Continued....
What is Video Conferencing: Video
conferencing is the integration of video, audio and peripherals
to enable two or more people to communicate simultaneously over
some type of telecommunications lines. By video conferencing you
are transmitting synchronized images and verbal communications
between two or more locations in lieu of them being in the same
room.
Video conferencing ingredients:
The main ingredients of successful video conferencing are video
cameras, microphones, appropriate computer software and computer
equipment and peripherals that will integrate with the
transmission lines to relay the information.
How video conferencing works: The
analog information recorded by the microphones and cameras is
broken down into discreet units, translating it to ones and
zeros. A Codec encodes the information to a digital signal that
can then be transmitted to a codec at the other end, which will
retranslate these digital signals back into analog video images
and audio sounds.
In the earlier days, video
conferencing was very much expensive than today. Some time back
video conferencing was used by T1, ATM and ISDN lines. These all
process were very costly for video conferencing. Since internet
is very cheap and it is a very good medium for video
conferencing. The TCP/IP connections of the Internet are much
less expensive and can carry large quantities of information for
video conferencing, including video packets for conferencing,
relatively easily. Because of this, video conferencing has
become much more prevalent in small businesses and in desktop
packages that can be set up with software for
computer-to-computer networking.