ANSI ASA S3.35-2010 (R2015) 模拟真耳工作环境下的助听器性能特性的测量方法

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公子舒夜 2026-08-24 18 8.71MB 49 页 20星币
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ANSI/ASA S3.35-201 0
(Revision of ANSI S3.35-2004)
AMERICAN NATIONAL STANDARD
Method of Measurement of Performance Characteristics of
Hearing Aids Under Simulated Real-Ear Working
Conditions
Accredited Standards Committee S3, Bioacoustics
Standards Secretariat
Acoustical Society of America
35 Pinelawn Road, Suite 1 1 4 E
Melville
,
NY 1 1 747-31 77
ANSI/ASA S3.35-2010
Reaffirmed by ANSI
May 21 , 201 5
The American National Standards Institute, Inc. (ANSI) is the national coordinator of
voluntary standards development and the clearinghouse in the U.S.A. for information
on national and international standards.
The Acoustical Society of America (ASA) is an organization of scientists and
engineers formed in 1 929 to increase and diffuse the knowledge of acoustics and to
promote its practical applications.
ANSI/ASA S3.35-201 0
Revision of ANSI S3.35-2004
AMERICAN NATIONAL STANDARD
Method of Measurement of Performance
Characteristics of Hearing Aids Under Simulated
Real-Ear Working Conditions
Secretariat
Acoustical Society of America
Approved February 25, 201 0 by:
American National Standards Institute, Inc.
Abstract
This standard describes techniques used to measure hearing aids under simulated conditions of real
ear use. The need for such a standard arises from the importance of including the acoustical
variations in the performance data that are caused when hearing aids are worn. For example, the
diffraction of the body and head of a hearing aid wearer on incident sound can significantly change the
input sound pressure to a hearing aid microphone. For the purpose of these measurements, a
suitable manikin and ear simulator are used to represent a typical hearing aid wearer. Acoustical
requirements of the test space as well as how the manikin is positioned with respect to the sound
source are given. Two methods are presented by which to control the level of the incident sound field
at the location of the hearing aid on the manikin during the testing. Procedures are provided to obtain
the insertion gain, or the amount by which the hearing aid changes the eardrum sound pressure in the
ear simulator of the manikin relative to that in the unaided condition. Procedures are also provided to
obtain the directional response of the manikin as a function of azimuth and elevation of the sound
source, with and without the assistance of a hearing aid, and to calculate the directivity index from the
directional response. The gains obtained with a hearing aid are distinguished by whether the unaided
manikin gain is included in (simulated real-ear aided gain) or subtracted from (simulated insertion gain)
the aided gain.

标签： #测量 #特性 #环境

摘要：

本文档介绍美国国家标准ANSI ASA S3.35-2010 (R2015)《模拟真耳工作环境下的助听器性能特性的测量方法》，该标准规定了在模拟真实人耳声学工作条件下对助听器输出性能进行统一测量与评估的技术规程。内容涵盖测试设备配置、耦合腔与模拟耳选择、声学负载条件设定、输入信号类型及结果记录要求，旨在替代传统简易耦合器测量，更准确地反映助听器在实际佩戴时的声学表现。该标准适用于助听器研发、生产质检及临床验配中的性能验证，帮助工程技术人员和听力学家在可控条件下获得具有可比性和重复性的数据，从而优

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作者：公子舒夜 分类：国际标准 价格：20星币 属性：49 页 大小：8.71MB 格式：PDF 时间：2026-08-24

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