Calibration Force Levels for Bone Conduction Vibrators Two bone conduction vibrators (Radioear B71 and B72) and a headband (Radioear P-3333) have been developed to meet specifications of both the International Electrotechnical Commission and the American National Standards Institute. Pure-tone thresholds for air conduction and bone conduction were obtained from 24 normal-hearing young adults at audiometric frequencies between ... Research Article
Research Article  |   December 01, 1977
Calibration Force Levels for Bone Conduction Vibrators
 
Author Affiliations & Notes
  • Bradley L. Billings
    Audiology Center of Redlands, Redlands, California
  • Margaret Winter
    University of Redlands, Redlands, California
Article Information
Research Articles
Research Article   |   December 01, 1977
Calibration Force Levels for Bone Conduction Vibrators
Journal of Speech, Language, and Hearing Research, December 1977, Vol. 20, 653-660. doi:10.1044/jshr.2004.653
History: Received June 11, 1976 , Accepted March 25, 1977
 
Journal of Speech, Language, and Hearing Research, December 1977, Vol. 20, 653-660. doi:10.1044/jshr.2004.653
History: Received June 11, 1976; Accepted March 25, 1977

Two bone conduction vibrators (Radioear B71 and B72) and a headband (Radioear P-3333) have been developed to meet specifications of both the International Electrotechnical Commission and the American National Standards Institute. Pure-tone thresholds for air conduction and bone conduction were obtained from 24 normal-hearing young adults at audiometric frequencies between 250 and 4000 Hz. Results of this study are in good agreement with the standard air conduction threshold sound pressure levels (ANSI) and with bone conduction threshold force levels reported in the literature.

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