IEC 60118-9:1985 Withdrawn

Hearing aids. Part 9: Methods of measurement of characteristics of hearing aids with bone vibrator output

Note: this publication has been replaced by IEC 60118-9:2019


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Defines a method of expressing the input/output ratio as an acousto-mechanical sensitivity level measured on a mechanical coupler according to the second edition of IEC 60373. Provides a suitable basis for the exchange of information or for direct comparison of the electroacoustic characteristics of hearing aids using bone vibrator outputs. The methods chosen are practical and reproducible and are based on selected fixed parameters.

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Additional information

Publication typeInternational Standard
Publication date1985-01-01
Available language(s)English/French
TC/SCTC 29 - Electroacousticsrss
ICS17.140.50 - Electroacoustics
Stability date  2020
File size1066 KB

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