video conferencing in fact cover a range of technologies in a variety of situations, often not only video and audio, which is transmitted, but also data, enabling collaboration though shared applications. All this means that a sufficient bandwidth, the network is the critical factor of success.
Videoconferencing can ...
* One-on-one, and point of communication known point, usually with the fullA two-way audio and video.
* One-to-many audio and video transmission from the main site, where other sites may send the audio to be in this situation. For example, in a situation of class, students can ask questions.
* Many-to-many communications, known as Multi-Point offers audio and video between more than two pages. In most multi-point a single site in a conference can be seen at the time, alternating between sites with manual or vocalactive (ie, the strongest point of the screen).
Physically, the most common scenarios of video conferencing are:
* Desktop video conferencing - usually a small camera monitor is located on top of the PC or workstation. The video itself is usually displayed in a small, shared applications, such as a shared whiteboard are often used.
* Systems Studio - studio is specially equipped for video conferencing one. This is normallyone or more cameras, microphones, one or more large monitors, and possibly other equipment such as overhead camera to display the document. Usually used for more formal meetings
In practice, a "study" is not a dedicated room, but a standard seminar room with portable devices that can be created, if necessary.
Bandwidth and compression ...
The rate of transmission bandwidth or the amount of information that can be transmitted per second. The higher the bandwidth, thebetter quality of signal can be transmitted. Audio and video signals, ie, time must be sent for a videoconference in real time, much information must be sent every second, a very high bandwidth. For example, a "true color" image need 24-bit (3 bytes) per pixel. A frame may be of 640x480 pixels, over 7 million bits. For full-motion video, images, the second is the updated 25 times per minute. This contributes to more than 184 million bits per second.It is not realistically possible to transmit this amount of information, and your PC certainly could not receive it at this rate. Therefore for digital video some form of compression is required. The type and degree of compression used varies from system to system. It is interesting to note that for most uses, we are more tolerant of poor video than poor audio, and so some systems concentrate on providing consistently good audio.
How To Get The Right Bandwidth To Meet Your Needs...
Don't take a chance at guessing what bandwidth you'll need...or in selecting the provider for that bandwidth. You may need a fractional, full, integrated, or bonded T1, DS3, or OC3 network depending on many factors. Solutions offered by providers will vary by cost, Quality of Service (QoS), and Service Level Agreement (SLA). I strongly recommend you use the services of an independant Telecommunications Consultant to help you assess your needs and find the provider who best meets Their needs. For free impartial advice .... and real-time rate quotes from different suppliers, in-depth research and negotiations with suppliers on your own .... I recommend using the freedom of communication of Fire.
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