ETS 300 580-6 : 20004
Current
The latest, up-to-date edition.
DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2) - FULL RATE SPEECH; PART 6: VOICE ACTIVITY DETECTION (VAD) FOR FULL RATE SPEECH TRAFFIC CHANNELS
Hardcopy , PDF
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Foreword
0.1 Scope
0.2 Normative references
0.3 Abbreviations
1 General
2 Functional description
2.1 Overview and principles of operation
2.2 Algorithm
3 Computational details
3.1 Adaptive filtering and energy computation
3.2 ACF averaging
3.3 Predictor values computation
3.4 Spectral comparison
3.5 Periodicity detection
3.6 Threshold adaptation
3.7 VAD decision
3.8 VAD hangover addition
3.9 Periodicity updating
3.10 Tone detection
4 Digital test sequences
4.1 Test configuration
4.2 Test sequences
Annex A (informative)
Annex 1 (informative): Simplified block filtering
operation
Annex 2 (informative): Description of digital test
sequences
Annex 3 (informative): VAD performance
Annex 4 (informative): Pole frequency calculation
Annex B (normative): Test sequences diskette
History
Specifies the voice activity detector (VAD) to be used in the Discontinuous Transmission (DTX). Also specifies the test methods to be used to verify that a VAD complies with the technical specification. Requirements are mandatory on any VAD to be used either in the GSM Mobile Stations or Base Station Systems.
| Committee |
SMG 11
|
| DocumentType |
Standard
|
| Pages |
41
|
| PublisherName |
European Telecommunications Standards Institute
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| DIN ETS 300580-6:2001-04 | Identical |
| PN ETS 300 580-6 : 2005 | Identical |
| NF ETS 300 580-6 : 1998 | Similar to |
| TS 101 377-3-13 : 1.1.1 | GEO-MOBILE RADIO INTERFACE SPECIFICATIONS; PART 3: NETWORK SPECIFICATIONS; SUB-PART 13: TRANSMISSION PLANNING ASPECTS OF THE SPEECH SERVICE IN THE PUBLIC SATELLITE MOBILE NETWORK (PSMN) SYSTEM; GMR-2 03.050 |
| NF ETS 300 500 : 1996 | DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2) - PRINCIPLES OF TELECOMMUNICATION SERVICES SUPPORTED BY A GSM PUBLIC LAND MOBILE NETWORK (PLMN) |
| TS 101 622 : 6.0.1 | DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+); GENERAL DESCRIPTION OF A GSM PUBLIC LAND MOBILE NETWORK (PLMN) (GSM 01.02 VERSION 6.0.1 RELEASE 1997) |
| ETS 300 726 : 20002 | DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+) - ENHANCED FULL RATE (EFR) SPEECH TRANSCODING |
| NF ETS 300 580-1 : 1998 | DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2) - FULL RATE SPEECH - PART 1: PROCESSING FUNCTIONS |
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