Abstract

The rapid progress of both communication and processing technologies in recent years constitutes a challenging technological revolution, epitomized by the photographs sent by Voyager from Saturn.This revolution offers new opportunities for many avenues of technology. Real-time speech communication is one of them. This paper discusses the use of packet switching, the emerging computer communication technology, for online speech application.The paper reviews the computer communication technologies such as packet and circuit switching, datagrams, and virtual circuits. It mentions the voice encoding (vocoding) algorithms and their implementation and discusses the interaction of vocoding and packet-switching technology. It argues about the issues of network voice protocols and introduces applications of online speech.After describing the experience with packet speech, the paper concludes with several ideas about the future of the field.

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