17.140.01 声学测量和噪声抑制综合 标准查询与下载

KS I ISO 3740-2023 声学噪声源声功率级的测定基本标准使用指南

Acoustics — Determination of sound power levels of noise sources — Guidelines for the use of basic standards

ISO/FDIS 9613-2:2023 声学 — 声音在室外传播过程中的衰减 — 第 2 部分：室外声压级预测的工程方法

Acoustics — Attenuation of sound during propagation outdoors — Part 2: Engineering method for the prediction of sound pressure levels outdoors

BS ISO 532-3:2023 声学 计算响度的方法 Moore-Glasberg-Schlittenlacher 方法

Acoustics. Methods for calculating loudness - Moore-Glasberg-Schlittenlacher method

ISO/FDIS 10534-2:2023 声学 阻抗管声学特性的测定 第2部分：法向吸声系数和法向表面阻抗的双麦克风技术

Acoustics — Determination of acoustic properties in impedance tubes — Part 2: Two-microphone technique for normal sound absorption coefficient and normal surface impedance

ISO 532-3:2023 声学 计算响度的方法 第 3 部分：Moore-Glasberg-Schlittenlacher 方法

Acoustics — Methods for calculating loudness — Part 3: Moore-Glasberg-Schlittenlacher method

ASTM F2174-02(2023) 验证声发射传感器响应的标准实践

1.1  This practice is used for routinely checking the sensitivity of acoustic emission (AE) sensors. It is intended to provide a reliable, precisely specified way of comparing a set of sensors or telling whether an individual sensor's sensitivity has degraded during its service life, or both. 1.2  The procedure in this practice is not a “calibration” and does not give frequency-response information. 1.3  The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.4  This practice does not purport to recommend one sensor manufacturer over another nor does it imply that one type of sensor will react differently from another when using this procedure. 1.5  This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6  This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Practice for Verifying Acoustic Emission Sensor Response

T/CASME 321-2023 声速测定仪

本文件规定了声速测定仪的术语和定义、工作环境条件、技术要求、试验方法、检验规则、标志、包装、运输及贮存。

Sound velocity meter

23/30433783 DC BS EN ISO 26101-2 声学 声环境鉴定试验方法第2部分：环境校正的确定

BS EN ISO 26101-2. Acoustics. Test methods for the qualification of the acoustic environment - Part 2. Determination of the environmental correction

23/30433796 DC BS EN ISO 5114-1 声学 与声发射测量相关的不确定性的确定 第 1 部分：通过声压测量确定的声功率级

BS EN ISO 5114-1. Acoustics. Determination of uncertainties associated with sound emission measures - Part 1. Sound power levels determined from sound pressure measurements

23/30433779 DC BS EN ISO 3744 声学 使用声压确定噪声源的声功率级 反射平面上基本自由场的工程方法

BS EN ISO 3744. Acoustics. Determination of sound power levels of noise sources using sound pressure. Engineering methods for an essentially free field over a reflecting plane

ASTM E1932-12(2022) 小型零件声发射检验标准指南

1.1 This guide covers techniques for conducting acoustic emission (AE) examinations of small parts. It is confined to examination objects (or defined regions of larger objects) where there is low AE signal attenuation throughout the examination region. This eliminates the consideration of complex attenuation factor corrections and multiple sensor and array placements based on overcoming signal losses over distances. 1.2 The guide assumes a typical AE examination as one where there is a controlled or measured stress acting upon the part being monitored by AE. Particular emphasis is placed on sensor and system selection, sensor placements, stressing considerations, noise reduction/rejection techniques, spatial filtering, location determination, use of guard sensors, collection of AE data, AE data analysis and report. The purpose of the AE examination is to analyze how an object under evaluation is withstanding the applied load. 1.3 Possible applications of this guide includes materials characterization, quality control of production processes, proof testing after fabrication, evaluating regions of interest of larger structures and retesting after intervals of service. The applied load may include mechanical forces (tension, compression or torsional) internal pressure and thermal gradients. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Guide for Acoustic Emission Examination of Small Parts

22/30450621 DC BS ISO 9613-2 声学 声音传播过程中的衰减 第 2 部分：室外声压级预测的工程方法

BS ISO 9613-2. Acoustics. Attenuation of sound during propagation - Part 2. Engineering method for the prediction of sound pressure levels outdoors

