DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - VOICE ACTIVITY DETECTOR (VAD) FOR ENHANCED FULL RATE (EFR) SPEECH TRAFFIC CHANNELS

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Hardcopy , PDF

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English

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European Telecommunications Standards Institute

Foreword
1 Scope
2 Normative references
3 Definitions, symbols and abbreviations
   3.1 Definitions
   3.2 Symbols
   3.3 Abbreviations
4 General
5 Functional description
   5.1 Overview and principles of operation
   5.2 Algorithm description
6 Computational description overview
   6.1 VAD modules
   6.2 Pseudo-floating point arithmetic
Annex A (informative): Simplified block filtering
        operation
Annex B (informative): Pole frequency calculation
History

Specifies the Voice Activity Detector (VAD) to be used in the Discontinuous Transmission (DTX) as described in GSM EFR 06.31. It also specifies the test methods to be used to verify that a VAD complies with this ETS. The requirements are mandatory on any VAD to be used either in GSM Mobile Stations (MS)s or Base Station Systems (BSS)s that utilise the enhanced full-rate speech traffic channel.

Committee	SMG 2
DocumentType	Standard
Pages	21
PublisherName	European Telecommunications Standards Institute
Status	Current
Supersedes	PRETS 300 730 : NOV 96

Standards	Relationship
PN ETS 300 730 : 2005	Identical

ETS 300 729 : 20002	DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - DISCONTINUOUS TRANSMISSION (DTX) FOR ENHANCED FULL RATE (EFR) SPEECH TRAFFIC CHANNELS
ETS 300 724 : 20001	DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - ANSI-C CODE FOR THE GSM ENHANCED FULL RATE (EFR) SPEECH CODEC
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

ETS 300 725 : 20001	DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+); TEST SEQUENCES FOR THE GSM ENHANCED FULL RATE (EFR) SPEECH CODEC
ETS 300 726 : 20002	DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+) - ENHANCED FULL RATE (EFR) SPEECH TRANSCODING
ETS 300 729 : 20002	DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - DISCONTINUOUS TRANSMISSION (DTX) FOR ENHANCED FULL RATE (EFR) SPEECH TRAFFIC CHANNELS
ETS 300 724 : 20001	DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - ANSI-C CODE FOR THE GSM ENHANCED FULL RATE (EFR) SPEECH CODEC
ETR 100 : 20003	EUROPEAN DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2); ABBREVIATIONS AND ACRONYMS

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ETS 300 730 : 20001

DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - VOICE ACTIVITY DETECTOR (VAD) FOR ENHANCED FULL RATE (EFR) SPEECH TRAFFIC CHANNELS

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