TI DSPS 3rd Party Listings: Telecommunication Algorithms: Network Echo Canceller

Digital Signal Processing Solutions Tools: Telecommunication Algorithms

Product Name:	Network Echo Canceller
Company Name:	D2 Technologies, Inc.
Features & Benefits:	Exceeds G.165 and Deutsche Bundespost specs Operates in fast or slow adapt, and fixed modes Non-linear processing (NLP) and comfort noise Programmable echo tails from 8 msec to 96 msec Min Echo Return Loss (ERL) of 0, 3 or 6 dB
TMS320 Devices Supported:	C2xx C5x C54x C6x
Data Rate (kbps):	8
Program Memory (k word):	4.7
Data Memory (k word):	1.6
Processor Loading (MIPS):	4.8
Target Platform:
Hardware Requirements:	None.
Word Size:
Clock Rate:
Group Delays:
Technical Support/Training Available:	YES 90 day warranty period plus optional design consultation, algorithm development, system integration and training services available.
Overview:	D2's Network Echo Canceller voice processing algorithm module is an ITU-T G.165 and Deutsche Bundespost compliant network echo canceller that operates in fast adapt, slow adapt, and fixed modes.
Ideal Performance:	Integrated with other VP Open modules and tested for concurrent real-time processing on multiple voice ports.
Algorithm Verification:	Standard G.165 and Deutsche Bundespost test suites for tails of 32-96 msec: steady state residual echo with and without NLP, convergence test with and without NLP, convergence in the presence of near end noise, halting of convergence by double-talk, halting of convergence by large continuous background noise, long tails test, leak rate test, infinite return loss convergence test, tone disable and stability test, and NLP, VP Open interface validation.
Availability:	C5x, C54x - Available, C2xx, C6x - Consult D2
Operating System Used:	VP Open specifications
Tools Supported By:	TI White Mountain DSP Research Go DSP National Instruments
Company Information:	D2 Technologies, Inc. 104 West Anapamu Street Santa Barbara CA 93101 USA Tel: 805-564-3424 Fax: 805-966-2144 e-mail: sales@d2tech.com www: http://www.d2tech.com
	Voice processing solutions provider for computer telephony. Over 20 years of industry experience in algorithms, DSP implementation, real-time systems, and telephony system integration.