T/NSSQ 006-2022 基于物联网和声纹识别的身份验证规范

本文件规定了基于物联网和声纹识别的身份验证规范的术语和定义，并对包括采集和存储图像信息、随机字段截取、获取身份验证语音、身份验证等进行规范。

Authentication specification based on Internet of things and voiceprint recognition

T/NSSQ 007-2022 结合瞬时频率的多通道语音识别规范

本文件规定了结合瞬时频率的多通道语音识别规范的术语和定义、获取原始频域的目标语音信号、提取瞬时频率特征、提取MEL、获得目标特征等进行规范。

Specification for instantaneous frequency multichannel speech recognition

T/NSSQ 005-2022 基于网络融合的声纹识别规范

本文件规定了基于网络融合的声纹识别规范的术语和定义、注册登录、语音采集模块、声纹存储模块、声纹识别模块等进行规范。  

Voiceprint recognition specification based on network fusion

T/NSSQ 004-2022 基于双曲线空间的声纹识别规范

本文件规定了基于双曲线空间的声纹识别规范的术语和定义、第一预处理、提取第一声纹信息特征、获取目标特征、计算特征相似度、声纹识别结果输出等进行规范。

Specification of voiceprint recognition based on hyperbolic space

BS EN ISO 26101-1:2022 声学 声学环境鉴定测试方法 自由场环境鉴定

This document specifies methodology for qualifying acoustic spaces as anechoic and hemi-anechoic spaces meeting the requirements of a free sound field. This document specifies discrete-frequency and broad-band test methods for quantifying the performance of anechoic and hemi-anechoic spaces, defines the qualification procedure for an omni- directional sound source suitable for free-field qualification, gives details of how to present the results and describes uncertainties of measurement. This document has been developed for qualifying anechoic and hemi-anechoic spaces for a variety of acoustical measurement purposes. It is expected that, over time, various standards and test codes will refer to this document in order to qualify an anechoic or hemi-anechoic space for a particular measurement. Annex D provides guidelines for the specification of test parameters and qualification criteria for referencing documents. In the absence of specific requirements or criteria, Annex A provides qualification criteria and measurement requirements to qualify anechoic and hemi-anechoic spaces for general purpose acoustical measurements. This document describes the divergence loss method for measuring the free sound field performance of an acoustic environment.

Acoustics. Test methods for the qualification of the acoustic environment - Qualification of free-field environments

ASTM E1503-22 使用统计声音分析系统进行室外声音测量的标准试验方法

1.1 This test method covers the measurement of outdoor sound levels at specific locations using a digital statistical sound analysis system and a formal measurement plan. 1.1.1 This test method provides basic requirements for obtaining either a single set of data or multiple sets of related data. However, because there are numerous circumstances and varied objectives requiring multiple sets of data, the test method does not address planning of the measurement program. 1.2 The use of results of measurements performed using this test method include, but are not limited to, the following: 1.2.1 To characterize the acoustical environment of a site, 1.2.2 To characterize the sound emissions of a specific sound source which exhibits a temporal variation in sound output, and 1.2.3 To monitor the effectiveness of a noise impact mitigation plan. 1.3 This test method is intended to be used in conjunction with a measurement plan that references this test method. Changes or additions to the provisions of this test method shall be clearly stated in the plan. 1.3.1 In the event it is necessary, for example, because of time constraints, to conduct measurements without first formalizing a plan, this test method can be used if an operator/ observer whose qualifications are satisfactory to both the performing organization and the client is present at all times during the measurements and who complies, to the extent possible, with all the applicable requirements of this test method, including record keeping. 1.4 The data obtained using this test method enable comparison of sound level data with appropriate criteria. 1.4.1 The data obtained with this test method can be used in the derivation of loudness levels provided the necessary requirements regarding sample duration and signal bandwidth are observed in collecting the data. It is recommended that a specialist in the area of loudness evaluation be consulted in preparing a plan for measurements intended to produce data which will be used for this purpose. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Test Method for Conducting Outdoor Sound Measurements Using a Statistical Sound Analysis System

22/30427270 DC BS EN ISO 10534-2 声学 阻抗管特性的测定 第 2 部分：正常吸声系数和正常表面阻抗的 2 麦克风技术

BS EN ISO 10534-2. Acoustics. Determination of properties in impedance tubes - Part 2. 2-microphone technique for normal sound absorption coefficient and normal surface impedance

KS I ISO 3747:2022 声学.使用声压测定噪声源的声功率级和声能级.混响环境中现场使用的工程/测量方法

Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Engineering/survey methods for use in situ in a reverberant environment