17.140.01 声学测量和噪声抑制综合 标准查询与下载



共找到 843 条与 声学测量和噪声抑制综合 相关的标准,共 57

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

ICS
17.140.01
CCS
I659
发布
2022-11-25
实施
2022-11-25

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

ICS
17.140.01
CCS
I659
发布
2022-11-25
实施
2022-11-25

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

ICS
17.140.01
CCS
发布
2022-10-31
实施
2022-10-31

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

ICS
17.140.01
CCS
发布
2022-10-01
实施

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

ICS
17.140.01
CCS
发布
2022-09-22
实施
2022-09-22

Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure —Survey method using an enveloping measurement surface over a reflecting plane

ICS
17.140.01
CCS
发布
2022-09-13
实施

Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure —Precision methods for reverberation test rooms

ICS
17.140.01
CCS
发布
2022-09-13
实施

Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure —Precision methods for anechoic rooms and hemi-anechoic rooms

ICS
17.140.01
CCS
发布
2022-09-13
实施

Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure —Precision methods for reverberation test rooms

ICS
17.140.01
CCS
发布
2022-09-13
实施

Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure —Precision methods for anechoic rooms and hemi-anechoic rooms

ICS
17.140.01
CCS
发布
2022-09-13
实施

Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure —Survey method using an enveloping measurement surface over a reflecting plane

ICS
17.140.01
CCS
发布
2022-09-13
实施

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

ICS
17.140.01
CCS
发布
2022-09-13
实施

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

ICS
17.140.01
CCS
发布
2022-09-13
实施

Filters for the measurement of audible sound in the presence of ultrasound

ICS
17.140.01
CCS
发布
20220906
实施
20220906

Acoustics-determination of sound absorption coefficient and impedance in impedance tubes-Part 2:Transfer-function method

ICS
17.140.01
CCS
发布
20220810
实施
20220810

This document applies to hearing aid fitting management (HAFM) services offered by hearing aid professionals (HAP) when providing benefit for their clients. The provision of hearing aids relies on the knowledge and practices of a hearing aid professional, to ensure the proper fitting and adequate service in the interest of the client with hearing loss. This document specifies general processes of HAFM from the client profile to the follow-up through administering, organising and controlling hearing aid fitting through all stages. It also specifies important preconditions such as education, facilities and systems that are required to ensure proper services. The focus of this document is the services offered to the majority of adult clients with hearing impairment. It is recognized that certain populations with hearing loss such as children, persons with other disabilities or persons with implantable devices can require services outside the scope of this document. This document generally applies to air conduction hearing aids and for the most part also to bone conduction devices. Hearing loss can be a consequence of serious medical conditions. Hearing aid professionals are not in a position to diagnose or treat such conditions. When assisting clients seeking hearing rehabilitation without prior medical examination, hearing aid professionals are expected to be observant of symptoms of such conditions and refer to proper medical care. Further to the main body of the document, which specifies the HAFM requirements and processes, several informative annexes are provided. Appropriate education of hearing aid professionals is vital for exercising HAFM. Annex A defines the competencies required for the HAFM processes. Annex B offers a recommended curriculum for the education of hearing aid professionals. Annex C is an example of an appropriate fitting room. Annex D gives guidance on the referral of clients for medical or other specialist examination and treatment. Annex E is a recommendation for important information to be exchanged with the client during the process of HAFM. Annex F is a comprehensive terminology list offering definitions of the most current terms related to HAFM. It is the intention that these annexes be helpful to those who wish to deliver HAFM of the highest quality.

Acoustics — Hearing aid fitting management (HAFM)

ICS
17.140.01
CCS
发布
2022-05-12
实施

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 - Part 1: Qualification of free-field environments (ISO 26101-1:2021)

ICS
17.140.01
CCS
发布
2022-05-11
实施
2022-08-31

1.1 This specification describes the construction and installation of standard reference specimens for quality control of laboratory sound transmission loss measurements using Test Method E90. 1.2 Laboratories may choose to construct and test all of the reference specimens described here or only a subset. Specific specimens may be required by a test method or an accrediting agency. 1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.4 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 Specification for Reference Specimen for Sound Transmission Loss

ICS
17.140.01
CCS
发布
2022-04-01
实施

Acoustics — Determination of sound power levels of noise sources using sound pressure — Engineering methods for small, movable sources in reverberant fields — Part 2: Methods for special reverberation

ICS
17.140.01
CCS
发布
2021-12-29
实施

Acoustics — Determination of sound power levels of noise sources using sound pressure — Engineering methods for small, movable sources in reverberant fields — Part 2: Methods for special reverberation

ICS
17.140.01
CCS
发布
2021-12-29
实施



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