Difference between audio and video conferencing?
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Video ConferencingVideo is used for content that must be presented utilizing visuals such as video tape, slides, charts, graphs, drawings and demonstrations. Since video is a more expensive medium to use because of the cost of wideband transmission, it should be used selectively when the content requires it. All content does not need to be presented over video. After primary information has been presented on video, some interaction may take place if there is time left in the class period and if the instructor has planned for interaction. Audio ConferencingTo continue the discussion during the next regular class period, the class can meet via audio conference bridge. The equipment required for this is an audio conference bridge with enough ports on it to accommodate the size of the class. During the audio conference the instructor can present new material that does not require video for presentation, answer questions, and set up and interaction between students so that they are able to share information and experiences.
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