听力设备检测

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GB/T 7341.1-2010电声学 测听设备 第 1 部分：纯音听力计

本标准规定了听力计的通用要求，以及采用心理声学的测试方法，通过与标准参考听阈级的比较来设计的，用测定听阈级的纯音听力计的具体要求。本部分的目的旨在保证：用符合本部分要求的不同听力计，按照GB/T 16403及GB/T 7583所描述的方法，对指定人耳在125Hz～8kHz的频率范围内作听力测试，尤其是听阈测试，应能得到基本相同的结果；所得结果表示受试耳的听力与基准听阈之间的有效比较；听力计按其产生的测试信号范围，操作方式或测试的听觉功能范围的复杂性进行分类。

IEC 60455-3-4-2003电气绝缘用树脂基复合物.第3部分:单项材料规范.活页4:加填料的聚氨酯复合物

Gives the requirements for filled polyurethane resinous compounds in the cured form for classes PUR-F-4 to PUR-F-8.

IEC 63087-1-2021主动辅助生活用辅助听力设备和系统.第1部分：总则

This part of IEC 63087 specifies requirements, and the associated methods of measurement, for the electroacoustic performance of personal listening systems. This document specifies requirements for the provision of assistive listening in audio, video and multimedia systems and equipment. The requirements are of different kinds, because of the diversity of the hardware concerned. Existing IEC standards for methods of measurement are normatively referenced if they exist. Methods of measurement and performance requirements are specified in IEC 63087-21. This document does not apply to hearing aids. Also excluded are devices entirely worn on or in the ear, which cannot be measured independently.

ISO 389-1-2017声学 校正听力设备的基准零级 第1部分:纯音和压耳式耳机用的基准等效阈声压级

This document specifies a standard reference zero for the scale of hearing threshold level applicable to pure-tone air conduction audiometers, to promote agreement and uniformity in the expression of hearing threshold level measurements throughout the world. It states the information in a form suitable for direct application to the calibration of audiometers, that is, in terms of the reference equivalent threshold sound pressure levels of generic supra-aural earphones specified in 4.2, measured on an ear simulator complying with IEC 60318-1 and in terms of modelspecific data given in two additional tables for the IEC 60318-3 acoustic coupler and the IEC 60318-1 ear simulator, respectively. The data are based on an assessment of the information available from the various standardizing laboratories responsible for audiometric standards and from scientific publications. Some notes on the application and derivation of the reference levels are given in Annexes A and B.

ISO 389-2-1994声学 校正听力设备的基准零级 第2部分:纯音和插入式耳机用的基准等效阈声压级

Specifies levels supplementary to those specified in ISO 389:1991 (to be re-issued as ISO 389-1). Values given are applicable to insert earphones of type Etymotic Research ER-3A, coupled to the human ear by ear inserts of type ER-3-14.

ISO 389-3-2016声学. 听力测定设备校准用标准零级. 第3部分: 纯音和骨振动器的标准等效阈值振动力水平

This part of ISO 389 specifies the following data applicable tonthe calibration of bone vibrators for puretone bone-conductionnaudiometry:na) reference equivalent threshold vibratory force levelsn(RETVFL), corresponding to the threshold of hearing of youngnotologically normal persons by bone-conduction audiometry;nb) essential characteristics of the bone vibrator and the methodnof coupling to the test subject, and to the mechanical coupler;nc) essential characteristics of the masking noise and thenbaseline masking noise level applied to the ear not under test.nGuidance on the practical application of this part of ISO 389 innthe calibration of audiometers is given in Annex B.nRETVFL is the vibratory force level transmitted to a mechanicalncoupler of specified characteristics by a vibrator when applied tonthe mechanical coupler under stated conditions of test and whennenergized at the voltage level corresponding to the normalnthreshold of hearing for location on the mastoid prominence.nN

ISO 389-4-1994声学 校正听力设备的基准零级 第4部分:窄带掩蔽噪声基准级

Specifies reference levels for narrow-band masking noise presented by air conduction from an earphone in pure-tone audiometry. The data are given in terms of levels to be added to the reference equivalent threshold sound pressure levels for the corresponding pure-tone frequencies. Data are given for noise bandwidths of one-third and one-half octaves.

ISO 389-5-2006声学.测听设备的校准用参考零点.第5部分:频率范围:8kHz～16kHz的纯音用参考等效值阈声压级

This part of ISO 389 specifies reference equivalent threshold sound pressure levels (RETSPLs) of pure tonesin the frequency range from 8 kHz to 16 kHz applicable to the calibration of air conduction audiometers forspecific earphones.NOTE Some notes and references on the derivation and the test conditions used to determine the reference levelsare given in Annex A and the Bibliography.

ISO 389-6-2007声学.听力测量设备校准用参考零点.第6部分:短时持续听觉试验信号参考扩音阀

This part of ISO 389 specifies reference hearing threshold levels for tests signals of short duration applicable to the calibration of audiometric equipment where such signals are used.

