DS/HD 305 S1
IEC reference coupler for the measurement of hearing aids using earphones coupled to the ear by means of ear inserts
inactive, Most Current
| Organization: | DS |
| Publication Date: | 7 December 1995 |
| Status: | inactive |
| ICS Code (Aids for deaf and hearing impaired people): | 11.180.15 |
scope:
Describes a coupler for loading the earphone with a specified acoustic impedance when determining the physical performance characteristics, in the frequency range 200 Hz to 5 000 Hz, of air-conduction hearing aids using earphones coupled to the ear by means of ear inserts, e.g. ear moulds or similar devices.
Document History
DS/HD 305 S1
December 7, 1995
IEC reference coupler for the measurement of hearing aids using earphones coupled to the ear by means of ear inserts
Describes a coupler for loading the earphone with a specified acoustic impedance when determining the physical performance characteristics, in the frequency range 200 Hz to 5 000 Hz, of...
References
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