Misplaced Pages

G.723

Extensions of Recommendation G.721 adaptive differential pulse code modulation to 24 and 40 kbit/s for digital circuit multiplication equipment application
Status	Withdrawn
Latest version	(11/88) November 1988
Organization	ITU-T
Base standards	G.721
Related standards	G.726
Domain	audio compression
License	Freely available
Website	https://www.itu.int/rec/T-REC-G.723

G.723 is an ITU-T standard speech codec using extensions of G.721 providing voice quality covering 300 Hz to 3400 Hz using Adaptive Differential Pulse Code Modulation (ADPCM) to 24 and 40 kbit/s for digital circuit multiplication equipment (DCME) applications. The standard G.723 is obsolete and has been superseded by G.726.

Note that this is a completely different codec from G.723.1.

See also

• List of codecs
• G.723 – Extensions of Recommendation G.721 adaptive differential pulse code modulation to 24 and 40 kbit/s for digital circuit multiplication equipment application. The content of the 1988 edition of ITU-T G.723 is now covered by ITU-T G.726.
• G.723.1 – Dual rate speech coder for multimedia communications transmitting at 5.3 and 6.3 kbit/s
• G.726 – 40, 32, 24, 16 kbit/s Adaptive Differential Pulse Code Modulation (ADPCM). Corresponding ANSI-C code is available in the G.726 module of the ITU-T G.191 Software Tools Library.

External links

• ITU-T page of G.723

References

1. "G.723: Extensions of Recommendation G.721 adaptive differential pulse code modulation to 24 and 40 kbit/s for digital circuit multiplication equipment application". www.itu.int. Archived from the original on 2021-06-13. Retrieved 2021-06-13.

• Audio codecs
• Speech codecs
• ITU-T recommendations
• ITU-T G Series Recommendations