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G.728
Last modified: Wednesday, May 07, 2008
An International Telecommunications Union (ITU-T) standard for
for audio (speech) compression and
decompression that is used in digital transmission systems, and in particular,
used for the coding of analog signals into digital signals.
G.728 is an ITU-T speech coding standard that uses Low
Delay Code Excited Linear Prediction (LD-CELP) operating at 16 kbit/s
compression at a sampling rate of 8,000 samples per second. The algorithmic
coding delay of G.728 is 0.625 ms. G.728, when compared to
G.726 delivers
close to the same voice quality but uses only one-half the bandwidth.
See G.7xx for more information on how these standards are used in telephony
networks.
See also LD-CELP.
The International Telecommunication Union The International Telecommunication Union is an international organization within which governments and the private sector coordinate global telecom networks and services. This home page offers numerous links to highlights and current topics, standardization, radiocommunication, telecommunication, and general secretariat sectors.
