G.723
{{short description|ITU-T Recommendation}}
{{Infobox technology standard
| title = G.723
| long_name = Extensions of Recommendation G.721 adaptive differential pulse code modulation to 24 and 40 kbit/s for digital circuit multiplication equipment application
| image = Pcm.svg
| caption =
| status = Withdrawn
| year_started =
| version = (11/88)
| version_date = November 1988
| preview =
| preview_date =
| organization = ITU-T
| committee =
| base_standards = G.721
| related_standards = G.726
| abbreviation =
| 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 The standard G.723 is obsolete and has been superseded by G.726.{{Cite web|title=G.723: Extensions of Recommendation G.721 adaptive differential pulse code modulation to 24 and 40 kbit/s for digital circuit multiplication equipment application|url=https://www.itu.int/rec/T-REC-G.723/|url-status=live|archive-url=https://web.archive.org/web/20210613170908/https://www.itu.int/rec/T-REC-G.723/|archive-date=2021-06-13|access-date=2021-06-13|website=www.itu.int}}
Note that this is a completely different codec from G.723.1.
See also
- List of codecs
- G.723 [withdrawn] – Extensions of Recommendation G.721 adaptive differential pulse code modulation to 24 and 40 kbit/s for digital circuit multiplication equipment application.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
- [http://www.itu.int/rec/recommendation.asp?type=folders&lang=e&parent=T-REC-G.723 ITU-T page of G.723]
{{Compression formats|state=uncollapsed}}
{{ITU standards}}