IEC-118-9 › Hearing aids. Part 9: Methods of measurement of characteristics of hearing aids with bone vibrator output
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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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17.140.50 (Electroacoustics Including sound level meters)
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Document Number
IEC 60118-9 Ed. 1.0 b:1985
Revision Level
1ST EDITION
Status
Superseded
Publication Date
Jan. 1, 1985
Committee Number
29