Gain Variation for 
Hands-Free Situation (for 'C5x)
by France Telecom CNET

Software Overview

Algorithm developed by the CNET for hands-free telephone.
The algorithm analyzes the way of speech and reduces the gain on the other way to avoid echo and 
larsen.

Features and Benefits

•	Sampling rate: 8 kHz or 16 kHz
•	Quality: Good quality for classic hands-free telephone

Processor and System Specifications

•	Devices supported: TMS320C5x
•	Algorithm category: Audio
•	Required: 
Program memory: 0.8 kwords
Data memory: 0.1 kwords for one coder/decoder
Processor loading: 0.7 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