G.722 is a ITU-T standard 7 kHz wideband speech 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).

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.

Other ITU-T 7 kHz wideband codecs include G.722.1 and G.722.2. These codecs are not variants of G.722 and they use different patented compression technologies. G.722.1 is based on Siren codecs and offers lower bit-rate compressions. A more recent G.722.2, also known as AMR-WB ("Adaptive Multirate Wideband") is based on ACELP and offers even lower bit-rate compressions, as well as the ability to quickly adapt to varying compressions as the network topography mutates. In the latter case, bandwidth is automatically conserved when network congestion is high. When congestion returns to a normal level, a lower-compression, higher-quality bitrate is restored.

Seongha Jeong (정성하) (colloquially: Sungha Jung) (born 2 September 1996) is a South Korean professional acoustic finger-style guitarist who has risen to fame on YouTube and other sites. As of 2012, his channel had over 17 million views, with his videos getting a total of over 454 million views, and also over 726,000 subscribers.

Seongha typically takes three days to learn and practice a new piece, and video-record it for upload onto YouTube. His genre selection is rather broad, as he learns and plays many pieces that are playable on guitar, therefore consequently spread across numerous genres.

Seongha has won 13 awards on YouTube, including 6 "#1" awards. Also on YouTube, Seongha has 523 videos with over one million views. Seongha's video with the most views is the one which shows him playing the theme from "Pirates Of The Caribbean".

In 2010, he was featured on Narsha's solo album "Narsha" for the song "I'm in Love" Seongha has composed 18 pieces as of February 2011, two of which are featured in his debut album, "Perfect Blue". He released his second album, "Irony", on 21 September 2011.

Melissa Arnette "Missy" Elliott (born July 1, 1971) is an American rapper, singer-songwriter, record producer, dancer and actress. A five-time Grammy Award winner, Elliott, with record sales of over seven million in the United States, is the only female rapper to have six albums certified platinum by the RIAA, including one double platinum for her 2002 album Under Construction. Elliott is known for a series of hits and diverse music videos, including "The Rain (Supa Dupa Fly)", "Hot Boyz", "Get Ur Freak On", "One Minute Man", "4 My People", "Work It", "Pass That Dutch", and "Lose Control". In addition, she has worked extensively as a songwriter and producer for other artists, both alone and with her fellow producer and childhood friend Timbaland, with whom she received her first production credit on R&B singer Ginuwine's 1996's album Ginuwine...the Bachelor.

Elliott was born on July 1, 1971, in Portsmouth, Virginia. She is the only child of mother Patricia, a power-company coordinator, and father Ronnie, a Marine. At the age of four in 1975, she wanted to be a performer, though she knew no one took her seriously, as she was always the class clown. While her father was a Marine, the family lived in Jacksonville, North Carolina, in a mobile home. Elliott enjoyed school for the friendships she formed and had little interest in school work, though an IQ test classified her above average and she was able to jump two years ahead of her class. This made her feel increasingly isolated, so she purposely failed all her classes, eventually returning to her age-appropriate class. When her father returned from the Marines, they moved back to Virginia, where they lived in a vermin-infested shack.