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Multimedia

Multimedia. Definition and Aspects. What is Multimedia?. The same story, information, etc, can be represented in different media: text, images, sound, animation, video … All media can be represented digitally as a structured collection of bits:

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Multimedia

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  1. Multimedia Definition and Aspects T.Sharon-A.Frank

  2. What is Multimedia? T.Sharon-A.Frank

  3. The same story, information, etc, can be represented in different media: text, images, sound, animation, video … All media can be represented digitally as a structured collection of bits: manipulated by programs, stored, transmitted over networks … Digital media can be combined and integrated into multimedia. Modern Multimedia (1) T.Sharon-A.Frank

  4. Modern Multimedia (2) • Combination of media is actually commonplace (e.g., TV news) and natural – we perceive the world through all our senses at once. • Novelty of digital multimedia is that all media can be treated as data. • Programs can manipulate data in response to user input, so digital multimedia can be interactive. T.Sharon-A.Frank

  5. Characteristics of Modern Multimedia Four necessary characteristics: 1. Digital Media 2. Multiple Media 3. Integrated Media 4. Interactive with Human Control T.Sharon-A.Frank

  6. Multiple Media Conversion maps audio pictures ABC text video graphics T.Sharon-A.Frank

  7. DeviceProliferation T.Sharon-A.Frank

  8. Multimedia Workstation Communication CD-ROM Frame Grabber Voice Recognition Unit Fax Video x Speech Synthesis Unit T.Sharon-A.Frank Graphics Audio

  9. MultimediaOverall Configuration AUTHORING PLAYBACK Videodisc player Removable media CD-ROM Scanner Speakers Video display card Touch screen Sound digitizer Videodisc player

  10. Desktop Multimedia Publishing Camcorder, camera or videodisc player Video or TV Monitor Videotape recorder CD-ROM Audio mixer Sound digitizer High quality video card Speakers T.Sharon-A.Frank

  11. Multimedia Application Types • Local MM • Stand-alone • Networked and Distributed MM • Network based • Group communication oriented • Need QoS (Quality of Service) T.Sharon-A.Frank

  12. Online/Offline MM Delivery • Online Delivery: • Uses a network (usually the Internet) to send information from one computer to another. • Web is commonest form of online delivery of multimedia. • Offline Delivery: • Removable storage medium is used to carry the data:CD-ROM, DVD. T.Sharon-A.Frank

  13. Linearity vs. Non-Linearity Linear Text Hypertext/Hypermedia T.Sharon-A.Frank

  14. Linearity • Film: fixed order of frames defines a single playback sequence. • Book: physical arrangement of text and pages implies a linear reading order. T.Sharon-A.Frank

  15. Non-Linearity • Hypermedia: links between pages permit multiple arbitrary reading orders. • Flash: jumps between frames, controlled by interactivity, permits branching and loops. T.Sharon-A.Frank

  16. Hypertext Hypertext is non linear text. It reflects the way we think and write ---- definitions --------- --------------------------- ---------models--------- Node Link Thinking Models Writing Models T.Sharon-A.Frank

  17. Hypertext on the WWW – HTML T.Sharon-A.Frank

  18. Hypermedia Example T.Sharon-A.Frank

  19. Hypermedia Multimedia Hypermedia Hypertext T.Sharon-A.Frank

  20. So what was the message?! T.Sharon-A.Frank

  21. Communication History Wheel 3200-3500 B.C Paper105 AD Printing Press1450s Fax 1843 Telephone 1876 Television1927 Automobile~1900 Radio 1901 Powered Flight1903 Computer1945 The Internet1973 http://www.cbc4kids.ca/general/the-lab/history-of-invention/default.html T.Sharon-A.Frank

  22. Boundaries Between: Computing, Communications and Entertainment T.Sharon-A.Frank

  23. Multimedia Technology Fueling Convergence of Domains T.Sharon-A.Frank

  24. Multimedia in Communication Terms

  25. So what’s behind the picture?! T.Sharon-A.Frank

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