4 SB ADPCM, 
High-Quality and Low-Delay Audio Coder
by France Telecom CNET

Software Overview

Half-duplex stereophonic audio codec, low delay (< 2.5 ms)

Features and Benefits

•	Data rate: 128/120/112 kbps
•	Quality: FM radio broadcast quality
•	Sampling rate: 32 kHz

Processor and System Specifications

•	Devices supported: TMS320C3x
•	Algorithm category: Audio coder (high quality, low delay)
•	Coder required: 
Program memory: 4.3 kwords
Data memory: 1.4 kwords
Processor loading: 24 MIPS
•	Decoder for two channels (left and right) required:
Program memory: 4.8 kwords
Data memory: 1.1 kwords
Processor loading: 20 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