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G.722
Sign in to saveG.722 is an ITU-T standard 7 kHz wideband audio codec operating at 48, 56 and 64 kbit/s. It was approved by ITU-T in November 1988. Technology of the codec is based on sub-band ADPCM (SB-ADPCM). The corresponding narrow-band codec based on the same technology is G.726.
In the Vinony graph
Within Vinony's link graph, G.722 is referenced by 259 other articles, and connects out to adaptive differential pulse-code modulation, ProRes 422 and data compression.
It sits within the topics Audio codecs, ITU-T G Series Recommendations and ITU-T recommendations.
Its subject is documented across 11 Wikipedia language editions.
Key facts
- Technology standard.title
- G.722
- Technology standard.long_name
- 7 kHz audio-coding within 64 kbit/s
- Technology standard.image
- Pcm.svg
- Technology standard.status
- In force
- Technology standard.year_started
- 1988
- Technology standard.version
- (09/12)
- Technology standard.version_date
- September 2012
- Technology standard.organization
- ITU-T
- Technology standard.base_standards
- G.711
- Technology standard.related_standards
- G.722.1, G.722.2, G.726
- Technology standard.domain
- audio compression
- Technology standard.license
- Freely available
- Technology standard.website
- https://www.itu.int/rec/T-REC-G.722
via Wikipedia infobox
~4 min read
Encyclopedic overview
6 sectionsContents
- Applications
- RTP encapsulation
- Licensing
- See also
- References
- External links
G.722 is an ITU-T standard 7 kHz wideband audio codec operating at 48, 56 and 64 kbit/s. It was approved by ITU-T in November 1988. Technology of the codec is based on sub-band ADPCM (SB-ADPCM). The corresponding narrow-band codec based on the same technology is G.726.
G.722 provides improved speech quality due to a wider speech bandwidth of 50–7000 Hz compared to narrowband speech coders like G.711 which in general are optimized for POTS wireline quality of 300–3400 Hz. G.722 sample audio data at a rate of 16 kHz (using 14 bits), double that of traditional telephony interfaces, which results in superior audio quality and clarity.
Excerpted from Wikipedia’s “G.722” article, available under the CC BY-SA 4.0 licence.