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  1. Chapter 10 Video

  2. Video in Multimedia • Visual motion helps to convey realism and movement

  3. Uses of Video in Multimedia • Video enhances common applications of multimedia. • Video simulations show procedures and interactions that would be dangerous to perform in actuality • Games use video to simulate flight, car racing, and other action • Web sites and CD-ROMs use videos as reference material • Videoconferences enable participants to see each other and witness demonstrations

  4. Video Quality • Video quality depends on: • The resolution and clarity of individual video frames. • The frame rate or speed at which video frames appear. Frame rate is measured in frames per second (FPS).

  5. What is streaming video? • Streaming video refers to a technique for transferring data so that the browser starts displaying the data before the entire file has been transmitted.

  6. Video File Format • A video file’s format determines: • Which programs can open and play it. • How much space it occupies on a disk. • How fast it travels over an Internet connection.

  7. Common File Formats • The most commonly used video file formats are: • MOV (movie), also known as QuickTime • WMV (Windows media video) • AVI (audio video interleave) • MPEG compresses audio and video

  8. Video Software • There are programs for playing video and audio, as well as editing and distributing video. • A number of video players are available on the Internet for free or at nominal cost. • Video editing software allows you to edit video.

  9. Video Hardware • Video hardware includes: • Camcorders, digital or analog, for recording live action • Webcams, to include live, streaming video in a Web site • Capture cards for converting analog video to digital format • Video tuners to enable a PC to receive and save television signals

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