Устройства электроакустические шумозащищенные систем телефонной связи. Термины и определения

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Elektroacoustic anti-noise devices for telefone communication systems. Terms and definitions

2.

23. Reception coefficient of a microphone-earphone device
24. Transmission coefficient of a microphone-earphone device
25. Nominal output level of a microphone-earphone device electroacoustic transmitting path

Anti-noise factor 17
Electroacoustic crosstalk attenuation 21
Electroacoustic receiving path of a microphone-earphone device 6
Electroacoustic transmitting path of a microphone-earphone device 5
Electromagnetic noise immunity of a microphone (laryngophone) 22
Handset 7
Headset 8
High-level noise-cancelling headset 13
Laryngophone-earphone headset 10
Low-level noise-cancelling headset 11
Medium-level noise-cancelling headset 12
Microphone-earphone device 4
Microphone-earphone headset 9
Nominal output level of a microphone-earphone device electroacoustic transmitting path 25
Noise-cancelling microphone mask 1
Overall anti-noise factor 19'
Overall signal-to-noise ratio 16
Receiving-end anti-noise device 2
Receiving-end noise-cancelling factor 20
Reception coefficient of a microphone-earphone device 23
Signal-to-noise ratio 14
Spectral anti-noise factor 18
Spectral signal-to-noise ratio 15
Telephone set 3
Transmission coefficient of a microphone-earphone device 24
4. 7. 8. n A *= 20 Ig-T” = 20 .
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