GB/T 20242-2006 声学 助听器真耳声特性的测量方法

ICS17.140

A59霭黔

中华人民共和国国家标准

GB/T20242一2006/15012124:2001

声学助听器真耳声特性的测量方法

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(15012124:2001，IDT)

2006一05一08发布2006一11一01实施

中华人民共和国国家质量监督检验检疫总局

发布

中国国家标准化管理委员会

GB/T20242一2006/15012124:2001

目次

前言········································，············································，···························……皿

引言····，··············································，·····························································……W

1范围··········，··································································································……1

2规范性引用文件······································，···································，···.·……，，1

3术语和定义···········，·························································································……1

4限制测量结果准确度的因素·······················································……，，，4

5测试环境·········································································································……6

5.1环境条件············································，·，·········，····································，········……6

5.2背景噪声············································，·························································……6

5.3测试室的声学性能······························，···········································……，…6

5.4声场特性···，················，·················································································……6

6受试者的准备········，········，····································································.·……7

6.1耳镜检查···，···················································，································，·，·········……7

6.2受试者的位置·······························································，·，·····……，.，，.·...·..·····.·……7

6.3对受试者的指令······················，，············.·.·············.·……，……，.……了二7

7测量方法和步骤·····································································……，，············……，..…7

7.1设备··························，················································，·········，····················……7

7.2校准·········，··································································································……7

7.3均衡方法··，··················································，················，·····················，······……7

7.4测试信号·······························，········································，·，···························……7

7.5受试者的就位·············，····················································，···……，，··············...……8

7.6测试人员的就位·····················，············································……，，·.·····.·……8

7.7声场参考点的选择··················，········，，········································...……，.，……8

7.8测量点的选择············，·······························································.···········，····...……8

7.9助听器的佩带和藕合····，·················································……，，，.·······……，8

7.01真耳无助听响应(REUR)曲线··········，········································.·……，..……，，，二8

7.11真耳无助听增益(REUG)曲线·············································……，，····.··……8

7.21真耳堵塞响应(REOR)曲线······························，········································……9

7.31真耳堵塞增益(REOG)曲线·······················································.·……，，9

7.41真耳助听响应(REAR)曲线···，································……，，……，.，……9

7.51真耳助听增益(REAG)曲线·······································…·…，……，..……，.，……01

7.61真耳插人增益(REIG)曲线·····················································.·...···········.·……01

8资料记录·······································································································……01

附录A(资料性附录)探管传声器拾声孔定位到测量点的方法·······································……H

参考文献······························································，············································……31

CB/T20242一2006/51012124:2001

前言

本标准等同采用国际标准51012214:2OO1((声学助听器真耳声特性的测量方法》。

本标准的附录A为资料性附录。

本标准由中国科学院提出。

本标准由全国声学标准化技术委员会(SAc/Tc71)归口。

本标准主要起草单位:中国科学院声学研究所和天津市助听器厂。

本标准主要起草人:戴根华，唐惠德，李晓东。

GB/T20242一2006/15《)12124:2001

引言

助听器在实际使用中的性能，与按EIC60118一0和EIC60118一7确定的性能可能明显不同，其原因

在于不同的人耳有不同的声学条件和藕合特性。因此，要使助听器选配合适，测量方法需考虑到不同佩

戴者的耳的藕合特性和对助听器性能的影响，就非常重要。这种测量方法己为大家所熟知，称作“真耳

测量”，它不时在不太理想的声环境下以临床方式进行。在这种条件下作的测量的准确度和重复性，与

声场、测试环境、测试信号特性、受试助听器、测试信号控制方法、声源位置和数据的采集、分析及表示，

还与佩戴者的许可的动作，有复杂的关系。

本标准详细规定了进行助听器真耳声特性测量的测试环境和方法，规定了必要的受试者参考点和

声场参考点，定义了所要用到的名词术语。

GB/T20242一2006/15012124:2001

声学助听器真耳声特性的测量方法

范围

本标准规定了助听器真耳声特性的测量方法和要求，目的是为在按照本标准所述的方法和采用符

合EIC61669要求的设备的条件下，保证对给定的助听器和人耳所作的测量有基本相同的结果。

助听器真耳声特性的测量，采用非线性的或分析处理的技术，结果只对所用的测试信号和测试条件

有效。测量应按照助听器制造商的建议进行，因为制造商可能要求使用本标准规定以外的特殊的测试

信号或测试条件。

2规范性引用文件