Sunday, 2 October 2011

Video conferencing in its most basic form is the transmission of image (video) and speech(audio) back and forth between two or more physically separate locations this is accomplished through the use of cameras,(to capture and send video from your local endpoint) video displays (to display video received from remote endpoints) microphones( to capture and send audio from your local endpoint) and speakers (to play audio received from remote endpoints).
In understanding the role that video conferencing could play, consider two general situations.
1. Those where you are already able to communicate with someone who is not physically nearby, but you wish that communication could be richer.
2. Those where you wish to access or communicate to a location that may or may not be nearby but is limited by situational or physical constraints.
Distance education often comes to mind first when considering the former situation, but several other exciting types of communications can also be enhanced or extended. These included organizational and cross-organizational meetings counseling, foreign language and cultural exchanges, and tele-communicating. Communication is already occurring in each of these applications, but they could be made more compelling, more effective or less expensive via video conferencing . The introduction of video conferencing has enabled communication to restricted areas such as nuclear facilities, operating rooms and the space shuttle. It has been used to observe wildlife in their natural habited, to established interactive surveillance and security, and combined with micro-instrumentation, to observe inside the human body. Video conferencing can be point to point (between two endpoints),or multi-point (combining two or more endpoints into the same “conversation”).
A particularly exciting type of meeting that may be enhanced and expanded through the use of video conferencing is classroom introduction. In one case , remote participants may be additional students that the instructor must now accommodate in terms of instruction and try to integrate with any physically –present participants into one virtual student group . Remote participants should not feel that they are getting less out of the class then their physically-present counterparts and physically-present students should not feel that the presence of remote participant(s) may be additions to the instruction itself, such as expart speakers, or co-instructors.


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