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G.727 : 5-, 4-, 3- and 2-bit/sample embedded adaptive differential pulse code modulation (ADPCM)

Recommendation G.727

In force components
Number
Title Status
G.727 (12/90)
 
5-, 4-, 3- and 2-bit/sample embedded adaptive differential pulse code modulation (ADPCM)  
Corresponding ANSI-C code is available in the G.727 module of the ITU-T G.191 Software Tools Library
In force
G.727 (1990) Corrigendum 1 (05/05)
 
Correction to Annex A: Extensions of Recommendation G.727 for use with uniform-quantized input and output  
In force
G.727 Annex A (11/94)
 
Extensions of Recommendation G.727 for use with uniform-quantized input and output   In force
G.727 Appendix I (03/91)
 
Digital test sequences for the verification of the G.727 5-, 4-, 3- and 2-bit/sample embedded ADPCM algorithm  
This document corresponds to G.727 Appendix I. It includes 6 diskettes containing digital test sequences for the verification of the G.727 embedded ADPCM codec implementations. The document reproduces the user guide published in the CCITT collective letter No. 12/XV (1991)
In force
G.727 Appendix II (05/94)
 
Comparison of ADPCM algorithms  
This Appendix is published with the double number G.726 App. III and G.727 App. II
In force

 

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Updated : 2011.03.24