EN ISO 24504:2016
(Main)Ergonomics - Accessible design - Sound pressure levels of spoken announcements for products and public address systems (ISO 24504:2014)
Ergonomics - Accessible design - Sound pressure levels of spoken announcements for products and public address systems (ISO 24504:2014)
ISO 24504:2014 specifies methods to determine an appropriate sound pressure level range for spoken announcements in environments where ambient noise is less than 80 dB. The specified methods follow the concepts of ISO/IEC Guide 71 and includes consideration of older persons with decreased hearing ability to determine sound pressure levels of spoken announcements. The spoken speech levels specified are for products and public-address systems.
ISO 24504:2014 is applicable when a loudspeaker producing a spoken announcement is located a short distance from the user in an environment where the sound pressure level with a standard frequency weighting A of ambient noise does not exceed 80 dB. It is applicable to spoken announcements that are audible to persons with normal hearing for their age when presented by a target product under quiet and anechoic conditions, and for both recorded voice and synthetic speech announcements.
It is not applicable to products providing private information such as automated teller machines in public spaces, nor to spoken announcements heard through headphones or earphones, or with the ear close to the speech sound source such as ear speakers. It does not specify the sound pressure levels of spoken announcements for systems with automatic sound pressure level control to compensate for fluctuating ambient noise levels, nor those presented in emergency situations such as signals for fire alarms, gas leakage and crime prevention (covered in ISO 7240‑16 and ISO 7240‑19), or in automobiles (covered in ISO 15006). It considers only the audibility of speech and not the process of speech understanding.
Ergonomie - Barrierefreie Gestaltung - Schalldruckpegel von gesprochenen Ansagen für Produkte und öffentliche Lautsprecheranlagen (ISO 24504:2014)
Diese Internationale Norm legt Verfahren zur Bestimmung eines angemessenen Schalldruckpegelbereichs von gesprochenen Ansagen in Umgebungen fest, in denen das Umgebungsgeräusch weniger als 80 dB beträgt. Die festgelegten Verfahren richten sich nach den Konzepten von ISO/IEC Guide 71 und schließen die Berücksichtigung älterer Menschen mit vermindertem Hörvermögen bei der Bestimmung von Schalldruck¬pegelnN1) für gesprochene Ansagen ein. Die in dieser Norm festgelegten gesprochen Sprachpegel gelten für Produkte und Beschallungsanlagen. Zur Verbesserung der Barrierefreiheit und Gebrauchstauglichkeit von Produkten müssen gesprochene Ansagen nicht nur hörbar sein, sondern auch bei angenehmen Sprachpegeln dargeboten werden.
Die betrachteten Produkte, die gesprochene Ansagen darbieten, sind Konsumgüter, wie z. B. elektronische Haushaltsgeräte, Dienstleister für Informations und Kommunikationstechnologie und Produkte, die Dienst¬leistungen für allgemeine Anwender in öffentlichen Einrichtungen im Innen und Außenbereich, wie z. B. Bahnhöfen, Flughäfen, Besprechungsräumen, Freizeitparks und (Fach )Ausstellungen, bereitstellen.
Diese Internationale Norm gilt nicht für Produkte, die persönliche Angaben bereitstellen, wie z. B. Geld-automaten im öffentlichen Bereich.
Diese Internationale Norm ist anwendbar, wenn sich ein Lautsprecher, der eine gesprochen Ansage erzeugt, in geringer Entfernung vom Anwender in einer Umgebung befindet, in der der Schalldruckpegel des Umgebungsgeräuschs mit einer genormten Frequenzbewertung A 80 dB nicht überschreitet. Diese Internationale Norm gilt für gesprochene Ansagen, die für Menschen mit für ihr Alter normalem Hörvermögen hörbar sind, wenn sie durch ein betrachtetes Produkt unter geräuscharmen und reflexionsfreien Bedingungen dargeboten werden. Diese Internationale Norm gilt sowohl für Ansagen mit aufgezeichneter Stimme als auch Ansagen mit synthetischer Sprache.
