IEC 63087-1:2021

Assistive listening devices and systems for active assisted living - Part 1: General

IEC 63087-1:2021 specifies requirements, and the associated methods of measurement, for the electroacoustic performance of personal listening systems.
This document specifies requirements for the provision of assistive listening in audio, video and multimedia systems and equipment. The requirements are of different kinds, because of the diversity of the hardware concerned. Existing IEC standards for methods of measurement are normatively referenced if they exist. Methods of measurement and performance requirements are specified in IEC 63087-2.
This document does not apply to hearing aids. Also excluded are devices entirely worn on or in the ear, which cannot be measured independently.

Dispositifs et systèmes d'aide à l'audition pour l'assistance à l'autonomie à domicile - Partie 1: Généralités

L'IEC 63087-1:2021 définit les exigences ainsi que les méthodes de mesurage associées pour les performances électroacoustiques des systèmes d'écoute personnels.
Le présent document définit les exigences relatives à la mise à disposition d'une aide à l'audition dans les systèmes et équipements audio, vidéo et multimédias. Compte tenu de la diversité des matériels concernés, les exigences sont de différents types. Les normes IEC existantes relatives aux méthodes de mesurage sont citées en référence de manière normative, le cas échéant. Les méthodes de mesurage et les exigences de performance sont définies dans l'IEC 63087-2 .
Le présent document ne s'applique pas aux appareils de correction auditive. Les dispositifs portés entièrement sur ou à l'intérieur de l'oreille, qui ne peuvent pas faire l'objet de mesures indépendantes, sont également exclus.

General Information

• Status: Published
• Publication Date: 25-Aug-2021
• ICS: 13.180 - Ergonomics
• ICS: 33.160.99 - Other audio, video and audiovisual equipment
• Technical Committee: TA 16 - Active Assisted Living (AAL), wearable electronic devices and technologies, accessibility and user interfaces
• Drafting Committee: PT 63087 - TC 100/TA 16/PT 63087
• Current Stage: PPUB - Publication issued
• Start Date: 26-Aug-2021
• Completion Date: 03-Sep-2021

Overview

IEC 63087-1:2021 is an international standard developed by the International Electrotechnical Commission (IEC) focusing on assistive listening devices and systems for active assisted living (AAL). Specifically, it sets the general requirements and methods of measurement for the electroacoustic performance of personal listening systems used to provide assistive listening in various audio, video, and multimedia environments. The standard is designed to support users who experience hearing difficulties but are not users of hearing aids.

Unlike hearing aids, which are regulated as medical devices, personal listening systems covered by IEC 63087-1 are non-medical equipment intended to enhance audio accessibility. Important exclusions include devices completely worn in or on the ear that cannot be measured independently, such as conventional hearing aids.

Key Topics

• Scope of Application: The standard applies to personal listening systems that improve audibility in environments where sound sources are otherwise difficult to hear. These include various multimedia systems and dedicated assistive listening equipment.

• Assistive Listening Devices: Devices covered include personal listeners, audio amplifiers, and dedicated systems designed to relay audio signals clearly and effectively to users, often in the presence of background noise.

• Audio Sources: The document outlines typical audio sources for assistive listening – from televisions and public address systems to multimedia players – with references to IEC standards for measurement methods when available.

• Performance Requirements:

  • Maximum Sound Pressure Level (SPL) control to protect users' hearing.
  • Frequency response standards to ensure clear, natural sound.
  • Limits on distortion and internally generated noise to preserve audio quality.

• Accessibility & Ease of Use:

  • Requirements address both user-controlled and non-user-controlled systems.
  • Emphasis on usability aspects important for individuals with hearing challenges.

• Exclusions: The standard does not cover hearing aids or devices fully worn on/in the ear that are inseparable during measurement.

Applications

IEC 63087-1:2021 facilitates the development and deployment of assistive listening solutions in diverse settings where sound clarity and accessibility impact user experience, including:

• Active Assisted Living: Enabling elderly or hearing-impaired individuals to access audio content effectively for improved autonomy and quality of life.

• Home Entertainment: Enhancing television and multimedia system audio for users not seated near speakers or experiencing hearing difficulties.

• Public and Educational Venues: Improving audio clarity in theaters, transport hubs, lecture halls, and meeting rooms where ambient noise or distance may reduce audibility.

• Communication Support: Assisting in one-to-one conversations or group discussions where assistive listening technology supports comprehension.

By establishing core technical criteria and measurement methods, this standard ensures interoperability, safety, and consistent performance across assistive listening products and systems.

