Table of Contents

Foreword
1 Scope
2 Normative references
3 Definitions and abbreviations
   3.1 Definitions
   3.2 Abbreviations
4 General
5 Half rate speech transcoding
6 Half rate Discontinuous Transmission (DTX)
7 Half rate Voice Activity Detection (VAD)
8 Half rate comfort noise insertion
9 Half rate lost speech frame substitution and muting
10 Half rate codec homing
History

Abstract

Gives an introduction to GSM 06.20 (ETS 300 969) [4], GSM 06.21 (ETS 300 970) [5], GSM 06.22 (ETS 300 971) [6], GSM 06.41 (ETS 300 972) [7] and GSM 06.42 (ETS 300 973) [8] ETSs dealing with the speech processing functions in the half-rate channel of the GSM system.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	SMG 11
Supersedes	PRETS 300 966 : DEC 96