Diese Internationale Norm legt keine Schalldruckpegel von gesprochenen Ansagen für Systeme mit automatischer Regelung des Schalldruckpegels zum Ausgleich von schwankenden Umgebungsgeräusch-pegeln fest. Diese Internationale Norm gilt nicht für gesprochene Ansagen, die über Kopfhörer oder Ohrhörer gehört werden bzw. für gesprochene Ansagen, die mit dem Ohr gehört werden, das sich in der Nähe der Sprachschallquelle befindet, wie z. B. bei in IEC 60268 7 festgelegten Ohrhörer-Sprech-Garnituren. Diese Internationale Norm berücksichtigt nur die Hörbarkeit von Sprache und nicht den Prozess des Verstehens der Sprache.
Diese Internationale Norm legt keine Schalldruckpegel von gesprochenen Ansagen fest, die in Notfall-situationen dargeboten werden, wie z. B. Signale für Feueralarm, Gasaustritt und Kriminalprävention; diese werden in ISO 7240 16 und ISO 7240 19 behandelt. Diese Internationale Norm legt keine Schalldruckpegel von gesprochenen Ansagen in Kraftfahrzeugen fest; diese werden in ISO 15006 behandelt.
ANMERKUNG 1 Bei einer gesprochenen Ansage, die wiederholt von einem Produkt, wie z. B. einem elektronischen Haushaltsgerät, dargeboten wird, wird angenommen, dass sie als akustisches Signal, jedoch nicht als Mitteilung gehört wird und deshalb mit einem niedrigeren Schalldruckpegel der gesprochenen Ansage als in dieser Internationalen Norm festgelegt einsetzbar ist.
ANMERKUNG 2 Es ist bekannt, dass die Worterkennungsleistung von Muttersprachlern der Sprache der Ansage besser ist als von nichtmuttersprachlichen Sprechern.
Ergonomie - Conception accessible - Niveaux de pression acoustique des annonces vocales pour les produits et systèmes de sonorisation (ISO 24504:2014)
L'ISO 24504:2014 spécifie des méthodes permettant de déterminer une plage appropriée de niveaux de pression acoustique pour les annonces vocales dans des environnements où le bruit ambiant est inférieur à 80 dB. Les méthodes spécifiées suivent les concepts de l'Guide ISO/IEC 71 et tiennent compte des personnes âgées ayant une capacité auditive diminuée pour déterminer les niveaux de pression acoustique des annonces vocales. Les niveaux de la parole qui sont spécifiés dans la présente Norme internationale concernent les produits et systèmes de sonorisation. Pour améliorer l'accessibilité et la facilité d'utilisation des produits, les annonces vocales doivent non seulement être audibles, mais également être diffusées à des niveaux confortables de la parole.
Les produits ciblés qui diffusent des annonces vocales sont des produits de consommation courante tels que les appareils électroménagers, les services des technologies de l'information et de la communication et les produits fournissant des services aux utilisateurs d'installations publiques intérieures et extérieures telles que les gares, les aéroports, les salles de réunion, les parcs d'attraction et les foires.
L'ISO 24504:2014 ne s'applique pas aux produits fournissant des informations privées telles que les guichets automatiques dans les espaces publics.
L'ISO 24504:2014 s'applique lorsqu'un haut-parleur diffusant une annonce vocale est situé à faible distance de l'utilisateur dans un environnement où le niveau de pression acoustique du bruit ambiant, avec une pondération A normalisée en fréquence, ne dépasse pas 80 dB. L'ISO 24504:2014 s'applique aux annonces vocales qui sont audibles pour des personnes ayant une audition normale pour leur âge, lorsqu'elles sont diffusées par un produit cible dans des conditions calmes et anéchoïques. L'ISO 24504:2014 s'applique à la fois aux annonces à voix enregistrée et à voix de synthèse.
L'ISO 24504:2014 ne spécifie pas les niveaux de pression acoustique des annonces vocales pour des systèmes équipés d'une régulation automatique du niveau de pression acoustique pour compenser des niveaux de bruit ambiant fluctuants. L'ISO 24504:2014 ne s'applique pas aux annonces vocales écoutées par le biais de casques ou d'écouteurs, ni aux annonces vocales écoutées avec l'oreille proche de la source sonore, comme dans les écouteurs intra-auriculaires spécifiés dans l'IEC 60268‑7. L'ISO 24504:2014 considère uniquement l'audibilité de la parole et non le processus de compréhension de la parole.