Related Standards

• IEC 63087-2: Specifies detailed methods of measurement and performance criteria for personal listening systems, complementing IEC 63087-1.

• IEC 60118 Series: Defines requirements related to hearing aid performance, focusing on medical device aspects excluded from IEC 63087-1's scope.

• IEC 60601 Series: Covers safety standards for medical electrical equipment including hearing aids.

• ISO and IEC Electropedia: Provides the terminology and definitions used in standardization, ensuring clarity and consistency.

---

Keywords: IEC 63087-1, assistive listening devices, active assisted living, personal listening systems, electroacoustic performance, accessibility, hearing support technology, multimedia audio systems, audio amplifiers, audio accessibility standards.

Standards Content (Sample)

IEC 63087-1 ®
Edition 1.0 2021-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Assistive listening devices and systems for active assisted living –
Part 1: General
Dispositifs et systèmes d'aide à l'audition pour l'assistance à l'autonomie à
domicile –
Partie 1: Généralités
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IEC 63087-1 ®
Edition 1.0 2021-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Assistive listening devices and systems for active assisted living –

Part 1: General
Dispositifs et systèmes d'aide à l'audition pour l'assistance à l'autonomie à

domicile –
Partie 1: Généralités
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.180; 33.160.99 ISBN 978-2-8322-1010-3

– 2 – IEC 63087-1:2021 © IEC 2021
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General . 7
4.1 Assistive listening devices and systems . 7
4.2 Sources of audio for assistive listening . 7
4.3 Dedicated assistive listening systems . 8
5 Requirements in the context of accessibility and ease of use . 8
5.1 Requirements for products and systems under the control of the user . 8
5.1.1 General requirements . 8
5.1.2 Considerations for specific products and systems under the control of
the user . 9
5.2 Requirements for products and systems not under the control of the user . 9
5.2.1 General requirements . 9
5.2.2 Considerations for specific products and systems not under the control
of the user . 10
6 Claims of conformity . 10
Bibliography . 11

Table 1 – Sources of audio for assistive listening . 7
Table 2 – Dedicated assistive listening systems . 8

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ASSISTIVE LISTENING DEVICES AND SYSTEMS
FOR ACTIVE ASSISTED LIVING –
Part 1: General
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 63087-1 has been prepared by Technical Area 16: Active Assisted Living (AAL), wearable
electronic devices and technologies, accessibility and user interfaces of IEC technical
committee 100: Audio, video and multimedia systems and equipment. It is an International
Standard.
The text of this International Standard is based on the following documents:
FDIS Report on voting
100/3601/FDIS 100/3623/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.

