Title :
Adding voice to distributed games on the Internet
Author :
Bolot, Jean-Chrysostome ; Fosse-Parisis, Sacha
Author_Institution :
INRIA, Sophia Antipolis, France
fDate :
29 Mar-2 Apr 1998
Abstract :
Much of the work on distributed virtual environments (DVEs) has focused on efficient schemes and algorithms for the description and visual rendering of such environments. However, there has been comparatively little effort on senses other than sight, and in particular on live voice. This is surprising because adding voice to DVEs enhances the sense of immersion in the environment, and can in fact completely change the way entities interact. For example, adding voice in a distributed game impacts tactics, team building, cheating, etc. We examine issues related to adding voice between participants in DVEs. We consider in particular a special kind of DVE, namely distributed games over the Internet. We consider all stages of voice manipulation, including voice generation (with emphasis on echo cancellation), voice transmission (with emphasis on RTP and packetization), and voice restitution (with emphasis on spatial rendition and on synchronization between voice and visual cues). We also consider implementation issues, and illustrate these with the MiMaze game and the FreePhone audio tool, both developed at INRIA
Keywords :
Internet; distributed processing; echo suppression; games of skill; speech processing; speech synthesis; telephony; virtual reality; FreePhone audio tool; INRIA; Internet; MiMaze game; algorithms; distributed games; distributed virtual environments; echo cancellation; live voice; packet voice; spatial rendition; synchronization; visual cues; visual rendering; voice generation; voice manipulation; voice restitution; voice transmission; Bandwidth; Echo cancellers; IP networks; Internet; Military standards; Modems; Packet switching; Protocols; Virtual environment; Wide area networks;
Conference_Titel :
INFOCOM '98. Seventeenth Annual Joint Conference of the IEEE Computer and Communications Societies. Proceedings. IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-4383-2
DOI :
10.1109/INFCOM.1998.665065