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A conventional approach to multiparty videoeonferencing is to support a four way meeting using a Picture-in-aPicture (PIP) device, In this approach, each remote participant’s image is placed in one quadrant of the screen of a single monitor. This common view is then distributed to each person. In addition, the audio from eaeh participant is combined, and all voices emanate from a single loudspeaker.
Sellen et al. (Wed,) studied this question.
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