G.723

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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 The standard G.723 is obsolete and has been superseded by G.726.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[edit]

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G.723 [withdrawn] – Extensions of Recommendation G.721 adaptive differential pulse code modulation to 24 and 40 kbit/s for digital circuit multiplication equipment application.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[edit]

ITU-T page of G.723

Multimedia compression and container formats

Video
compression

ISO/IEC	MJPEG Motion JPEG 2000 MPEG-1 MPEG-2 Part 2 MPEG-4 Part 2/ASP Part 10/AVC MPEG-H Part 2/HEVC

ITU-T	H.120 H.261 H.262 H.263 H.264 H.265

Others	Apple Video AVS Bink CineForm Cinepak Daala Dirac DV DVI FFV1 Huffyuv Indeo Microsoft Video 1 MSU Lossless Lagarith OMS Video Pixlet ProRes 422 ProRes 4444 QuickTime Animation Graphics RealVideo RTVideo SheerVideo Smacker Sorenson Video, Spark Theora VC-1 VC-2 VC-3 VP3 VP6 VP7 VP8 VP9 WMV XEB YULS

Audio
compression

ISO/IEC	MPEG-1 Layer III (MP3) MPEG-1 Layer II Multichannel MPEG-1 Layer I AAC HE-AAC AAC-LD MPEG Surround MPEG-4 ALS MPEG-4 SLS MPEG-4 DST MPEG-4 HVXC MPEG-4 CELP MPEG-D USAC MPEG-H 3D Audio

ITU-T	G.711 G.718 G.719 G.722 G.722.1 G.722.2 G.723 G.723.1 G.726 G.728 G.729 G.729.1

Others	ACELP AC-3 AMR AMR-WB AMR-WB+ ALAC Asao ATRAC CELT Codec2 DRA DTS EVRC EVRC-B FLAC GSM-HR GSM-FR GSM-EFR iLBC iSAC Monkey's Audio TTA True Audio MT9 A-law µ-law Musepack OptimFROG Opus OSQ QCELP RCELP RealAudio RTAudio SD2 SHN SILK Siren SMV Speex SVOPC TwinVQ VMR-WB Vorbis VSELP WavPack WMA

Image
compression

IEC, ISO, ITU-T	CCITT Group 4 JPEG JPEG 2000 JPEG XR Lossless JPEG JBIG JBIG2 PNG TIFF/EP TIFF/IT HEVC

Others	APNG DjVu EXR GIF ICER MNG PGF QTVR TIFF WBMP WebP

ISO/IEC	MPEG-PS MPEG-TS ISO base media file format MPEG-4 Part 14 Motion JPEG 2000 MPEG-21 Part 9 MPEG media transport

ITU-T	H.222.0 T.802

Others	3GP and 3G2 AMV ASF AIFF AVI AU BPG Bink Smacker BMP DivX Media Format EVO Flash Video GXF IFF M2TS Matroska WebM MXF Ogg QuickTime File Format RatDVD RealMedia RIFF WAV MOD and TOD VOB, IFO and BUP

See Compression methods for methods and Compression software for codecs

v t e ITU recommendations (standards)

Lists: List of ITU-T V-series recommendations List of ITU letter codes Categories: Category:ITU-R recommendations Category:ITU-T recommendations

G series (ITU-T)	G.114 G.165 G.703 G.704 G.706 G.707 G.709 G.711 G.718 G.719 G.722 G.722.1 G.722.2 G.729.1 G.723 G.723.1 G.726 G.728 G.729 G.783 G.798 G.806 G.811 G.983 G.984 G.987 G.988 G.991.1 G.991.2 G.992.1 G.992.2 G.992.3 Annex J Annex L G.992.4 G.992.5 Annex M G.993.1 G.993.2 G.7041 G.7042 G.7043 G.8262 G.9700 / G.9701 G.9960 G.9970 G.9972

H series (ITU-T)	H.222.0 H.225.0 H.235 H.239 H.241 H.245 H.248 H.261 H.262/MPEG-2 Part 2 H.263 H.264/MPEG-4 AVC H.265/MPEG-H HEVC H.320 H.323 H.323 Gatekeeper H.324 H.450

V series (ITU-T)	V.10 V.11 V.21 V.22 V.23 V.24 V.61 V.70 V.90 V.92

ITU-R	ITU-R 468 noise weighting ITU-R BS.1534-1 ITU-R BT.1304 ITU-R BT.470-6 ITU-R BT.470-7 ITU-R BT.601 ITU-R BT.709 ITU-R BT.2020

See also: All articles beginning with "ITU"

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