MULTIMEDIA TECHNOLOGY INTRODUCTION TO MULTIMEDIA

MULTIMEDIA TECHNOLOGY

INTRODUCTION TO MULTIMEDIA

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History Of Multimedia

• What can we say about the evolution of media that has taken place for thousands of years?

• Since the dawn of time, people have had the need to communicate with one another

• This created what we called as communication media

http://www.december.com/present/mediaev.html

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The notion of MultimediaConsists of two words:Multi (Latin)= many; much; Medium (Latin) = An intervening substance through which something is transmitted or carried on.

Multimedia

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What is Multimedia?•Multimedia can be any combination of text, graphics,

sound, animation and video, to effectively communicate ideas to users delivered by computer or any other electronic devices.

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What is Multimedia? (Other definition)• ‘Multimedia is any combination of text, art, sound,

animation, and video. It is delivered to the user by electronic or digitally manipulated means. A multimedia project development requires creative, technical, organizational, and business skills.’

Tay VaughanMultimedia : Making it work 7th Ed.

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What is Multimedia? (Other definition)• ‘“Multimedia is the presentation of a (usually

interactive) computer application, incorporating media elements such as text, graphics, video, animation and sound on computer.”

Stephen McGloughlin Multimedia: Concepts & Practice

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Multimedia Building Block

Digital environment

USERUSER

Elements of Multimedia

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Why Multimedia?• Ease of use• Intuitive Interface• Immersive experience• Self-paced interaction and better retention• Better understanding• Cost effectiveness• More fun = greater efficiency

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Multimedia has a number of distinct and unique features, including:

Based on Edgar Dale (Cone Of Learning), on average, people remember:

10% of what they read,20% of what they hear,30% of what they see, 50% of what they hear and see, multimedia approach

multimedia rich elements, multi-sensory delivery system can facilitate greater retention of new knowledge

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Types of Multimedia

•Linear Multimedia▫Users have very little control over the

presentation

•Nonlinear/Interactive Multimedia▫Users dictate the flow of delivery. User

control the flow of the show.

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Types of Multimedia: (1)Linear Multimedia▫The users sit back and watches the

presentation▫The presentation normally plays from

the start to end or even loops continually to present the information.▫A movie is a common type of linear

multimedia

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Types of Multimedia: (2)Interactive Multimedia

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The users control the delivery of elements – to control the what and when. Users have the ability to move around or follow different path through the information presentation.

Advantage: complex domain of information can be presented.

Disadvantage: users might lost in the massive “information highway”.

Useful for: information archive (encyclopedia), education, training and entertainment.

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What is a Multimedia Project?•The software vehicle, the messages, and the content

together constitute a multimedia project.•A multimedia project shipped to end-users with or

without instructions is called a multimedia title.•A project can also be launched on the Web.•Authoring tools are used to merge multimedia

elements into a project.•These software tools are designed to manage

individual multimedia elements and provide user interaction.

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Delivering and Using MultimediaThe primary media for delivering multimedia projects

are: ▫Compact disc read-only (CD-ROM).▫Digital Versatile Disc (DVD) / Blu-ray Disc

•Multimedia Projects can also be delivered online (webs) and through PDAs/Hand-held Devices

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Delivering and Using Multimedia : (1) CD-ROM•CD-ROM is the most cost-effective distribution

medium for multimedia projects.• It can contain up to 80 minutes of full-screen video

or sound.•CD burners are used for reading discs and converting

the discs to audio, video, and data formats.

