Institute of Food and Agricultural Sciences


Audio Format
Standards
 
 
Audio Formats
 
   

Format

 Year
Approved		 Bit Rate
(kbps)		 Bandwidth
(kHz)		 H.320 H.323 H.324
 
G.711 1977 48,56,64 3 X X  
G.722 1988 48,56,64 7 X X  
G.728 1992 16 3 X X  
G.723.1 1995 5.3,6.3 3   X  
G.729 1995 8 3     X
G.729
Annex A		 1996 8 3     X
G.722.1 1999 24,32 7 X X  
G.722.1
Annex C		 2005 24,32,48 14 X X  
 
 
Term

Definition
   
H.320 Video and voice over ISDN
H.323 Video, voice and data over a IP
H.324 Video, voice and data over a PSTN (POTS)
   
ISDN Integrated Services Digital Network (digital telephone line)
PSTN Public Switched Telephone Network (analog telephone line)
POTS Plain Old Telephone Service (analog telephone line)
   
IP Internet Protocol (digital or analog network)
   

 

 
 

 Last updated on September 20, 2007
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From the notebook of Thomas Hintz
the AgriGator