Abstract:
This paper provides an introduction into the basics of echo cancellation. The
paper is kept general but it emphasizes on the emerging Voice over IP (VoIP)
market. However, most aspects can also applied to Asynchronous Transfer
Mode (ATM) or wireless networks. This paper shows why and where echo
cancellation is required, what echo is, and what causes it. It also gives an
overview of the standards involved in echo cancellation. The SIDECTM, Infineon’s
digital echo canceller, meets the requirements of the VoIP market. This paper
shows how it can be integrated into a VoIP system and the advantages the
solution offers.
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1 comments:
Echo cancellation basically includes two methods :-
first recognizing the originally transmitted signal that re-appears, with some delay, in the transmitted or received signal.
secondly you have to choose the best method for designing that .some of methods are echo suppressors or echo cancellers.
you have done a great job regarding echo cancellation.The information in these ppt are very informative.
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