BS EN ISO 8253-2-2009 声学.听力试验方法.纯音和窄带试验信号声场测听方法

标准号：BS EN ISO 8253-2-2009
中文标准名称：声学.听力试验方法.纯音和窄带试验信号声场测听方法
英文标准名称：Acoustics - Audiometric test methods - Sound field audiometry with pure-tone and narrow-band test signals
标准类型：A42
发布日期：2010/2/28 12:00:00
实施日期：2010/2/28 12:00:00
中国标准分类号：A42
国际标准分类号：13.140; 17.140.50
引用标准：ISO 226;ISO 266;ISO 389-7;ISO 8253-1;IEC 60581-7-1986;IEC 60645-1;IEC 61672-1
适用范围：This part of ISO 8253 specifies relevant test signal characteristics, requirements for free, diffuse, andquasi-free sound fields, and procedures for sound field audiometry using pure tones, frequency-modulatedtones or other narrow-band test signals presented by means of one or more loudspeakers. The primarypurpose is the determination of hearing threshold levels in the frequency range 125 Hz to 8 000 Hz, but thisrange can be extended to 20 Hz to 16 000 Hz.This part of ISO 8253 does not include specifications for the use of hand-held loudspeakers. Speech as a testsignal is not covered.The purpose of this part of ISO 8253 is to ensure that tests of hearing, using sound field audiometry, give ashigh a degree of accuracy and reproducibility as possible.