NEN 10118-4
Hearing aids - Methods of measurement of electroacoustical characteristics - Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposes
inactive, Most Current
| Organization: | NEN |
| Publication Date: | 1 August 1988 |
| Status: | inactive |
| ICS Code (Electroacoustics): | 17.140.50 |
scope:
This standard applies to audio-frequency induction loop systems producing an alternating magnetic field and intended to provide an input signal for hearing aids operating with an induction pick-up coil. The object of this standard is to specify a standard value of magnetic field strength in audiofrequency induction loops for hearing aid purposes, such as will give an adequate signal-to-noise ratio without overloading the hearing aid.
Document History
NEN 10118-4
August 1, 1988
Hearing aids - Methods of measurement of electroacoustical characteristics - Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposes
This standard applies to audio-frequency induction loop systems producing an alternating magnetic field and intended to provide an input signal for hearing aids operating with an induction pick-up...