a Sound-Level Meter for Use With a Brüel & Kjær Artificial Mastoid The standard method for calibrating a sound-level meter for use with the Brüel & Kjær Artificial Mastoid for bone vibrator tests entails the use of a signal generator, a precision voltmeter, and possibly a frequency counter. This equipment should be certified annually and traceable to the National Institute of Standards ... Research Article
Research Article  |   October 01, 1998
A Simplified Method for Calibrating a Sound-Level Meter for Use With a Brüel & Kjær Artificial Mastoid
 
Author Affiliations & Notes
  • Richard W. Harris, PhD
    Department of Audiology and Speech-Language Pathology, 131 TLRB, P.O. Box 28654, Brigham Young University, Provo, UT 84602-8653
  • Robert C. Chanaud
    Larson-Davis Laboratories, Provo, UT
  • Corresponding author: e-mail: Richard_Harris@byu.edu
Article Information
Hearing Disorders / Swallowing, Dysphagia & Feeding Disorders / Research Articles
Research Article   |   October 01, 1998
A Simplified Method for Calibrating a Sound-Level Meter for Use With a Brüel & Kjær Artificial Mastoid
American Journal of Audiology, October 1998, Vol. 7, 61-72. doi:10.1044/1059-0889(1998/011)
History: Received June 19, 1997 , Accepted May 20, 1998
 
American Journal of Audiology, October 1998, Vol. 7, 61-72. doi:10.1044/1059-0889(1998/011)
History: Received June 19, 1997; Accepted May 20, 1998

The standard method for calibrating a sound-level meter for use with the Brüel & Kjær Artificial Mastoid for bone vibrator tests entails the use of a signal generator, a precision voltmeter, and possibly a frequency counter. This equipment should be certified annually and traceable to the National Institute of Standards and Technology (NIST), and its use generally restricts calibration to a laboratory environment and requires a considerable amount of time. We have developed a simplified method for calibrating the sound-level meter by using a sound-level calibrator and microphone. Using the known sensitivities of the microphone and the artificial mastoid, the sound-level calibrator used for calibration of the microphone may also be used for calibration of the sound-level meter to measure force levels with the artificial mastoid.

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