Акустика. Аудиометрические методы испытаний. Часть 2. Аудиометрия звукового поля с чистым тоном и узкополосными испытательными сигналами
Название (англ.):
Acoustics; audiometric test methods; part 2: sound field audiometry with pure tone and narrow-band test signals
Описание (англ.):
Specifies relevant test signal characteristics, requirements for free, diffuse and quasi-free sound fields, and procedures for sound field audiometry using pure tones, frequency modulated tones or other narrow-band test signals presented by one or more loudspeakers, primarily for the purpose of determining hearing threshold levels in the frequency range from 125 Hz to 12 500 Hz. The purpose is to ensure that tests of hearing give ashigh a degree of accuracy and reproducibility as possible.
Дата регистрации:
01.12.92
Дата введения:
01.11.92
Код КГС:
Т34
Код ОКСТУ:
0080
Код ОКС(МКС):
13.140
Код ОКП:
0080
Нормативные ссылки:
BS 7636(1993/BSI), EQV*NF S31-083-2(1993/AFNOR), EQV*NF ISO 8253-2(1993/AFNOR), EQV*DIN ISO 8253-2-1994, EQV*EN ISO 8253-2-1998, EQV*BS EN ISO 8253-2(1993/BSI), EQV IEC 60225-1966*IEC 60581-7-1986*IEC 60645-1-1992*IEC 60651-1979*ISO 226-1987*ISO 266-1975*ISO 8253-1-1989
Ключевые слова:
ACOUSTIC PROPERTIES AND PHENOMENA ACOUSTICS AMPLIFICATION AUDIOMETRY AUDITORY THRESHOLD CLAY CLOSED TEST ROOMS DEFINITIONS HEARING AIDS INVESTIGATIONS LEVELS LISTENING TESTS LOUDSPEAKERS MEASUREMENTS OF THRESHOLD OF AUDIBILITY NOISE TEST SOUND FIELDS SPECIFICATION (APPROVAL) SPECIFICATIONS TEST SIGNALS TESTING TESTING CONDITIONS TESTS ACOUSTIC PROPERTIES