Name: Electroacoustics - Hearing aids - Part 4: Induction-loop systems for hearing aid purposes - System performance requirements
Identifier: IEC 60118-4:2014
Issuing Organisation: International Electrotechnical Commission
Organization website (opens in new window): https://webstore.iec.ch/
Link to standard (opens in new window): https://webstore.iec.ch/publication/798
Availability: Available to Purchase
Type: International Standard
Issue Year: 2014
Forward Review Date: Not known
Intended Audiences: Older People, Carers, and Third (Voluntary) Sector Bodies
IEC 60118-4:2014 is applicable to audio-frequency induction-loop systems producing an alternating magnetic field at audio frequencies and intended to provide an input signal for hearing aids operating with an induction pick-up coil (telecoil). Throughout this standard, it is assumed that the hearing aids used with it conform to all relevant parts of IEC 60118. This standard specifies requirements for the field strength in audio-frequency induction loops for hearing aid purposes, which will give adequate signal-to-noise ratio without overloading the hearing aid. The standard also specifies the minimum frequency response requirements for acceptable intelligibility.
Methods for measuring the magnetic field strength are specified, and information is given on appropriate measuring equipment, information that should be provided to the operator and users of the system, and other important considerations.
This standard does not specify requirements for loop driver amplifiers or associated microphone or audio signal sources, which are dealt with in IEC 62489-1, or for the field strength produced by equipment, such as telephone handsets, within the scope of ITU-T P.370. This third edition cancels and replaces the second edition published in 2006.
Relevance to Active and Healthy Ageing: Medium
Older Person Specific: No
Usage / Adoption status: Not known
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