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Alapadatok
Dokumentumazonosító 164422
Hivatkozási szám MSZ EN ISO 24504:2017
Cím Ergonómia. Hozzáférhető kialakítás. Szóbeli bejelentések hangnyomásszintjei termékekhez és kihangosító rendszerekhez (ISO 24504:2014)
Angol cím Ergonomics. Accessible design. Sound pressure levels of spoken announcements for products and public address systems (ISO 24504:2014)
ICS 13.180 Ergonómia
A szabvány nyelve angol
Alkalmazási terület 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 applicable 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 standard 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 applicable 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 speech sound source, such as in ear speakers specified in IEC 60268-7. This International Standard considers only the audibility of speech and not the process of speech understanding. This International Standard does not specify the sound pressure levels of spoken announcements presented in emergency situations such as signals for fire alarms, gas leakage, and crime prevention; those are covered in ISO 7240-16 and ISO 7240-19. This International Standard does not specify the sound pressure levels of spoken announcements in automobiles; those are covered in ISO 15006. NOTE 1 A spoken announcement presented in a repetitive manner from a product such as electronic home appliance is presumed to be heard as an auditory sign but not as a message and is therefore usable with a lower sound pressure level of the spoken announcement than this International Standard specifies. NOTE 2 It is known that the word recognition performance of native speakers of the language of the announcement is better than that of non-native speakers.
Az érvényesség kezdete 2017-01-01
A visszavonás napja

További adatok
Forrás idt EN ISO 24504:2016; idt ISO 24504:2014
Helyettesített szabvány(ok)
Helyettesítő szabvány(ok)
Módosítás(ok)
(külön szabványként)
SZK-közlemények
Kapcsolódó európai jogszabály
Műszaki Bizottság MSZT/MCS 209

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