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EVS-EN 60318-5:2006

Electroacoustics - Simulators of human head and ear -- Part 5: 2 cm³ coupler for the measurement of hearing aids and earphones coupled to the ear by means of ear inserts

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Kehtiv alates 08.12.2006
Alusdokumendid
IEC 60318-5:2006; EN 60318-5:2006
Tegevusala (ICS grupid)
17.140.50 Elektroakustika
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Standardi ajalugu

Staatus
Kuupäev
Tüüp
Nimetus
08.12.2006
Põhitekst
This part of IEC 60318 describes an acoustic coupler for loading an earphone or hearing aid with a specified acoustic impedance when determining its physical performance characteristics, in the frequency range 125 Hz to 8 kHz. It is suitable for air conduction hearing aids and earphones, coupled to the ear by means of ear inserts e.g. ear moulds or similar devices. The sound pressure developed by an earphone is not, in general, the same in the coupler as in a person’s ear. However, it can be used as a simple and ready means for the exchange of specifications and of physical data on hearing aids and for the calibration of specified insert earphones used in audiometry.

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