Customer Support: 131 242

  • There are no items in your cart
We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
Dismiss alert

TR 101 977 : 1.1.1

Current

Current

The latest, up-to-date edition.

TERRESTRIAL TRUNKED RADIO (TETRA); STUDY OF THE SUITABILITY OF THE GSM ADAPTIVE MULTI-RATE (AMR) SPEECH CODEC FOR USE IN TETRA

Available format(s)

Hardcopy , PDF

Language(s)

English

Intellectual Property Rights
Foreword
1 Scope
2 References
3 Definitions and abbreviations
   3.1 Definitions
   3.2 Abbreviations
4 General
   4.1 Work Requirements
   4.2 The Tasks
5 Initial Study of the TETRA Speech Codec
   5.1 TETRA Codec FEC
   5.2 PSQM or Peak-PSQM For Error Sensitivity?
6 PSQM Values for GSM AMR Codec
   6.1 4,75 kbit/s Mode
   6.2 5,15 kbit/s Mode
   6.3 5,9 kbit/s Mode
   6.4 6,7 kbit/s Mode
7 Initial FEC Bit Allocations for GSM AMR Codec
   7.1 4,75 kbit/s Mode
   7.2 5,15 kbit/s Mode
   7.3 5,9 kbit/s Mode
   7.4 6,7 kbit/s Mode
8 Coverage Performance of the FEC Schemes
   8.1 4,75 kbit/s Mode
   8.2 5,15 kbit/s Mode
   8.3 5,9 kbit/s Mode
   8.4 6,7 kbit/s Mode
   8.5 Performance of the Selected FEC Schemes
9 Results of expert listening tests for the TETRA
   and AMR codecs
   9.1 4,75 kbit/s Mode
   9.2 5,15 kbit/s Mode
   9.3 5,9 kbit/s Mode
   9.4 6,7 kbit/s Mode
10 Conclusions
Annex A: Software Description
      A.1 Soft-Bit Error Files
      A.2 Generic 'ccoder' and 'cdecoder' Routines
      A.3 Soft-Bit Error Injection Routine
      A.4 Script Files
History

Contains background information on the performance of four modes of the GSM Adaptive Multi-Rate (AMR) speech codec operating within the TETRA system.

Committee
TETRA 5
DocumentType
Standard
Pages
82
PublisherName
European Telecommunications Standards Institute
Status
Current

ETS 300 395-2 : 20002 TERRESTRIAL TRUNKED RADIO (TETRA); SPEECH CODEC FOR FULL RATE TRAFFIC CHANNEL; PART 2: TETRA CODEC

View more information
$105.89
Including GST where applicable

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.

Need help?
Call us on 131 242, then click here to start a Screen Sharing session
so we can help right away! Learn more