L'ISO 24504:2014 ne spécifie pas les niveaux de pression acoustique des annonces vocales diffusées dans des situations d'urgence, telles que les signalisations d'alarme incendie, de fuite de gaz et de prévention de la malveillance; celles-ci sont traitées dans l'ISO 7240‑16 et l'ISO 7240‑19. L'ISO 24504:2014 ne spécifie pas les niveaux de pression acoustique des annonces vocales dans les automobiles; celles-ci sont traitées dans l'ISO 15006.
Ergonomija - Dostopno načrtovanje - Ravni zvočnega tlaka pri govorjenih objavah za proizvode in sisteme javnega obveščanja (ISO 24504:2014)
Ta mednarodni standard določa metode za določanje primernega razpona zvočnega tlaka pri govorjenih objavah v okoljih, kjer je okoljski hrup manjši od 80 dB. Navedene metode upoštevajo načela vodila ISO/IEC 71, pri čemer za določanje ravni zvočnega tlaka pri govorjenih objavah upoštevajo tudi starejše osebe s poslabšanim sluhom. Ravni govora, ki so določene v tem mednarodnem standardu, se uporabljajo za proizvode in sisteme javnega obveščanja. Za izboljšanje dostopnosti in uporabnosti proizvodov, morajo biti govorjene objave slišne in hkrati predvajanje pri udobnih ravneh govora. Ciljni proizvodi, ki predvajajo govorjene objave, so potrošniški proizvodi, npr. elektronski gospodinjski aparati, storitve informacijske in komunikacijske tehnologije in izdelki, ki zagotavljajo storitve za splošne uporabnike v notranjosti in zunanjosti javnih objektov, kot so železniške postaje, letališča, sejne sobe, zabaviščni parki in sejmi. Ta mednarodni standard se ne uporablja za proizvode, ki podajajo zasebne podatke, kot so bankomati na javnih površinah. Ta mednarodni standard se uporablja, ko se zvočnik, ki predvaja govorjeno objavo, nahaja blizu uporabnika v okolju, kjer raven zvočnega tlaka s standardnim frekvenčnim vrednotenjem A okoljskega hrupa ne presega 80 dB. Ta mednarodni standard se uporablja za govorjene objave, ki so slišne osebam z običajnim sluhom za svojo starost, ko stopijo v stik s ciljnim proizvodom v tihih pogojih brez odmevanja. Ta mednarodni standard se uporablja za objave s posnetim zvokom in sintetiziranim govorom. Ta mednarodni standard ne določa ravni zvočnega tlaka govorjenih objav za sisteme s samodejnim uravnavanjem ravni zvočnega tlaka, ki omogoča prilagajanje glasnosti v primeru neenakomernih ravni okoljskega hrupa. Ta mednarodni standard se ne uporablja za govorjene objave, ki so slišne prek slušalk, ali govorjene objave, ki so slišne, ko je vir zvoka v bližini ušesa, kot v primeru ušesnih zvočnikov, ki so opredeljeni v standardu IEC 60268 7. Ta mednarodni standard obravnava samo slišnost govora in ne postopka razumevanja govora. Ta mednarodni standard ne določa ravni zvočnega tlaka govorjenih objav, ki se predvajajo v sili, kot so signali za požarne alarme, puščanje plina in preprečevanje zločinov – te so zajete v standardih ISO 7240 16 in ISO 7240 19. Ta mednarodni standard ne določa ravni zvočnega tlaka govorjenih objav v avtomobilih – te so zajete v standardu ISO 15006.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2017
(UJRQRPLMD'RVWRSQRQDþUWRYDQMH5DYQL]YRþQHJDWODNDSULJRYRUMHQLKREMDYDK
]DSURL]YRGHLQVLVWHPHMDYQHJDREYHãþDQMD ,62
Ergonomics - Accessible design - Sound pressure levels of spoken announcements for
products and public address systems (ISO 24504:2014)
Ergonomie - Barrierefreie Gestaltung - Schalldruckpegel gesprochener Ansagen für
Produkte und öffentliche Lautsprecheranlagen (ISO 24504:2014)
Ergonomie - Conception accessible - Niveaux de pression acoustique des annonces
vocales pour les produits et systèmes de sonorisation (ISO 24504:2014)
Ta slovenski standard je istoveten z: EN ISO 24504:2016
ICS:
13.180 Ergonomija Ergonomics
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 24504
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2016
EUROPÄISCHE NORM
ICS 13.180
English Version
Ergonomics - Accessible design - Sound pressure levels of
spoken announcements for products and public address
systems (ISO 24504:2014)
Ergonomie - Conception accessible - Niveaux de Ergonomie - Barrierefreie Gestaltung -
pression acoustique des annonces vocales pour les Schalldruckpegel von gesprochenen Ansagen für
produits et systèmes de sonorisation (ISO Produkte und öffentliche Lautsprecheranlagen (ISO
24504:2014) 24504:2014)
This European Standard was approved by CEN on 27 May 2016.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 24504:2016 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
The text of ISO 24504:2014 has been prepared by Technical Committee ISO/TC 159 “Ergonomics” of the
International Organization for Standardization (ISO) and has been taken over as EN ISO 24504:2016 by
Technical Committee CEN/TC 122 “Ergonomics” the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by December 2016, and conflicting national standards
shall be withdrawn at the latest by December 2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 24504:2014 has been approved by CEN as EN ISO 24504:2016 without any modification.
