EN 300 973 : 8.0.1
Current
The latest, up-to-date edition.
DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+); HALF RATE SPEECH; VOICE ACTIVITY DETECTOR (VAD) FOR HALF RATE SPEECH TRAFFIC CHANNELS
Hardcopy , PDF
English
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Foreword
1 Scope
2 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): VAD performance
Annex B (informative): Simplified block filtering
operation
Annex C (informative): Pole frequency calculation
Annex D (informative): Change Request History
History
Presents the Voice Activity Detector (VAD) to be used in the Discontinuous Transmission (DTX) as described in GSM 06.41 and also specifies the test methods to be used to verify that a VAD implementation complies with the present document.
| Committee |
SMG 11
|
| DocumentType |
Standard
|
| Pages |
22
|
| PublisherName |
European Telecommunications Standards Institute
|
| Status |
Current
|
| Standards | Relationship |
| I.S. EN 300 973:V7.0.1 | Identical |
| NEN EN 300973 : 2000 | Identical |
| NBN EN 300 973 : 2001 | Identical |
| PN EN 300 973 : 2005 | Identical |
| TR 102 024-7 : 4.1.1 | TELECOMMUNICATIONS AND INTERNET PROTOCOL HARMONIZATION OVER NETWORKS (TIPHON) RELEASE 4; END-TO-END QUALITY OF SERVICE IN TIPHON SYSTEMS; PART 7: DESIGN GUIDE FOR ELEMENTS OF A TIPHON CONNECTION FROM AN END-TO-END SPEECH TRANSMISSION PERFORMANCE POINT OF VIEW |
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