ITU-T G.723 
Fixed-Point LBC Speech Coder
by France Telecom CNET

Software Overview

ITU-T speech coder
Designed for a very-low-bitrate transmission in visual telephony.
Delay of coder: 37.5 ms

Features and Benefits

•	Data rate: 5.3/6.3 kbps
•	Quality: Good quality for speech (same as G.726)
•	Sampling rate: 8 kHz

Processor and System Specifications

•	Devices supported: TMS320C54x
•	Algorithm category: Vocoder
•	Coder required: 
Program memory: 6.5 kwords (program) + 8.5 kwords (table external RAM)
Data memory: 1 kword
Processor loading: 
For both rates: 16 MIPS
•	Decoder required: 
Program memory: 3 kwords (program) 
+ 8.5 kwords (table external RAM)
Data memory: 0.5 kwords
Processor loading: 
For both rates: 1.4 MIPS

Company Background and Contact Information

Contact: 	Jean-Pierre PETIT
		France Telecom/CNET
		Technopole Anticipa 
		2 Avenue Pierre MARZIN
		22307 LANNION-CEDEX
		33-96-05-39-41
		Fax:  -33-96-05-13-16
		e-mail: petitjp@lannion.cnet.fr