Table of Contents

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

Abstract

Contains the results obtained from an internationally co-ordinated subjective evaluation conducted by four laboratories to estimate the performance in mobile-to-mobile connections of the GSM half, full, and enhanced full rate speech codecs (including the expected advantages of the Tandem Free Operation),

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	SMG 11