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Chapter 10. Video. Video in Multimedia. Visual motion helps to convey realism and movement. 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

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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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