ITU-T REC. J.21 – PERFORMANCE CHARACTERISTICS OF 15 kHz TYPE SOUND-PROGRAMME
CIRCUITS
1 Application
2 Interface characteristics
2.1 Test conditions
2.2 Impedance
2.3 Levels
3 Overall performance
3.1 Common parameters
3.2 Additional parameters for stereophonic programme
transmission
3.3 Additional requirements for digital systems
Bibliography