Title :
Entropy coding of ITU G.728 speech parameters for low bit rate audiovisual communications
Author :
Eryurtlu, F. ; Atungsiri, S.A. ; Kondoz, A.M. ; Evans, B.G.
Author_Institution :
Centre for Satellite Eng. Res., Surrey Univ., Guildford, UK
fDate :
7/20/1995 12:00:00 AM
Abstract :
Entropy coding principles are applied to the 16 kbit/s ITU G.728 speech codec. It is shown that the average bit rate can be reduced to 14.5 kbit/s without a significant increase in the codec complexity. In very low bit rate audiovisual communication applications such as the videophone, the saved bits can be used to improve the output video quality
Keywords :
entropy codes; speech codecs; speech coding; videotelephony; 16 kbit/s; ITU G.728 speech parameters; average bit rate; codec complexity; entropy coding; low bit rate audiovisual communications; output video quality; speech codec; videophone;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950866
