• Shopping Cart
    There are no items in your cart

TR 101 085 : 8.0.0

Current

Current

The latest, up-to-date edition.

DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+); PERFORMANCE CHARACTERIZATION OF THE GSM ENHANCED FULL RATE (EFR) SPEECH CODEC

Available format(s)

Hardcopy , PDF

Language(s)

English

€17.53
Excluding VAT

Intellectual Property Rights
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)
Annex B: Change Request History
History

Provides information on the performance of the GSM enhanced full rate speech codec. Experimental results from the Pre-selection and verification tests carried out during the standardization process by the SEG (speech Expert Group) reported to give a more detailed picture of behaviour of the GSM enhanced full rate speech codec under different operation conditions.

Committee
SMG 11
DocumentType
Standard
Pages
27
PublisherName
European Telecommunications Standards Institute
Status
Current

ETSI GSM 03.50 : 050000 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+) - TRANSMISSION PLANNING ASPECTS OF THE SPEECH SERVICE IN THE GSM PUBLIC LAND MOBILE NETWORK (PLMN)
ETSI GSM 06.10 : 4.0.2 GSM FULL RATE SPEECH TRANSCODING
ETSI GSM 06.20 : 4.2.1 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM; HALF RATE SPEECH TRANSCODING
ETSI GSM 03.05 : 4.0.1 TECHNICAL PERFORMANCE OBJECTIVES

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.