– 4 – IEC 63087-1:2021 © IEC 2021
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
INTRODUCTION
AAL (Active Assisted Living) aims to improve the quality of users lives. The user is any person
of any age who uses or benefits from AAL products, services and systems. IEC has created the
Systems Committee AAL which is tasked to develop systems standards taking into account the
following: products, services and systems, safety, security and privacy.
The TC 100 title items, audio, video and multimedia devices and systems provide various
services to users; however, some of users may have difficulties of hearing, viewing and sensing
because of their age or some other reasons. As the number of such users is increasing, IEC
meets these needs with the philosophy of AAL.
The legacy standardization work focuses on providing quality and functions to the ordinary user;
this document specifies the requirement for providing audio quality and functionalities to the
users who have some difficulties with hearing and listening.
Personal listening systems are used to improve the perception and audibility of a range of sound
sources when listening in non-ideal situations. Examples of these include listening to a
television when not seated close to it, following a discussion in a meeting, engaging in a one-
to one conversation, or in other applications where programme material is available such as
transport, theatre or education environments where provision for access enables users to
overcome the presence of competing background noise.
Personal listening systems are widely used by those with normal hearing, but in some instances
by those who have a mild hearing loss, but either do not consider that they need a hearing aid,
or do not meet health-care criteria for hearing aid provision.
Unlike hearing aids, which are classified as medical devices and require an appropriately
trained and competent hearing aid professional to assess an individual's hearing and select and
fit a suitable device, personal listening systems are not provided for by current regulatory
requirements. Requirements for hearing aid performance are specified within the
IEC 60118 series and aspects relating to hearing aid safety are specified in the relevant parts
of the IEC 60601 series.
Changes in regulatory restrictions on the marketing of devices intended to assist hearing lead
to the need to create an electroacoustic performance standard (including the related methods
of measurement) for personal listening systems. This document specifies basic requirement for
personal listening systems, establishes a control on their maximum sound pressure level output
and establishes defines recommended performance in other respects, including frequency
response, distortion and internally generated noise.
This document only makes provision for the electroacoustic performance of personal listening
systems which relate to their input and output. Products which physically resemble modern
hearing aids and which are entirely worn on or in the ear are also excluded from the scope of
this document.
This document is intended to co-ordinate with IEC TC 100 activity on the accessibility of audio
sources.
– 6 – IEC 63087-1:2021 © IEC 2021
ASSISTIVE LISTENING DEVICES AND SYSTEMS
FOR ACTIVE ASSISTED LIVING –
Part 1: General
1 Scope
This part of IEC 63087 specifies requirements, and the associated methods of measurement,
for the electroacoustic performance of personal listening systems.
This document specifies requirements for the provision of assistive listening in audio, video and
multimedia systems and equipment. The requirements are of different kinds, because of the
diversity of the hardware concerned. Existing IEC standards for methods of measurement are
normatively referenced if they exist. Methods of measurement and performance requirements
are specified in IEC 63087-2 .
This document does not apply to hearing aids. Also excluded are devices entirely worn on or in
the ear, which cannot be measured independently.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
product
piece of equipment, possibly comprising several objects that work together, which is typically
acquired by a member of the general public as a single purchase
EXAMPLE 1 A television receiver.
EXAMPLE 2 A radio headphone kit, comprising headphones, transmitter and power supply.
Note 1 to entry: The term 'product' is used to improve clarity, as the term 'equipment' is considered to be rather
'technical'.
___________
Under preparation.
3.2
personal listener
product relaying an acoustic input signal to an acoustic output transducer, for listening purposes
Note 1 to entry: A system will at least comprise a microphone, an electrotechnical amplifier and earphones or
headphones.
Note 2 to entry: Additional items can be included, such as a neck loop for use with hearing aids, or a magnetic pick-
up coil for use with hearing-loop systems.
3.3
assistive listening
listening with assistance of technologies
3.4
hearing aid
portable instrument intended to assist the hearing of persons with impaired hearing, usually
consisting of a microphone, amplifier and earphone or bone vibrator
Note 1 to entry: A hearing aid is a medical device selected and fitted by an appropriately trained and competent
hearing aid professional.
4 General
4.1 Assistive listening devices and systems
Assistive listening systems consist of dedicated listening devices and audio amplifiers.
4.2 Sources of audio for assistive listening
No such list can be exhaustive, but the major sources are listed in Table 1, with the applicable
IEC 'methods of measurement' standard, if it exists, and an applicable performance standard,
if it exists. The list is intended to be updated as new sources qualify for inclusion.
Table 1 – Sources of audio for assistive listening
Product or system 'Methods of measurement' Applicable 'interoperability
a
standard
standard'
Radio receiver IEC 60315-4 IEC 61938
Television receiver IEC 60107-1 and IEC 60107-2 IEC 61938
Video player IEC 60268-3 IEC 61938
Personal music player IEC 60268-3 IEC 61938
Smart phone and its expansion IEC 61606-3 IEC 61938
system
PC, tablet IEC 61606-3 IEC 61938
Home audio system IEC 60268-3 IEC 61938
Car audio system IEC 60268-3 IEC 61938
Sound reinforcement system IEC 60268-3 IEC 61938
Microphone IEC 60268-4 IEC 61938
Intercommunication system IEC 60268-3 IEC 61938
Audio over IP system EBU Tech 3326
a
IEC 61938 gives recommended electrical interface characteristics for the connection of assistive listening
devices as accessories.
– 8 – IEC 63087-1:2021 © IEC 2021
4.3 Dedicated assistive listening systems
Table 2 gives a non-exclusive list of such systems, but the list is intended to be updated as new
systems qualify for inclusion.
Table 2 – Dedicated assistive listening systems
Type of system Applicable standards Notes
Hearing-loop system IEC 60118-4, IEC 62489-1, Studied by IEC TC29. Include
IEC TR 63079 methods of measurement and
performance requirements.
Personal listener IEC 63087-2 Standard to include methods of
measurement and performance
requirements. Product includes
microphone, amplifier and
earpieces. Can include input from
any system type, and or output to
telecoil or other method as
applicable.
Infra-red system This was a TC 100 standard, but
IEC 60914
not dedicated to assistive listening.
Includes infra-red headphones.
Radio system (VHF) Includes radio headphones.
Wireless system (2,4 GHz and Includes wireless headphones.
similar)
Audio vibration system  ‘Body sonic’ is an example.
Sound field system IEC 62777 With directional loudspeaker or
parametric sound system.
5 Requirements in the context of accessibility and ease of use
5.1 Requirements for products and systems under the control of the user
5.1.1 General requirements
These requirements apply generally, but one or more might be inapplicable in some cases. The
manufacturer shall be prepared to justify any deviation.
• Designs shall take into account that users might have impaired vision and manual dexterity,
in addition to hearing impairment.
• Rotary controls are more suitable than push-buttons or touch controls with a visual display.
• Voice control; voice or sound information or instruction.
• Controls shall be labelled in words, not only symbols; overlays or adhesive labels can be
provided for labelling in different languages.
• Alpha-numeric characters shall be at least 3 mm high (x-height) and strongly contrast with
their background.
NOTE Black text in a sans-serif font on any light-coloured background can usually be read easily.
• Controls of functionality shall be easy and less complexity.
___________
This document was withdrawn.
5.1.2 Considerations for specific products and systems under the control of the user
5.1.2.1 Radio receivers
Radio receivers shall provide, in addition to any other audio signal format, a single channel of
acceptable 'mono' composition, either digital or analogue, suitable for connection to an assistive
listening accessory.
NOTE A two-channel 'stereo' signal might be provided as well, but the demand for stereo in the hearing-impaired
community is low, because many have very different impairments in the two ears.
5.1.2.2 Television receivers
Television receivers shall provide, in addition to any other audio signal format, a single channel
of acceptable 'mono' composition and support a dedicated audio channel for narration, either
digital or analogue, suitable for connection to an assistive listening accessory. A dedicated
channel for narration or commentary is available in some multichannel audio systems; it is
applicable to a part of the mono composition.
NOTE A two-channel 'stereo' signal might be provided as well, but the demand for stereo in the hearing-impaired
community is low, because many have very different impairments in the two ears.
5.1.2.3 Video players
It is the same as television receivers, in addition slower audio playback capability in accordance
with slow-motion video playback is useful functionality.
5.1.2.4 Personal music player
Personal music player shall provide a single channel of acceptable 'mono' composition, tone
control functionality and dedicated loudness control functionality.
5.1.2.5 Smart phone and its expansion system
Smart phone and its expansion system shall provide a single channel of acceptable 'mono'
composition, tone control functionality and dedicated loudness control functionality.
5.1.2.6 Home audio system
Home audio system shall provide a single channel of acceptable 'mono' composition, tone
control functionality and dedicated loudness control functionality. Multichannel audio system
should provide a dedicated channel for narration or commentary.
5.1.2.7 Intercommunication system
Intercommunication system shall provide tone control functionality and dedicated loudness
control functionality.
5.2 Requirements for products and systems not under the control of the user
5.2.1 General requirements
It is essential that staff responsible for such products and systems can easily check whether
the product or system is in operation, because field experience over many years shows that
there is a major failing in this respect. It is preferable that users can also make this check,
without having to approach staff.

