Duplex narrowcasting operations for multipresent groupware avatars on mobile devices. (23rd November 2009)

• Record Type: Journal Article
• Authors: Cohen, Michael; Fernando, Owen Noel Newton; Duminduwardena, Uresh Chanaka; Kawaguchi, Makoto
• Is Part Of: International journal of wireless and mobile computing. Volume 3:Number 4(2009)
• Page Start: 280
• Page End: 287
• Publication Date: 2009-11-23
• Subjects: chatspace -- groupware -- MMORPG -- massively multiplayer online role-playing games -- mobile computing -- multipresence -- multiuser interface -- narrowcasting functions -- teleconferencing -- multipresent groupware avatars -- mobile devices; Mobile computing -- Periodicals; Wireless communication systems -- Periodicals; 004.6
• Languages: English
• ISSNs: 1741-1084

Abstract

The apparent paradoxes of multipresence, having avatars in multiple places simultaneously, are resolvable by an 'autofocus' feature, which uses reciprocity to project overlaid soundscapes and simulate the precedence effect to consolidate the display. We have developed an interface for narrowcasting functions for networked mobile devices deployed in a Collaborative Virtual Environment. Featuring multiple icons in a '2.5D' application, the interface can be used to control motion, sensitivity, and audibility of avatars in a teleconference. The interface is integrated with other clients through a 'servent' (server/client hybrid) HTTP?TCP/IP bridge, interoperating with a heterogeneous groupware suite including stereographic panoramic browsers and spatial audio backends and speaker arrays.