2 Objectives Multimedia defined Multimedia on the Web Multimedia growth Educational applications
3 Objectives Entertainment applications Business applications Multimedia playback systems Multimedia development systems
4 Multimedia Defined A computer-based, interactive experience that incorporates text, graphics, sound, animation, video and virtual reality.
5 Multimedia Elements Drawings and Photos GraphicsGraphics 2-D and 3-D, Video AnimationAnimationSoundSound
6 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
7 Computer Playback System Internet connection with browser also important
8 Multimedia Applications : All uses of multimedia Applications : All uses of multimedia Titles : Specific products; usually on CDs Titles : Specific products; usually on CDs
9 Multimedia on the Web InternetBrowsers World Wide Web
10 Multimedia Growth Highest growth rate is online Telecommunications –Multimedia courseware –Training and teleconferencing Internet –Home pages for products –Video demonstrations –Product purchases
11 Webcasting - Includes audio and video in real time Live broadcast Program needed to receive webcast can be downloaded Live updates on scoreboard
12 Animations Rotating text and 3-D settings Software –HTML –Macromedia Flash –Virtual Reality Modeling Language (VRML)
13 HTML HyperText Markup Language Basic Web documents Hyperlinks HTML tags: Hello HTML tags: Hello
14 Multimedia Web Pages Java programming language –Animations –Database searches –Applets Need for file compression –Video/audio files very large –Modem speeds can be slow
15 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
16 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)
17 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
18 Using Multimedia for Education Learning by association Learning by experimentation Learning by visual stimulation Learning by sound
19 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
20 Online Course Benefits access it anytime from anywhere see animations with audio and video have virtual labs to conduct experiments Students can:
25 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.
26 Online Entertainment Categories Sports (Beckett Interactive Football League) Mystery (Avalon) Adventure (Webstrike) Fun (Playsite backgammon, etc.)
27 Recreation Applications Give user a vicarious experience –“play” a famous golf course –“fly” over 3-D cityscapes Could include hobbies and sports titles
28 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
39 Hardware Issues: Sound Need: –Audio card (Sound Blaster) –Speakers Sound quality depends on number of bits used Standard is 16-bit sound
40 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
41 Multimedia Development Systems Speakers Video camera Flatbed scanner Microphone High capacity removable disk storage Disk array for video capture and storage CD-ROM recorder
42 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
43 Development Configurations Pentium III 750 processor or Power Mac 500 256 MB of RAM desired 20 GB of hard disk space Video capture card (internal) and video source (camera, VCR, TV) 19” monitor
44 Digital Cameras Menu Options: –Preview –Play back –Delete –View in slide-show Images stored on 16MB CompactFlash™ card
45 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?
46 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 ????????
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