– 10 – IEC 63087-1:2021 © IEC 2021
5.2.2 Considerations for specific products and systems not under the control of the
user
5.2.2.1 Hearing-loop systems
IEC TR 63079 includes recommendations for monitoring the operation of hearing-loop systems,
to ensure that they are available to users.
5.2.2.2 Infra-red and radio systems
In the absence of specific standards, the recommendations of IEC TR 63079 on monitoring
should be followed insofar as they are applicable.
6 Claims of conformity
A manufacturer claiming that a product or system conforms to this document shall make easily
available to the general public a document showing how conformity is achieved.

Bibliography
IEC 60107-1:1997, Methods of measurement on receivers for television broadcast
transmissions – Part 1: General considerations – Measurements at radio and video frequencies
IEC 60107-2, Methods of measurement on receivers for television broadcast transmissions –
Part 2: Audio channels – General methods and methods for monophonic channels
IEC 60118 (all parts), Electroacoustics – Hearing aids
IEC 60118-4:2014, Electroacoustics – Hearing aids – Part 4: Induction-loop systems for hearing
aid purposes – System performance requirements
IEC 60118-4:2014/AMD1:2017
IEC 60268-3, Sound system equipment – Part 3: Amplifiers
IEC 60268-4, Sound system equipment – Part 4: Microphones
IEC 60315-4, Methods of measurement on radio receivers for various classes of emission –
Part 4: Receivers for frequency-modulated sound broadcasting emissions
IEC 60601 (all parts), Medical electrical equipment
IEC 61606-3:2008, Audio and audiovis
...