INTERNATIONAL ISO
STANDARD 24504
First edition
2014-08-01
Ergonomics — Accessible design
— Sound pressure levels of spoken
announcements for products and
public address systems
Ergonomie — Conception accessible — Niveaux de pression
acoustique des annonces vocales pour les produits et systèmes de
sonorisation
Reference number
ISO 24504:2014(E)
©
ISO 2014
ISO 24504:2014(E)
© ISO 2014
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved
ISO 24504:2014(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols . 4
5 Range of sound pressure level of spoken announcements . 4
5.1 General . 4
5.2 Criteria to determine the speech level. 5
5.3 Relevant factors related to speech perception . 5
5.4 A-weighted sound pressure level method to determine the speech level . 6
5.5 Simplified STI method to determine the minimum speech level . 7
Annex A (normative) Method for measuring the sound pressure level of spoken announcements
and ambient noise . 8
Annex B (informative) Effects of age-related hearing loss on word recognition .10
Annex C (informative) Examples of measurement condition and result records .16
Annex D (informative) STI method to determine minimum speech level .18
Bibliography .21
ISO 24504:2014(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 159, Ergonomics, Subcommittee SC 5, Ergonomics
of the physical environment.
iv © ISO 2014 – All rights reserved
ISO 24504:2014(E)
Introduction
Today, people conduct their daily lives along with spoken announcements from various products
such as home electrical appliances, information and telecommunication products, office-automation
equipment, heating equipment, toys, sanitary equipment, and health care products. Some products
use spoken announcements to provide instructions in indoor and outdoor public areas such as ticket
vending machines, elevators, and escalators. Public address systems are often installed to provide
spoken announcements. Such announcements can be indistinct to listeners because of hearing loss that
can occur with ageing or because of ambient noise in the surroundings.
This International Standard specifies methods for determining an appropriate sound level range of
spoken announcements so that all listeners, including people with age-related hearing loss, can hear
them properly against ambient noises. This sound level range specification was determined based on
results of experiments in which people of different ages participated. Spoken announcements for which
sound pressure levels are within the range specified in this International Standard are expected to be
audible and comfortably loud for most users in the presence of ambient noise.
This International Standard is intended to be applied as necessary to products depending on the
product type and its conditions of use. It does not apply to spoken announcements used for evacuation
or emergency purposes.
ISO 9921 specifies recommended levels of speech-communication quality necessary for conveying
comprehensive messages in different applications. Therefore, ISO 9921 differs from this International
Standard.
This International Standard adopts the principles of accessible design from ISO/IEC Guide 71, which are
amplified in ISO/TR 22411.
INTERNATIONAL STANDARD ISO 24504:2014(E)
Ergonomics — Accessible design — Sound pressure levels
of spoken announcements for products and public address
systems
1 Scope
This International Standard specifies methods to determine an appropriate sound pressure level range
for spoken announcements in environments where ambient noise is less than 80 dB. The specified
methods follow the concepts of ISO/IEC Guide 71 and includes consideration of older persons with
decreased hearing ability to determine sound pressure levels of spoken announcements. The spoken
speech levels that are specified in this International Standard are for products and public-address
systems. To improve the accessibility and usability of products, spoken announcements must not only
be audible but also presented at comfortable speech levels.
The target products that present spoken announcements are consumer products such as electronic home
appliances, information and communication technology services, and products providing services for
general users in public facilities indoors and outdoors such as train stations, airports, meeting rooms,
amusement parks, and fairs.
This International Standard is not ap
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.