ETS 300 728 : 20001
Current
The latest, up-to-date edition.
DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - COMFORT NOISE ASPECTS FOR ENHANCED FULL RATE (EFR) SPEECH TRAFFIC CHANNELS
Hardcopy , PDF
English
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Foreword
1 Scope
2 Normative references
3 Definitions, symbols and abbreviations
3.1 Definitions
3.2 Symbols
3.3 Abbreviations
4 General
5 Functions on the transmit (TX) side
5.1 Background acoustic noise evaluation
5.2 Modification of the speech encoding
algorithm during SID frame generation
5.3 SID-frame encoding
6 Functions on the receive (RX) side
6.1 Averaging and decoding of the LP and
fixed codebook gain parameters
6.2 Comfort noise generation and updating
7 Computational details
History
Defines the correct operation of the background acoustic noise evaluation, noise parameter encoding/decoding and comfort noise generation in Mobile Stations (MSs) and Base Station Systems (BSSs) during Discontinuous Transmission (DTX) on enhanced full rate speech traffic channels. The requirements described in this ETS are mandatory for implementation in all GSM MSs capable of supporting the enhanced full rate speech traffic channel. The receiver requirements are mandatory for implementation in all GSM BSSs capable of supporting the enhanced full rate speech traffic channel, the transmitter requirements only for those where downlink DTX will be used.
| Committee |
SMG 2
|
| DocumentType |
Standard
|
| Pages |
19
|
| PublisherName |
European Telecommunications Standards Institute
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| PN ETS 300 728 : 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 |
| TS 101 318 : 1.1.1 | TELECOMMUNICATIONS AND INTERNET PROTOCOL HARMONIZATION OVER NETWORKS (TIPHON) - USING GSM SPEECH CODECS WITHIN ITU-T RECOMMENDATION H.323 |
| 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 300 727 : 20001 | DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - SUBSTITUTION AND MUTING OF LOST FRAMES FOR ENHANCED FULL RATE (EFR) SPEECH TRAFFIC CHANNELS |
| 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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