The introduction of video conferencing: & basic benefits


Added: 22-01-2007
Author: Bob J. Valkovski
Category: Video Conference 		← Back | ↓ Related | Home →


Benefits of Video Conferencing

Video Conferencing equipment and software that allows users to see and hear one of them is contact.

Video conferencing allows you to take part in live audio / video presentations in your classroom, and through their collaboration. Calls can be made between 2 classrooms in the city, or between 2 classrooms in different parts of the world. Also possible for multipoint conferences occur, in which more than 2 schools take part in the call.

The live video conference has many advantages over other multimedia resources, such as video recordings or television presentations, but the main advantage is that they are interactive, which allows you to talk face to face with others in real time, but in a different area. It's nice to get the level of participation from the students.

Multipoint videoconferencing;

Simultaneous videoconferencing; between three or more points through the countryside may Multipoint Control Unit (MCU). This is the bridge interconnect calls from several sources (in the same way radio referred to the conference call). All parties call the network ID number of the MCU unit, or the MCU unit can also contact the parties will participate, respectively. There are MCU bridges for IP and ISDN-based videoconferencing;. MCU is a clean program, and the other is a combination of equipment and software. An MCU is a compliment to the number of simultaneous calls can get out address.

MCUs can be stand alone supply of equipment, or they can be incorporated into a dedicated TVC units.

Video Conferencing Technology

Using primary videoteleconference technology (VTC) in digital audio compression systems and video streams in real time.

There are basically two kinds of VTC systems:

Dedicated system requires all components packaged in a single material, size and quality of rural console controlled her video camera. This camera can be controlled by moving the horizontal and vertical directions (pan and Tilt, respectively) to image zoom, so-called PTZ camera. The console contains all electrical interfaces, the control computer, modem, and programs or facilities-based codecs. Omnidirectional Mikrofoner connected to the console, as well as TV and monitor speakers and / or video projectors. There are some who are dedicated VTC devices:

(a) VTC large group of non-portable, large, more expensive equipment used for large rooms and auditoriums. The use of compulsory practical PTZ cameras.

(b) small group VTC are non-portable or portable, smaller, less expensive equipment used by small meeeting space (eg, up to 10 people) and PTZ cameras are usually

(c) Individual VTC size portable devices, intended for single users, have a fixed camera, and integrated speakers mikrofoner console.

Add desktop system (board equipment, usually) to normal PC, transforming them into VTC devices. Mikrofoner various cameras can be used by the council, which has important infection Codec interface. Most desktop systems work only with the H.323 standard. Video conferences carried out via dispersed PCs are also known as e-meetings.



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