BS EN IEC 60118-4:2015+A1:2018
Current
The latest, up-to-date edition.
Electroacoustics. Hearing aids Induction-loop systems for hearing aid purposes. System performance requirements
Hardcopy , PDF
English
30-04-2018
Important note : Users cannot be edited or removed once added to your Multi user PDF.| Committee |
EPL/29
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| DevelopmentNote |
Supersedes & Redesignates BS EN 60118-4. 2015 Edition Re-Issued in April 2018 & incorporates AMD 1 2018. (05/2018)
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| DocumentType |
Standard
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| Pages |
58
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| PublisherName |
British Standards Institution
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| Status |
Current
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| Supersedes |
This part of IEC60118 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 IEC60118.
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 (see AnnexB), information that should be provided to the operator and users of the system (see AnnexC), 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 IEC62489-1, or for the field strength produced by equipment, such as telephone handsets, within the scope of ITU-TP.370.
| Standards | Relationship |
| EN IEC 60118-4:2015/A1:2018 | Identical |
| IEC 60118-4:2014/AMD1:2017 | Identical |
| HD 483.10 : 200S1 | SOUND SYSTEM EQUIPMENT - PART 10: PEAK PROGRAMME LEVEL METERS |
| IEC 62489-1:2010+AMD1:2014 CSV | Electroacoustics - Audio-frequency induction loop systems for assisted hearing - Part 1: Methods of measuring and specifying theperformance of system components |
| IEC 60268-3:2013 | Sound system equipment - Part 3: Amplifiers |
| IEC 60268-10:1991 | Sound system equipment - Part 10: Peak programme level meters |
| EN 61672-1:2013 | Electroacoustics - Sound level meters - Part 1: Specifications |
| EN 60268-3:2013 | Sound system equipment - Part 3: Amplifiers |
| IEC 61938:2013 | Multimedia systems - Guide to the recommended characteristics of analogue interfaces to achieve interoperability |
| IEC 61260-1:2014 | Electroacoustics - Octave-band and fractional-octave-band filters - Part 1: Specifications |
| IEC 60268-1:1985 | Sound system equipment. Part 1: General |
| TR 101 767 : 1.1.1 | HUMAN FACTORS (HF); SYMBOLS TO IDENTIFY TELECOMMUNICATIONS FACILITIES FOR DEAF AND HARD OF HEARING PEOPLE; DEVELOPMENT AND EVALUATION |
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