BS 6111:1981
$50.69
Specification for reference coupler for the measurement of hearing aids using earphones coupled to the ear by means of ear inserts
| Published By | Publication Date | Number of Pages |
| BSI | 1981 | 12 |
Describes a coupler for loading the earphones with a specific acoustic impedance when determining the physical performance characteristics. Not intended for determining performance of a hearing aid on a person but only as a simple means for the exchange of data.
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