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ETS 300 581-6 : 20001

M00044062

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ETS 300 581-6 : 20001

EUROPEAN DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - HALF RATE SPEECH - VOICE ACTIVITY DETECTOR (VAD) FOR HALF RATE SPEECH TRAFFIC CHANNELS

European Telecommunications Standards Institute

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Table of Contents

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): VAD performance
Annex B (informative): Simplified block filtering
        operation
Annex C (informative): Pole frequency calculation
History

Abstract

Provides the Voice Activity Detector (VAD) to be used in the Discontinuous Transmission (DTX) as described in GSM 06.41 (ETS 300 581-5) [4].

General Product Information

Document Type Standard
Status Current
Publisher European Telecommunications Standards Institute
Committee SMG 2