MVIP—audio enabled multicast VNet

ABSTRACT

This paper presents a multicast approach to shared virtual worlds. A shared VRML world is described with integrated spatial audio in a freeware VRML browser. An implementation in Linux of multicast FreeWRL with the Robust Audio Tool (RAT) is presented. To support this audio-enabled multicast VRML prototype, MVIP (Multicast VRML Interchange Protocol) is implemented as a Java program using the services of the Real-Time Protocol (RTP) and accessing VRML via the External Authoring Interface (EAI).

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INDEX TERMS

Primary Classification:
  C. Computer Systems Organization
  C.2 COMPUTER-COMMUNICATION NETWORKS

Additional Classification:
  H. Information Systems
  H.5 INFORMATION INTERFACES AND PRESENTATION (I.7)

General Terms:
Experimentation, Theory

Keywords:
IP multicasting, MBone, distributed virtual environments, multi-user virtual reality, virtual reality markup language