![]() This form of echo is created by the acoustic properties of the areas where a VoP phone is used. The first, which we'll discuss below, is acoustic echo. In a broadband system architecture, two forms of echo cause problems for designers. To start our discussion, let's provide an overview of echo. Part 1 will focus on the basics of echo cancellation and acoustic echo canceller while part 2 will zero in on line echo cancellation techniques. In this two-part series, we'll explore the key echo cancellation elements/techniques that broadband designers need to worry about when developing VoP systems. In order to meet this requirement, dealing with echo is a must. In order to succeed, these data operators must deliver voice services with the same quality as existing landline networks. Now the challenge falls on broadband equipment developers implementing voice-over-packet (VoP) technology. And for years, equipment designers have turned to digital signal processing (DSP) and standalone board solutions as a means for curbing echo in carrier class equipment designs. Echo cancellation is a recurring problem in telecommunication and wireless networks.
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