TR 101 294 : 8.0.0
Current
The latest, up-to-date edition.
DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+); SUBJECTIVE TESTS ON THE INTEROPERABILITY OF THE HALF RATE/FULL RATE/ENHANCED FULL RATE (HR/FR/EFR) SPEECH CODECS, SINGLE, TANDEM AND TANDEM FREE OPERATION
Hardcopy , PDF
English
Intellectual Property Rights
Foreword
1 Scope
2 References
3 Definitions and abbreviations
3.1 Definitions
3.2 Abbreviations
4 General
5 Testing methodology
5.1 Phase 1: Investigation under conditions free of
environmental noise
5.2 Phase 2: Investigation under conditions with far
end environmental noise
6 Test set-up
6.1 Host Lab processing for the evaluation of HR-FR-EFR
interoperability (phase 1)
6.2 Error concealment for TCH/FS
6.3 Control of codec simulation
6.4 Pre-processing and post-processing procedure
6.5 Conclusion of Phase 1
6.6 Host Lab processing for the evaluation of HR-FR-EFR
interoperability (phase 2)
6.7 Processing
6.8 Conclusion of Phase 2
7 Summary of results
7.1 Quality under error conditions
7.2 Quality under tandeming conditions
7.3 Quality with far end background noise
7.4 Quality enhancement using TFO techniques
7.5 Effects of input frequency response
8 Conclusion
Annex A: Bibliography
Annex B: Deliverables to ETSI
Annex C: Phase 1: Tables of experimental results
Annex D: Phase 2: Tables of experimental results
History
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