ISO 389-8-2004声学.校正听力设备的基准零级.第8部分:耳罩式耳机纯音基准等效阈声压级

本部分规定了125 Hz～8 000 H2频率范围的纯音基准等效阈声压级(RETSPLs)，适用于配备了 一种特殊型号的耳罩式耳机(SENNHEISER HDA 200)的气导测听设备的校准。 注：在附录A和参考文献中给出了得出HDA 200型耳罩式耳机基准等效阈声压级的说明和测试条件。 附录B给出了这种耳罩式耳机的声衰减。附录C给出了A—E类和B—E类语言听力计(见 GB／T 7341．2)耳机的自由场等效输出修正值。

ISO 389-9-2009声学.校准测听设备的基准零级.第9部分:基准听力阈级测定的首选试验条件

This part of ISO 389 specifies test conditions for determiningnthe hearing thresholds of subjects for the purpose of establishingnstandardized values for reference hearing threshold levels.

ITU-R BR.785-1 SPANISH-2001在多媒体发布环境中发布节目

The ITU Radiocommunication Assembly, considering that television programmes can be produced for release on a variety of media;that end-user television installations can desirably be conceived to use programmes delivered through a variety of media; that the same concept applies to audio programmes and audio end-user installations; that there is a need to ensure harmonization of standards between programme generation and programme presentation; that the terms of the ITU-R cooperation with the IEC and the IS0 are described in Opinion 16 and Resolution ITU-R 41.

ITU-R REPORT M.2014-1-2006用于调度业务的地面数字移动系统

Demand in the land mobile service is on the increase due to annual growth as well as to new data-based service requirements. This has led to the development of more spectrally efficient technologies utilizing digital modulation and in many cases trunking. These technologies are being introduced in systems worldwide to accommodate this demand.

EN ISO 389-2-1996声学.校正听力设备的基准零级.第2部分:纯音和插入式耳机用的基准等效阈声压级 ISO 389-2-1994

This part of ISO 389 specifies reference equivalent threshold sound pressure levels (RETSPL) forThe calibration of pure-tone audiometers supplementary to those specified in ISO 389:1991, Values given inThis part of ISO 389 are applicable to insert earphones of a pattern specified in clause 4

EN ISO 389-3-2016声学.听力设备校正用基准零级.第3部分:骨振器纯声基准等效閾力级(ISO 389-3:2016)

Dieser Teil von ISO 389 legt die folgenden, für die Kalibrierung von Knochenleitungshörern in der Reinton-Knochenleitungs-Audiometrie anwendbaren Daten fest: a) Äquivalente Bezugs-Schwellenkraftpegel (RETVFL), die den durch Knochenleitungs-Audiometrie bestimmten Hörschwellenpegeln von jungen, otologisch normalen Personen entsprechen; b) Wesentliche Eigenschaften des Knochenleitungshörers sowie die Methode zur Ankopplung an den Probanden und an den mechanischen Kuppler; c) Wesentliche Eigenschaften und der Grundpegel des Verdeckungsgeräuschs, mit dem das nicht geprüfte Ohr beschallt wird. Anleitung zur praktische Anwendung dieses Teils von ISO 389 bei der Kalibrierung von Audiometer ist im Anhang B enthalten. Der Bezugs-Schwellenpegel der periodischen Kraft ist der vibratorische Wert der Kraft auf einen mechanischen Kuppler mit festgelegten Eigenschaften, die über einen Vibrator, wenn ein mechanischen Kuppler mit festgelegten Prüfbedingungen verwendet wird, auf diesen wirkt und dieser mit einer Spannung, die den üblichen Hörschwellen für die Stelle entspricht, betrieben, am vorstehenden Teil des Mastoids angewendet wird. ANMERKUNG 1 Werte für die Unterschiede zwischen den äquivalenten Bezugs-Schwellenkraftpegeln bei Stirnankopplung und bei Mastoidankopplung sind zur Information in Anhang C angegeben. ANMERKUNG 2 Empfohlene Verfahren zur Durchführung der Knochenleitungs-Audiometrie sind in ISO 8253-1 beschrieben.

EN ISO 389-4-1998声学.校正听力设备的基准零级.第4部分:窄带掩蔽噪声基准级［代替:CEN EN 28798］

This part of ISO 389 specifies reference levels fornarrow-band masking noise presented by air con-duction from an earphone in pure-tone audiometry.The data are given in terms of levels to be added tothe reference equivalent threshold sound pressurelevels forThe corresponding pure-tone frequencies asspecified in ISO 389:1991 or ISO 389-2, respectively,whenThe masking earphone is placed onThe appro-priate acoustic coupler, ear simulator or artificial ear.Data are given for noise bandwidths of one-third andone-half octaves.NOTE 1 Some notes onThe derivation of the referencelevels are given in annex A.

EN ISO 389-6-2007声学.校正听力设备的基准零级.第6部分:短时持续听觉试验信号参考扩音阀

This part of ISO 389 specifies reference hearing threshold levels for tests signals of short duration applicable to the calibration of audiomentric equipment where such signals are used.