Video Editing, Video Conferencing, and Streaming Audio and Video


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You will need the following three Media Viewers:



MPEG FORMAT

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For better view I would suggest to down load MPEG Format.

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More Video To View:


What is MPEG (M-peg)?

It is the name given by International Organization Standardization(ISO). The name stands for Moving Picture Experts Group. The groups are Technical Committee on Information Technology. It is used for coding audio-visual information in a digital compressed format.

The working group of the development has produced:

  • MPEG-1 as a standard for product as VIDEO, CD and MP3.
  • MPEG-2 is for Digital Television set top boxes and DVD.
  • MPEG-4 is the standard for multimedia for the fixed and mobile web.
  • MPEG-7 is for audio and visual content.
  • MPEG-21 is the new expected for Multimedia Framework

    To read moreMPEG

    What is Streaming Audio and Video?

    Not so long ago, when a user wants to see a video clips from Internet web browser he or she has to wait until the clips is downloaded on computer. To day thanks to streaming the waiting is over.

    When the video is streamed a small buffer space is created on user computer, and data start to download into the buffer. When the buffer is full the file start to play.

    Streaming Media Viewers:

    The three major players at the moment appear to be

  • Real Networks' RealPlayer,
  • Microsoft's Windows Media Player,
  • Apple Computer's QuickTime Player .

    Streaming File formats:

    The following are several streaming media formats you are likely to encounter:

  • RealNetworks' RealMedia format (.rm file extension)
  • Microsoft's Windows Media format (.wmf file extension)
  • Apple Computer's QuickTime format (.mov file extension)
  • Coming: MPEG format (.mpg file extension)


    What is Videoconferencing - in its most basic form is the transmission of synchronized image (video) and speech (audio) back and forth between two or more physically separate locations, simulating an exchange as if the two (or more) participants were in the same physical conversation. This is accomplished through the use of 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), and speakers (to play audio received from remote endpoints). Although there are many factors that serve to modify or increase the complexity of this basic definition (several of which are discussed in this cookbook), it is useful to keep the concept simple in the beginning when deciding why or how you may be able to use videoconferencing for yourself or your organization.

    Placing an ISDN video call is a lot like placing a telephone call. After you connect, you see the other person in color video and may be able to transfer files or collaborate via options such as document sharing or whiteboarding. The video frame rate varies from 5-30 frames per second, depending on the connection, hardware, and software.

    Basic Videoconferencing Technology

    A videoconference system must have audio-visual equipment (monitor, camera, microphone, and speaker) as well as a means of transmitting information between sites. As you can imagine, a broadband satellite connection with studio-quality equipment produces an excellent full-motion video connection, but the equipment and transmission expense is huge.
    Recent advances in computer and telecommunications technologies have sparked an interest in compressed video systems, which transmit information via today's Internet or telephone network, greatly reducing the cost of videoconferencing.

    Videoconferencing connections may be limited to a closed network (such as a LAN) or may use public networks (such as regular phone lines). Many connect via ISDN (Integrated Services Digital Network) because it is an economical solution for high-quality videoconferencing.

    ISDN works over regular copper telephone lines, transmits at a minimum of 128 Kbps per line, and provides dedicated bandwidth for smooth audio and video (15-30 frames per second). The preferred rate for events is at least 384 Kbps.

    In contrast, an Internet-based connection shares or competes for bandwidth with other Internet data, which may cause audio clipping or delays resulting in jerky video on slow networks. Many schools, libraries, and other institutions are developing high bandwidth networks and are experiencing better results with IP videoconferencing. Many believe that the Internet will eventually replace ISDN as the medium of choice for videoconferencing.