Introduction To Multimedia CSIT 210 *Several of these slides have been adapted and modified from CMU CPS282 course by Jerry Kabell.

2 Course Outline

Multimedia – An Overview

4 Objectives Multimedia defined Multimedia on the Web Multimedia growth Educational applications

5 Objectives Entertainment applications Business applications Multimedia playback systems Multimedia development systems

6 Multimedia Defined A computer-based, interactive experience that incorporates text, graphics, sound, animation, video and virtual reality.

7 Multimedia Elements Drawings and Photos GraphicsGraphics 2-D and 3-D, Video AnimationAnimationSoundSound

8 Interactivity of Multimedia Allows user to interact with application Content presentation is nonlinear User determines –What content is delivered –When it is delivered –How it is delivered Input can be keyboard, mouse, voice and touch screens

9 Computer Playback System Internet connection with browser also important

10 Multimedia Applications : All uses of multimedia Applications : All uses of multimedia Titles : Specific products; usually on CDs Titles : Specific products; usually on CDs

11 Multimedia on the Web InternetBrowsers World Wide Web

12 Multimedia Growth Highest growth rate is online Telecommunications –Multimedia courseware –Training and teleconferencing Internet –Home pages for products –Video demonstrations –Product purchases

13 Webcasting - Includes audio and video in real time Live broadcast Program needed to receive webcast can be downloaded Live updates on scoreboard

14 Animations Rotating text and 3-D settings Software –HTML –Macromedia Flash –Virtual Reality Modeling Language (VRML)

15 HTML HyperText Markup Language Basic Web documents Hyperlinks HTML tags: Hello HTML tags: Hello

16 Multimedia Web Pages Java programming language –Animations –Database searches –Applets Need for file compression –Video/audio files very large –Modem speeds can be slow

17 Growth of Multimedia Growth in % of homes with computers in US Prices dropped from $2000 to $500 from 1997 to 2001 Growth in % of homes using internet in US

18 Internet Usage Growth Drivers

19 Growth of Internet Users

20 Growth of Mobile Subscribers

21 Growth of Multimedia Audio and video delivered on web (RealPlayer) CD-ROM titles decreased –1992 = $100 –Today < $20 Computer company marketing techniques –Next “killer application” Adding value to an existing product (the computer)

22 Multimedia Barriers Different types of computer systems Vary in speed, capacity and display capabilities Lack of standardization Lack of a way to deliver huge amounts of information to the desktop

23 Using Multimedia for Education Learning by association Learning by experimentation Learning by visual stimulation Learning by sound

24 Multimedia Allows Students To “Jump” via hyperlinks Proceed at their own pace Focus on particular areas Be in charge of learning experience Have instant feedback

25 Online Course Benefits access it anytime from anywhere see animations with audio and video have virtual labs to conduct experiments Students can:

26 Edutainment CDs

27 Reference Titles and Multimedia Encyclopedias Census data Yellow Pages Dictionaries

28 Entertainment Applications Pioneers in multimedia were game developers Emphasis has shifted from: –Pure action  Action + story-telling –Games  Entertainment –Physical  Mental

29 Games on the Web

30 Virtual Worlds A new field in entertainment on the Web where individuals can log on and interact with others in a virtual environment that includes chat sessions.

31 Online Entertainment Categories Sports (Beckett Interactive Football League) Mystery (Avalon) Adventure (Webstrike) Fun (Playsite backgammon, etc.)

32 Recreation Applications Give user a vicarious experience –“play” a famous golf course –“fly” over 3-D cityscapes Could include hobbies and sports titles

33 Microsoft Flight Simulator Award winning; most popular; oldest U.S. Navy has used it to train pilots Requires a fairly powerful computer configuration for latest version Has spawned web sites, user groups, newsletters, and add-on products

34 Multimedia Category Crossovers

35 Business Applications Multimedia used for communication: TrainingPresentationsMarketing

36 Marketing on the Web Go global on the Net Shop online Demonstrate product lines Allow users to customize products online Publish magazines online

37 Corporate Training Multibillion-dollar industry Focus on specific skill sets Can be on CD or the Web –Often use an Intranet Can train for certification tests

38 Business Presentations

39 Computer Playback Systems Development System Playback System

40 Hardware Issues Minimum configuration vs. recommended configuration Processor can determine speed Memory types: –Temporary: Random Access Memory (RAM) –Permanent: hard drive

41 Hardware Issues: Displays Monitor standards: –Screen resolution –Number of colors

42 Hardware Issues: Displays Resolution differences 640 x x 768

43 Hardware Issues: Displays Video Graphics Card –Video Graphics Array (VGA) –Super VGA (SVGA) Card determines: –Resolution –Memory capacity –Number of colors displayed

44 Hardware Issues: Sound Need: –Audio card (Sound Blaster) –Speakers Sound quality depends on number of bits used Standard is 16-bit sound

45 Hardware Issues: Digital Disks Compact Disc Read-Only Memory Digital Versatile or Video Disk Drive determines –What type of disk can be played –Speed of locating data on disk (seek time) –Speed of transferring disk information to computer CD-ROM DVD

46 Multimedia Development Systems Speakers Video camera Flatbed scanner Microphone High capacity removable disk storage Disk array for video capture and storage CD-ROM recorder

47 Development Platforms Macintosh –Superior handling of graphics –Cross-platform capabilities –Used extensively in multimedia development Windows Software allows –Development on particular platform –Playback on both platforms

48 Development Configurations Pentium III 750 processor or Power Mac MB of RAM desired 20 GB of hard disk space Video capture card (internal) and video source (camera, VCR, TV) 19” monitor

49 Digital Cameras Menu Options: –Preview –Play back –Delete –View in slide-show Images stored on 4 GB SDHC memory card (available upto 32 GB)

50 Issue: What is the appropriate use of multimedia? Does development time outweigh cost of alternatives? How should we use text and video? Who is your audience? Is use of bells and whistles appropriate? What are our objectives?

51 Issue: MPC Standards - Are they needed? 1990 MPC Level 1 specifications created 1991 Multimedia PC Marketing Council formed 1993 MPC Level 2 specifications created 1995 MPC Level 3 specifications created 1996 to present ????????

End Multimedia – An Overview