DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM; ENHANCED FULL RATE (EFR) SPEECH PROCESSING FUNCTIONS; GENERAL DESCRIPTION

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English

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European Telecommunications Standards Institute

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Foreword
1 Scope
2 Normative references
3 Definitions and abbreviations
   3.1 Definitions
   3.2 Abbreviations
4 General
5 Enhanced Full Rate speech channel
   transcoding
6 Enhanced Full Rate speech channel
   discontinuous transmission (DTX)
7 Enhanced Full Rate speech channel
   Voice Activity Detection (VAD)
8 Enhanced Full Rate speech channel
   comfort noise insertion
9 Enhanced Full Rate speech channel
   lost speech frame substitution and muting
10 Enhanced Full Rate codec homing
11 Alternative Enhanced Full Rate
   implementation using the Adaptive
   Multi Rate 12.2 kbit/s mode
Annex A (informative): Change Request History
History

This is an introduction to GSM EFR 06.60, GSM EFR 06.11, GSM EFR 06.62, GSM EFR 06.81 and GSM EFR 06.82 ETSs dealing with the speech processing functions in the enhanced full rate channel of the GSM system. A general overview of the speech processing functions is given with reference to the ETSs where each function is specified in detail.

Committee	SMG 11
DocumentType	Standard
Pages	14
PublisherName	European Telecommunications Standards Institute
Status	Current
Supersedes	PRETS 300 723 : NOV 96

ETS 300 729 : 20002	DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - DISCONTINUOUS TRANSMISSION (DTX) FOR ENHANCED FULL RATE (EFR) SPEECH TRAFFIC CHANNELS
ETS 300 726 : 20002	DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+) - ENHANCED FULL RATE (EFR) SPEECH TRANSCODING
ETS 300 737 : 20002	DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+); IN-BAND CONTROL OF REMOTE TRANSCODERS AND RATE ADAPTORS FOR ENHANCED FULL RATE (EFR) AND FULL RATE TRAFFIC CHANNELS
ETS 300 725 : 20001	DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+); TEST SEQUENCES FOR THE GSM ENHANCED FULL RATE (EFR) SPEECH CODEC

ETSI GSM 05.03 : 050200	DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+); CHANNEL CODING
ETSI GSM 01.04 : 050000	EUROPEAN DIGITAL CELLULAR TELECOMMUNICATION SYSTEM (PHASE 2); DEFINITIONS, ABBREVIATIONS AND ACRONYMS
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)

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ETS 300 723 : 20002

DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM; ENHANCED FULL RATE (EFR) SPEECH PROCESSING FUNCTIONS; GENERAL DESCRIPTION

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