In order to support cooperative work in enterprise environment, voice tool should provide flexible floor control mode. Because mixed audio is not clear in existing voice tools, they have freezing floor control mode only where members talk by turns which limits the free discussing among group. In the paper, a new mixed audio algorithm, which improves voice quality, adopted by voice tool ENVoice (Enterprise Network Voice tool) is provided. It is very important to support cooperative work.
Dommel H P, Garcia-Luna-Aceves J J. Floor control for multimedia conferencing and collaboration[J].Multimedia Systems.1997, 5(1):23-38[2]Hindmarsh J.[J].Fraser M, Heath C, Benford S, Greenhalgh C. Fragmented interaction: establishing mutual orientation in virtual environments. CSCW98, Seattle, WA, USA.1998,:-[3]Rodden T R. Populating the application: a model of awareness for cooperative applications.CSCW96, Boston, 1996: 87-96.[4]Radenkovic M, Greenhalgh C, Benford S. A scaleable audio service to support many simultaneous speakers, www.crg.cs.nott.ac.uk/research/projects/nait/, 2002.[5]Gonzlez A J.[J].Hussein A W. Audio mixing for interactive multimedia communications. JCIS98,North Carolina.1998,:-