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Delivering and Using Multimedia : (2) DVD / Blu-ray•Multilayered DVD technology increases the capacity of

current optical technology to 18 GB.• DVD authoring and integration software is used to create

interactive front-end menus for films and games.• DVD burners are used for reading discs and converting

the disc to audio, video, and data formats.• BD – Blu-ray disc (Blu-ray Disc Association BDA)

▫ next-generation format for high-definition video and high-density data. ▫ A single-layer disc can fit 23.3, 25, or 27 GB (enough for approximately four hours

of high-definition video with audio)▫ supports 25GB for one layer, 50GB for two and 100GB for four

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Delivering and Using Multimedia (3) Online• Multimedia can be delivered online•Copper wire, glass fiber, and radio/cellular

technologies also serve a means for delivering multimedia files across a network

•Online uses include: Books and magazines, Education Movies, Entertainment News and weather Maps

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Business and Industry

•Virtual Shopping•Desktop Videoconferencing•Real estate•Training•Electronic Brochures

Application of Multimedia04/19/23 11:37 AM

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Entertainment

•Morphing•Superimposition•Animation•Toy Story•Virtual Reality


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Education

•Cognitive vs Behavior Psychology•Art•Biology•Chemistry etc.•WebCt and online delivery


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Entertainment•Cinema▫morphing▫Superimposition▫Animation ▫Digital Recasting

•Video games• Interactive Movies•Virtual Reality•Cyber-Sports


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Government and Politics

•Kiosks•Electronic Town Meetings• Internet•Warfare•Virtual campaigning•Consumer information


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•Encyclopedia Resources

Medicine and Nursing

•Medical Training•Anatomy and Physiology•Virtual Surgery•Videoconferencing Network•Online Resources


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Application Development Packages

•Presentation Packages•Hypermedia Programs•Animation and Multimedia Sequencing•Authoring Systems•World Wide Web


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Applications of Multimedia

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Examples of Multimedia Applications: •Digital video editing and production systems•Electronic Newspapers/Magazines•Games•Groupware•Home shopping•Interactive TV•Multimedia courseware•Video conferencing•Video-on-Demand (VoD)•Virtual reality

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Multimedia System Characteristics

•Multimedia systems must be computer controlled.•All multimedia components are integrated.•The interface to the final user may permit

interactivity.• Information must be represented digitally.

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Overlapping Technologies

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•Different branches of multimedia grow together because of new, upcoming multimedia technology and applications.

•Two challenges lie ahead:▫Timing requirements (synchronization etc.)▫Integration requirements (of different media types)

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Summary•Multimedia is the combination of text, graphics,

sound, animation and video, to effectively communicate ideas to users delivered by computer.

•Multimedia projects can be linear or nonlinear.•Multimedia projects are often stored on CD-ROM or

DVDs. They can also be hosted on the Web.•Multimedia is widely used in business, schools,

public places, and at home.

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HardwareVaughan’s One-way Rule“Once you’ve tried it, you can’t go back”(Vaughan, 2001)

Sullivan’s Observation“I have never meet a hard drive I haven’t filled”

(Sullivan, 1996)

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Platforms•Mac•PC• Linux

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Connections• Networks – Wireless or Wired?▫ LANS▫ WANS

• Servers• SCSI –▫ 80 Mbps

• USB▫ USB 1.0 - 12 Mbps (supports 127 peripheral devices) 1996▫ USB 2.0 – 480 Mbps (compatible with 1.1) 2000

• Firewire – 400 Mbps to 800 Mbps (IEEE 1394) guaranteed rate good for video and real-time data

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Communication▫Modem – 56 Mbps▫DSL – 32 Mbps upstream and 32 Kbps to 1 Mbps

downstream -20,000 ft.▫Cable – 2 Mbps▫T1 - A dedicated phone connection supporting data rates of

1.544Mbits per second. A T-1 line actually consists of 24 individual channels, each of which supports 64Kbits per second.

▫T3 - A dedicated phone connection supporting data rates of 1.544Mbits per second. A T-1 line actually consists of 24 individual channels, each of which supports 64Kbits per second.

