1 Scope
2 References
3 Definitions
3.1 Terms
defined elsewhere
3.2 Terms
defined in this Recommendation
4 Abbreviations
and acronyms
5 General
description
6 Physical characteristics
6.1 General
rules
6.2 Pin
assignments
7 Terminal
electrical interface specification
7.1 Communication
mode (terminal)
7.2 Multimedia
playback mode (terminal)
8 Headset
specification
8.1 Communication
mode (headset) for the communication mode
8.2 Multimedia
playback mode (headset)
9 Function
requirements for terminals with the universal headset interface
Annex A – Interpolation
method for diffuse-field correction
Annex B – Recording
procedure using a representative headset
Appendix I – Audio connectivity for sockets with four
contact points
I.1 2.5 mm
diameter plug connector with four poles
I.2 2.5 mm
diameter socket connector with four contact points
I.3 3.5 mm
diameter plug connector with four poles
I.4 3.5 mm
diameter socket connector with four contact points
Appendix II – Audio connectivity for sockets with four
contact points (optional dimensions to accommodate terminal designs with curved
edges)
Appendix III – Audio connectivity for sockets with
three contact points
III.1 2.5 mm
diameter plug connector with three poles
III.2 2.5 mm
diameter socket connector with three contact points
III.3 3.5 mm
diameter plug connector with three poles
III.4 3.5 mm
diameter socket connector with three contact points
Appendix IV – Other considerations
IV.1 Filter
recommendation
IV.2 Electrostatic
discharge
IV.3 Microphone
basics – background
IV.4 Vcc
voltage for microphone bias
IV.5 DC
resistance of microphone
Bibliography