Audio and video signals are analog signals by nature. Those signals must be converted to digital form before they are transmitted through computer networks. Transfer of real-time audio and video information requires a large network bandwidth and low data latency. In this chapter we provide an inside look of the theories of audio and video digitalization and real-time network technology. We also introduce two real-time applications: telephony and videoconferencing.
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Last modified: Sat Dec 7 1996