videoconferencing basics

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Slide 1: 

By Mathew Joseph S1 MBA BMIM-Cochin VIDEOCONFERENCING

Videoconferencing – What Is It? : 

Videoconferencing – What Is It? “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.”

Videoconferencing Components : 

Videoconferencing Components 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) Speakers (to play audio received from remote endpoints)

MODES OF VIDEO CONFERENCING : 

MODES OF VIDEO CONFERENCING Point-to-Point A videoconference that connects two locations Multi-point A videoconference that connects more than two locations through a Multi- point Control Unit (MCU)

Technologies Involved : 

Technologies Involved Video and Audio signal acquisition. Data Communication. Display and reproduction of transmitted signal.

Types of Video Conferencing : 

Types of Video Conferencing Dedicated Video Conferencing Suites Special hardware required Dedicated Communication links such as ISDN Drawbacks :- Costly Desktop Video Conferencing Webcams & Multimedia Phones required Internet Connection that allows multimedia communication Drawbacks :- Bandwidth & Proxy limitations Mobile Video Conferencing Just a Mobile with 3G services Drawbacks:- Low quality

Requirements : 

Requirements Installed Webcam, Head-Phones Any web-browser with flash player installed. Internet connection for connecting Video Server User credentials for connecting the server.

Video Quality Parameters : 

Video Quality Parameters Frame Rate: This parameters define how many frames are displayed in one second. Frame Resolution: Dimensions of each frame. Frame Quality: Compression of each frame. Bitrate: Supported on specific Video Formats

Bandwidth & Video Quality - Relation : 

Bandwidth & Video Quality - Relation Bandwidth also known as bit rate, is rate of data transfer measured in bits per second. Higher the Video Quality we prefer, higher bandwidth is required. Video Quality has to be adjusted to meet the current bandwidth available. Prefers bandwidth of 512kbps at client.

Benefits of Videoconferencing : 

Benefits of Videoconferencing Can improve work quality Increase productivity Reduce costs Improves communication Groups can meet more frequently Critical meetings can be convened in less time More faculty and staff can be involved

Slide 11: 

Thank You!!!!!