GOST IEC 61842-2014 Microphones and earphones for speech communications《语音通信用麦克风和耳机》.pdf

1、 , () INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION (ISC) IEC 61842 2014 (IEC 61842:2002, IDT) IEC 618422014 II , 1.092 . 1.22009 . , . , , , 1 - ( ) 2 3 , ( 68- 30 2014 .) : ( 3166) 004 97 ( 3166) 004 97 AM BY KG MD RU 4 11 2014 . 1505- IEC 61842 2014 1 2015 . 5 IEC 61842:2002

2、 Microphones and earphones for speech communications ( ). (en). (IDT). , 6 , . () . , , 2015 , IEC 618422014 1 Microphones and earphones for speech communications 20150901 1 , , , , . , , . , . 2 . , ( ). : IEC 60268-1:1985 Sound system equipment Part 1: General ( . 1: ) IEC 60268-4 Sound system equ

3、ipment Part 4: Microphones ( . 4: ) IEC 60268-7 Sound system equipment Part 7: Headphones and earphones ( . 7: ) IEC 60318-1 Electroacoustics Simulators of human head and ear Part 1: Ear simulator for the calibration of supra-aural earphones (. . 1: , ) IEC 60603-11:1992 Connectors for frequencies b

4、elow 3 MHz for use with printed boards Part 11: Detail specification for concentric connectors (dimensions for free connectors and fixed connectors) ( 3 . 11: ( ) IEC 60711 Occluded-ear simulator for the measurement of earphones coupled to the ear by ear inserts ( , ) IEC 61094-1 Measurement microph

5、ones Part 1: Specifications for laboratory standard microphones ( . 1: ) IEC 61094-4 Measurement microphones Part 4: Specifications for working standard microphones ( . 4: ) ITU-T P.51 Artificial mouth ( ) ITU-T P.370 Coupling hearing aids to telephone sets ( ) 3 . 3.1 3.1.1 (handset): , (), , . IEC

6、 618422014 2 3.1.2 (headset): , , () , , , . 3.1.3 (earset): , , , , . , . 1 , , , 3.1.4 (microphone for speech communication): a) , , (- ); b) () (), , , . 1 , , , , . 2 4 , . 3.1.5 (earphone for speech communication): a) , , (- ); b) () , , , . 1 , , , . 2 4 , . 3.1.6 (microphone unit for speech c

7、ommunication): - , , , / . 4 . 3.1.7 (earphone unit for speech communications): - , , , . 4 . 3.1.8 (case for unit measurement): , . , , . 3.2 3.2.1 (mouthpiece holes): , , . 3.2.2 (earcap holes): , , . IEC 618422014 3 3.2.3 ( ) (artificial mouth): , , . 3.2.4 (artificial ear): , . . 3.2.5 (lip ring

8、): , , . 3.2.6 (lip plane): , . 3.2.7 (external d.c. power supply): , . 3.2.8 (additional resistance): , . 3.2.9 (probe coil): . 3.3 3.3.1 (/) sensitivity (V/Pa): , , , ; . , , . 3.3.2 () sensitivity level (dB): , (1 /). 3.3.3 (/) sensitivity to voltage (Pa/V): , , , ; . 3.3.4 () sensitivity level t

9、o voltage (dB): , (20 /). 3.3.5 (2/) sensitivity to power (Pa2/W): , , , ; . 3.3.6 () sensitivity level to power (dB): , (4 10-102/). 3.3.7 , , electrical impedance (): , . , . 3.3.8 () capacitance (nF): , . , , . 3.3.9 (plane of magnetic field strength measurement): , , 10 (. 4.2.7). IEC 618422014 4 4 4.1 IEC 60268-1 : 1) : IEC 60268-1, 2. 2) : IEC 60268-1, 8. 3) : IEC 60268-1, 10. 4.2 , , , , . IEC 60268-2. 4.2.1 () . 4.2.2 () ,