JJF 1034-2020

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JJF 1034-2020
Terms and Definitions for Acoustical Metrology
National Metrology Technical Specifications of the People's Republic of China
Acoustic measurement terms and definitions
2020-09-11 released
2021-03-11 implementation
Issued by the State Administration for Market Regulation
Acoustic measurement terms and definitions
Replace JJF 1034-2005
Focal point. National Technical Committee of Acoustics Measurement
Drafting unit. China Academy of Testing Technology
Hunan Sound Instrument Measurement and Control Technology Co., Ltd.
Shenzhen Institute of Metrology and Quality Inspection
China Institute of Metrology
China Academy of Building Research Co., Ltd.
Shanghai Institute of Metrology and Testing Technology
This specification entrusts the National Acoustics Metrology Technical Committee to be responsible for interpretation
Drafters of this specification.
Pu Zhiqiang (China Academy of Testing Technology)
Liu Xiangheng (Hunan Sound Instrument Measurement and Control Technology Co., Ltd.)
Zhang Guoqing (Shenzhen Institute of Metrology and Quality Inspection)
Zhong Bo (China Institute of Metrology)
Yan Guojun (China Academy of Building Research Co., Ltd.)
Tao He (China Academy of Testing Technology)
Sun Lei (China Academy of Testing Technology)
An Zhaoliang (Shanghai Institute of Metrology and Testing Technology)
table of Contents
Introduction (Ⅱ)
1 scope (1)
2 Reference documents (1)
3 General terms (2)
4 Electroacoustic (19)
5 Water sound (37)
6 Ultrasound and infrasound (41)
7 Listening (51)
8 Building Acoustics and Noise (57)
9 Speech Acoustics and Music Acoustics(70)
10 Measurement methods and experimental conditions (76)
Appendix A Commonly used symbols and abbreviations for acoustic measurement (80)
Chinese Pinyin Index (88)
English Correspondence Index (99)
introduction
This specification is based on JJF 1071-2010 "Rules for the Compilation of National Metrology Standards and Specifications" and GB/T.20001.1-
2001 "Standard Preparation Rules Part 1.Terminology" given rules and formatting.
This specification replaces JJF 1034-2005 "Acoustic Metrology Terms and Definitions". Compared with JJF 1034-2005, the main technical changes are as follows.
---Deleted sound [wave], longitudinal wave, transverse wave, free traveling wave, plane wave, cylindrical wave, spherical wave, wave front
(Wavefront), spectrum (spectrum), line spectrum, continuous spectrum, spectral density, power spectral density, A [weighting] sound [pressure] level,
Equivalent [continuous A weighting] sound [pressure] level, main axis, harmonics, narrowband noise, nominal frequency, digital audio frequency, sampling
Sample frequency, folding frequency, in-band frequency, upper-band frequency, out-of-band frequency, rise time, fall time, sound
Process, octave, cent, note, rhythm, chromatic scale, transducer, passive transducer, active transducer, linear transducer,
Reversible transducer, reciprocal transducer, transmitter, receiver, loudspeaker, reciprocal calibrator, underwater acoustic probe and
A total of 45 items for comparison and calibration;
---Modified acoustic measurement, sound field, free field, diffusion [sound] field, sound velocity, particle displacement, particle velocity,
115 items including static pressure, sound pressure, sound intensity [degree], frequency weighting, time weighting, and level;
---Added subacoustics, audiology, language acoustics, music acoustics, architectural acoustics, acoustic measurement, audible sound,
360 items such as environmental noise and self-generated noise;
---Added 195 symbols and abbreviations such as bandwidth indication value, filter attenuation, sound absorption, [channel] crosstalk attenuation, etc.;
---The items are arranged according to the professional classification of acoustic measurement.
The previous releases of this specification are as follows.
---JJF 1034-2005 "Acoustic Metrology Terms and Definitions";
---JJF 1034-1992 "Acoustic Metrology Terms and Definitions".
Acoustic measurement terms and definitions
1 Scope
This specification defines the commonly u