1
Scope
1.1 Purpose
1.2 Test philosophy
2 References
3 Definitions
4 Abbreviations
5 Source recordings
5.1 Apparatus and environment
5.2 Speech material
5.3 Procedure
5.4 Calibration signals and speech
levels
6 Simulating system load
6.1 Requirements for a generic voice
load simulator
6.2 Determining load capacity of
tested systems
6.3 Controlling load applied to tested
systems
7 Processing of the speech
8 Test design
8.1 Test No. 1 – Effect of applied
load
8.2 Test No. 2 – Effect of digital
errors in the DCME control channel
9 Listening test procedure
10 Analysis of results
Annex A – Description
of circuit multiplication equipment
A.1 Definitions
A.2 Digital Speech Interpolation (DSI)
A.3 Speech detection
A.4 CME load
A.5 Overload strategies
A.6 Silence reconstruction methods
A.7 Circuit versus packet mode
A.8 Packet reconstruction
Annex B – Speech
material used to construct speech sequences
Annex C –
Instructions on the use of a limited number of sentences
Appendix I – Guidance
for conversation tests