Video Conferencing System

What is Video Conferencing System ????

VIDEO CONFERENCING SYSTEM

Video conferencing is a technology that allows users in different locations to hold face-to-face meetings without having to move to a single location together. This technology is particularly convenient for business users in different cities or even different countries because it saves the time, expense and hassle associated with business travel. Uses for video conferencing include holding routine meetings,negotiating business deals and interviewing job candidates.

Video conferencing refers to conducting a video conference or video teleconference in which two or more sets of hardware and software interact while simultaneously transmitting and receiving video and audio signals from two or more geographic locations. Video conferencing may also involve sharing documents, various presentation materials, whiteboards, flip charts and similar group presentation visual aids. A tele presence system is most often used at the corporate or enterprise level and represents high-end video conferencing systems. Video conferencing is differentiated from video phone calls, which serve individuals as opposed to a conference. Video conferencing is also known as online video conferencing and PC video conferencing.

Video Conferencing System description as below in video : -  

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Different type of Video Conferencing System :-

1. Telepresence Video Conferencing System

Telepresence is designed to host a meeting as closely as possible. Even if the participants are not in the same room physically, the set-up is done in a way easily. Large screens are used and cameras are positioned at eye level. The result is a video conference set-up that appears as if all the participants are sitting in the same room and around the same table.

2. Integrated Video Conferencing System

Integrated video conferencing systems are designed generally for group video conferencing where there's a centralized location for the equipment. It include both the hardware and codec. All the main camera, displays and other peripheral videos are mounted in the main conference location. Integrated video conferencing systems are typically ideal for boardroom and classroom conferences.

 

3. Desktop Video Conferencing System

As an important one of types of video conferencing systems, desktop video conferencing system is very popular with people on-the-go and typical office workers. Within this option there are two choices available: a software client on your desktop or a hardware codec that doubles as your computer monitor. By using this type of set-up, the video conferencing system is brought right into your personal computer while still pulling off a full-motion conference.

4. Service-based Video Conferencing System

For serviced-based systems, the provider, which often is a telecom carrier, handles majority of the control when it comes to the network set-up. This means less work on your end. You just pay for the solution and your provider manages it for you making more convenient especially if you don't want to bother with the technicalities.

5. Codec

This alternative is the most like a room-based video conferencing framework in that it utilizes an outside display, camera and microphone, which is the same as does a framework for your meeting room. It is the best decision for someone who will utilize a whiteboard in his or her office who need to collaborate with a physical protest or some else in the room or who likes to stroll about the space while on a call. The space among you and the codec enables the flexibility to utilize the space in your office. This alternatives ranges in cost from $1500 to $8000 in addition to yearly charges for authorizing and upkeep.

Video Conference Basics Components of a Complete Video 
Conferencing System:  

(Camera, Display, Codec and Audio)

Video conferencing is the most sensible collaboration substitute to face-to-face meetings. If your company is thinking of implementing enterprise-level video conferencing, read this quick guide to the basic components necessary for the setup.

1. Camera

Companies need more than just the usual USB camera commonly used in web conferencing systems; they need high-definition primary conferencing cameras with advanced features such as (a) remote control pan and (b) zoom and tilt features. Secondary, specialized, and document cameras may also be used in conjunction with video conferencing to convey information whose clarity needs to be preserved, such as in the case of education sectors and in medical applications. High-definition (HD) cameras are usually preferred, as they offer the highest resolutions and the largest images.

2. Video Display

The most common displays are (a) LCD or HD Plasma Display, and (b) LCD/DLP Projector / XGA PC Type Display. Video conferencing systems may use more than one display option. Fact, many enterprise-level collaboration systems and large-venue video conferencing systems have several display tools that present different endpoints and data all together. The most preferred video displays are high-definition displays between 720p and 1080i / 1080p, as they provide the best resolution and allow about 20 percent more viewing area than standard / traditional definition display devices.

3. Video Conferencing Codec Unit

Often called the “heart and the brain” of the video conferencing system, the CODEC (also called the coder-decoder) takes the audio and video from the microphone and the camera and then compresses it, transmits it via an IP network, and decompresses (expands) the incoming audio and video signal or viewing on the video display device.

4. Microphone / Audio Sub-System

Basic enterprise-level video conferencing and collaboration systems use analog microphone pods, which are optimal for the use of a small group. In intermediate video collaboration systems, there is usually a conference phone – gated “array” of digital microphones – which are designed to run on integrated software. This software enhances the system’s audio capabilities. If the video conferencing is applied to larger rooms / venues, there needs to be an independent cancellation system for audio echo, and many microphones are usually connected to the integrated collaboration system to help facilitate large group interaction.

5. Other Equipment

Video conferencing equipment should be neatly organized is a cart designed especially for housing the collaboration systems and the ancillary devices. The flat panel display, camera, and codec are usually placed on top, and other equipment (PC, surges suppressor, DVR, switcher, etc.) are properly stored in the cabinet below. It is also a good idea to invest in diffuse directional lighting, as the usual fluorescent lighting found in most offices tends to be inefficient in video conferencing environments. Fluorescent and other overhead lighting are usually poorly located and do not have the adequate intensity nor the correct color temperature. Poorly located lighting can cast unwanted shadows on participants face and they will then appear dark and blurry at the far –end. It will create a lousy video conferencing experience for both local and far-ends parties.

Correct lighting used for video conferencing will also help the video display systems perform better, and likewise allow high-definition cameras – which require more light – to reach optimum potential.

Video Conferencing System block diagram  :-

Video conferencing enables dynamic real-time collaboration through video and audio communication between parties. “Telepresence” is a related term that implies advanced technology that is fast enough to eliminate perceivable delays. It also includes excellent sound quality as well as large, high resolution screens. This allows remote participants attending a conference to seem to actually be in the room. The great benefit is that travel is eliminated, yet much of the nuance of in-person communication is preserved. Mouser plays a role in advancing technology by providing you with the newest products for advanced designs.

Advantages of Video Conferencing System :-

1. No time constraint: Video conferencing can be conducted at any time of the day. Time differences between countries do not matter when people use this method of communication because they do not actually need to travel to attend meetings.

2. Dramatic travel saving: Not only is video conferencing a direct replacement for many in-person business trip, but also there is virtually no cost for people to be involved in a virtual meeting, you can easily bring the right them together.

3. Easy communication: People can use video conferencing to communicate with anyone with HD video and other collaboration tools such as whiteboard, text exchange, file sharing, media sharing, screen sharing, remote control, electronic voting, conference recording etc.

4. Increased productivity: By eliminating time and district barriers, meetings can be hold anytime, anywhere with anyone. In this way, meetings are shorter and more effective. And also with the rich collaboration tools, decisions can be made faster.

Disadvantages of Video Conferencing System :-

1. Lack of personal interaction: Some meetings require a personal touch to be successful. Video conferencing can be less personal than meeting face to face, and it can be possible to miss out on vital body language when you’re struggling with a pixelated image or stuttering video.

2.Technical problems: The major disadvantages are the technical difficulties associated with smooth transmissions that could result from software, hardware or network failure. Remote connections are sometimes known to be hampered by environmental changes. On some occasions, the absence of technical support personnel creates difficulty for participants who are unfamiliar with the videoconferencing technological concepts.

3. International time zones: One of the very real disadvantages of using video conferencing is that if you communicate regularly with people in other countries you will be available at different times to them. Unfortunately without the skills of a time lord there’s not really a practical way to overcome this.

4. High cost of setup: Setting up video conferencing in an office can be a bit expensive for small-sized companies. Simple features can fit into the budget, but if advanced features are required, then a substantial amount of expenditure must be done.

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