1、December 2016 English price group 14No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 13.180!%“2595794www.din.deDIN E
2、N ISO 24504Ergonomics Accessible design Sound pressure levels of spoken announcements for products and public address systems (ISO 24504:2014);English version EN ISO 24504:2016,English translation of DIN EN ISO 24504:2016-12Ergonomie Barrierefreie Gestaltung Schalldruckpegel von gesprochenen Ansagen
3、 fr Produkte und ffentliche Lautsprecheranlagen (ISO 24504:2014);Englische Fassung EN ISO 24504:2016,Englische bersetzung von DIN EN ISO 24504:2016-12Ergonomie Conception accessible Niveaux de pression acoustique des annonces vocales pour les produits et systmes de sonorisation (ISO 24504:2014);Vers
4、ion anglaise EN ISO 24504:2016,Traduction anglaise de DIN EN ISO 24504:2016-12www.beuth.deDocument comprises 30 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.11.16 DIN EN ISO 24504:2016-12 2 A comma is used as the decimal mar
5、ker. National foreword The text of ISO 24504:2014 has been prepared by Technical Committee ISO/TC 159 “Ergonomics”, Subcommittee SC 5 “Ergonomics of the physical environment” and has been taken over as EN ISO 24504:2016 by Technical Committee CEN/TC 122 “Ergonomics” (Secretariat: DIN, Germany). The
6、responsible German body involved in its preparation was DIN-Normenausschuss Ergonomie (DIN Standards Committee Ergonomics), Joint Committee NA 023-00-02 GA Gemeinschaftsarbeitsausschuss NAErg/NIA/DKE: Grundlagen zur barrierefreien Gestaltung/Accessibility. In addition to sound pressure levels of spo
7、ken announcements, the acoustic quality of a space also has a significant influence on the ability to understand spoken language. DIN 18041 Acoustic quality in rooms Specifications and instructions for the room acoustic design takes into account the needs of persons with impaired hearing and specifi
8、es the acoustic requirements, planning directives and required measures to ensure the acoustic quality of rooms. The DIN Standards corresponding to the International Standards referred to in this document are as follows: IEC 60268-7 DIN EN 60268-7 IEC 60268-16 DIN EN 60268-16 IEC 61260 DIN EN 61260
9、IEC 61672-1 DIN EN 61672-1 ISO 389-1 DIN EN ISO 389-1 ISO 3382-2 DIN EN ISO 3382-2 ISO 7029 DIN EN ISO 7029 ISO 8253-1 DIN EN ISO 8253-1 ISO 9921 DIN EN ISO 9921 ISO 15006 DIN EN ISO 15006 ISO 18233 DIN EN ISO 18233 ISO/IEC Guide 71 DIN-Fachbericht 131 ISO/TR 22411 DIN CEN ISO/TR 22411 DIN EN ISO 24
10、504:2016-12 3 National Annex NA (informative) Bibliography DIN 18041, Acoustic quality in rooms Specifications and instructions for the room acoustic design DIN-Fachbericht 131, Guidelines for standards developers to address the needs of older persons and persons with disabilities DIN EN 60268-7, So
11、und system equipment Part 7: Headphones and earphones DIN EN 60268-16, Sound system equipment Part 16: Objective rating of speech intelligibility by speech transmission index DIN EN 61260, Electroacoustics Octave-band and fractional-octave-band filters DIN EN 61672-1, Electroacoustics Sound level me
12、ters Part -1: Specifications DIN EN ISO 389-1, Acoustics Reference zero for the calibration of audiometric equipment Part 1: Reference equivalent treshold sound pressure levels for pure tones and supra-aural earphones DIN EN ISO 3382-2, Acoustics Measurement of room acoustic parameters Part 2: Rever
13、beration time in ordinary rooms DIN EN ISO 7029, Acoustics Statistical distribution of hearing thresholds related to age and gender DIN EN ISO 8253-1, Acoustics Audiometric test methods Part 1: Pure-tone air and bone conduction audiometry DIN EN ISO 9921, Ergonomics Assessment of speech communicatio
14、n DIN EN ISO 15006, Road vehicles Ergonomic aspects of transport information and control systems Specifications for in-vehicle auditory presentation DIN EN ISO 18233, Acoustics Application of new measurement methods in building and room acoustics DIN CEN ISO/TR 22411, Ergonomics data and guidelines
15、for the application of ISO/IEC Guide 71 to products and services to address the needs of older persons and persons with disabilities DIN EN ISO 24504:2016-12 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 24504 June 2016 ICS 13.180 English Version Ergonom
16、ics - Accessible design - Sound pressure levels of spoken announcements for products and public address systems (ISO 24504:2014) Ergonomie - Conception accessible - Niveaux de pression acoustique des annonces vocales pour les produits et systmes de sonorisation(ISO 24504:2014) Ergonomie - Barrierefr
17、eie Gestaltung - Schalldruckpegel von gesprochenen Ansagen fr Produkte und ffentliche Lautsprecheranlagen(ISO 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 thi
18、s 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 v
19、ersions (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 Austr
20、ia, 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
21、, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR 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 worldwide for CEN n
22、ational Members. Ref. No. EN ISO 24504:2016 EContents PageEuropean foreword 3Introduction 51 Scope . 62 Normative references 63 Terms and definitions . 74 Symbols 95 Range of sound pressure level of spoken announcements . 95.1 General . 95.2 Criteria to determine the speech level. 105.3 Relevant fac
23、tors related to speech perception . 105.4 A-weighted sound pressure level method to determine the speech level 115.5 Simplified STI method to determine the minimum speech level . 12Annex A (normative) Method for measuring the sound pressure level of spoken announcements and ambient noise 13Annex B (
24、informative) Effects of age-related hearing loss on word recognition .15Annex C (informative) Examples of measurement condition and result records .21Annex D (informative) STI method to determine minimum speech level 23Bibliography .26Foreword 4DIN EN ISO 24504:2016-12 EN ISO 24504:2016 (E) 2 Europe
25、an 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. Thi
26、s 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
27、 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 implemen
28、t 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, Sl
29、ovakia, 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. DIN EN ISO 24504:2016-12 EN ISO 24504:2016 (E) 3 ForewordISO (the International Organization for Standard
30、ization) 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
31、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
32、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
33、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
34、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
35、 meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC
36、 159, Ergonomics, Subcommittee SC 5, Ergonomics of the physical environment.DIN EN ISO 24504:2016-12 EN ISO 24504:2016 (E) 4 IntroductionToday, people conduct their daily lives along with spoken announcements from various products such as home electrical appliances, information and telecommunication
37、 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 ofte
38、n 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 a
39、nnouncements 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
40、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 condition
41、s 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.T
42、his International Standard adopts the principles of accessible design from ISO/IEC Guide 71, which are amplified in ISO/TR 22411.DIN EN ISO 24504:2016-12 EN ISO 24504:2016 (E) 5 1 ScopeThis International Standard specifies methods to determine an appropriate sound pressure level range for spoken ann
43、ouncements 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 spokenspeech levels that are spe
44、cified 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
45、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 a
46、pplicable to products providing private information such as automated teller machines in public spaces.This International Standard 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 standa
47、rd frequency weighting A of ambient noise does not exceed 80 dB. This International Standard 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. This International Standard is appl
48、icable for both recorded voice and synthetic speech announcements.This International Standard does not specify sound pressure levels of spoken announcements for systems with automatic sound pressure level control to compensate for fluctuating ambient noise levels. This International Standard is not applicable to spoken announcements heard through headphones or earphones, or to spoken announcements heard with the ear close to the sp
