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Tele-Communication (Telecom) Terms Glossary and Dictionary
G.729
G.729 is an audio data compression algorithm for voice that compresses voice audio in chunks of 10 milliseconds. G.729 does coding of speech at 8 kbit/s using Conjugate-Structure Algebraic-Code-Excited Linear-Prediction(CS-ACELP). G.729 is mostly used in Voice over IP (VoIP) applications for its low bandwidth requirement. Standard G.729 operates at 8 kbit/s, but there are extensions, which provide also 6.4 kbit/s and 11.8 kbit/s rates for marginally worse and better speech quality respectively. Also very common is G.729a which is compatible with G.729, but requires less computation.
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