DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - PERFORMANCE CHARACTERIZATION OF THE GSM ENHANCED FULL RATE (EFR) SPEECH CODEC

Available format(s)

Hardcopy , PDF

Language(s)

English

Publisher

European Telecommunications Standards Institute

Foreword
Introduction
1 Scope
2 References
3 Abbreviations
4 Quality under error (EP0 - EP3) and tandeming
   conditions (Exp Number 1 and Exp Number 5)
5 Quality under background noise conditions
   (Exp Number 2 and Exp Number 3)
6 Talker dependency (Exp Number 4)
7 DTX system
   7.1 Channel activity in DTX mode
   7.2 DTX/CNI Informal Expert Listening tests
8 Performance with DTMF tones
   8.1 Introduction
   8.2 Test environment
   8.3 Results
9 Network information tones
10 Performance with special input signals
   10.1 Music signals
   10.2 Noise signals
11 Performance with different languages
12 Delay
13 Frequency response
   13.1 Introduction
   13.2 Test environment
   13.3 Results
14 Complexity
15 Summary of the results from the subjective testing
Annex A: Summary of Results (lab by lab)
      A.1 Quality under Error and tandeming conditions
      A.2 Quality under Background noise conditions
      A.3 Quality for Talker Dependency (DMOS and SD)
History

Provides background information on the performance of the GSM enhanced full rate speech codec.

Committee	SMG 2
DocumentType	Standard
Pages	29
PublisherName	European Telecommunications Standards Institute
Status	Current

ETS 300 581-2 : 20002	DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2); HALF RATE SPEECH; PART 2: HALF RATE SPEECH TRANSCODING
ETS 300 540 : 20006	DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2); TRANSMISSION PLANNING ASPECTS OF THE SPEECH SERVICE IN THE GSM PUBLIC LAND MOBILE NETWORK (PLMN) SYSTEM
ETR 229 : 20001	EUROPEAN DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM; HALF RATE SPEECH; PERFORMANCE CHARACTERIZATION OF THE GSM HALF RATE SPEECH CODEC
ETS 300 580-2 : 20003	DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2) - FULL RATE SPEECH - PART 2: TRANSCODING
ETR 120002 : 20002	EUROPEAN DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2); TECHNICAL PERFORMANCE OBJECTIVES