▫ Coaxial – 10 Mbps▫ Fiber Optic - Gigabytes

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Memory and Storage•Central Processor▫RAM vs ROM▫Zip & Hard Drives▫CD’s - Burners▫DVD’s +, -▫DVD Burners

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Memory

Memory required to store a 5 by 7 inch snapshot with different precisions

Dots/inch resolution of snapshot image

Bytes required for storage

100 1.05 Mb

300 9.45 Mb

600 37.8 Mb

1200 151.2 Mb04/19/23 11:37 AM

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Input Devices•Multimedia Keyboards•Mice, Trackballs, Touch screens•Magnetic Card Encoders and Readers•Graphic Tablets•Scanners•OCR Devices• Infrared Remotes•Voice Recognition Systems•Digital Cameras

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Output Devices•Audio Devices•Amplifiers and Speakers•Monitors•Video Devices•Projectors▫ Luminance▫Chrominance

•Printers

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Multimedia Accessories• Video Overlay: allows a computer to display common video

sources including video cameras, VCR’s and video disc simultaneously.▫ Multiple inputs, frame grab, TV tuner, Video for Windows, Memory

conflicts, Video adapter compatibility▫ Check PC World

• Digital Video• TV Tuner• MIDI - MIDI kit by Midisoft▫ www.rolandus.com laptops▫ www.midisoft.com

• VideoDisc

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Software that enables Multimedia• System Software

▫ OS▫ Utilities▫ Networking

• Development Software▫ Graphics▫ Sound▫ Text▫ Web Developing▫ Multimedia Authoring

• Delivery Software▫ Stand-Alone Programs▫ Players

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System Software•Written specifically to control its CPU•Unique to the CPU brand and model•Written in or translated into the machine language

of the CPU•Used to run computer•Utilities▫To play sound▫Print the screen image▫Eventually became operational extensions of OS▫ Important consideration when choosing OS

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Painting and Drawing ToolsMost multimedia authoring programs, at least for

now, import bitmaps. •Painting Software (bitmap)▫PhotoShop, PicturePublisher, and Fractal Designer

•Drawing Software (vector)▫CorelDraw, FreeHand, Illustrator, Designer, and Canvas▫Macromedia’s Flash vector▫Fireworks

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Image-editing ToolsAre specialized and powerful tools for enhancing and

retouching, existing bitmapped images• PaintShop Pro & PhotoShop▫Plug-ins

Vertigo’s HotTEXT lets you turn text into 3-D objects EyeCandy Kai’s power tools Xaos tool’s paint alchemy

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3-D Modeling•Extreme 3-D, 3d/fx, AutoDesk’s 3D Studio Max,

StrataVision’s 3D, Infini-D, etc.•Bryce•Poser•Examples, anyone?

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Sound Applications•Sound Editing▫Sound Recorder▫Sound Forge▫SoundEdit ▫MIDI

•Sound Playback▫Windows Media Player▫QuickTime▫Real Player▫WinAmp

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Animation, Video and Digital Movie Tools

Animation and the perception of motionQuickTime, Microsoft’s video for windows, Adobe

Premiere, MorphingVideo formats avi, mov, mpegMovie editors – decoders – Targa boards 30+, Adobe after

effects, Pinnacle boardsCompression, Image quality, Compress/decompres speedLossless or lossy

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Linking Multimedia ObjectsDDE & oleOffice suitesPresentation tools

AstoundPersuasionPowerPointDeltaGraph professionalHarvard graphics

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Networking Software• Network Hardware Protocols▫ Ethernet▫ Token Ring▫ ATM

• Message Passing Protocols▫ HTTP▫ SMTP▫ AppleTalk▫ TCP/IP▫ IPX/SPX▫ SNA

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Web Development•Authoring Tools▫Microsoft FrontPage▫Macromedia’s Dreamweaver▫Adobe’s GoLive

• Languages▫JavaScript▫Visual Basic

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Helpful Accessories•Screen Grabber▫PaintShop Pro▫Capture▫SnapPro▫Hijaak 95

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Documents

MULTIMEDIA TECHNOLOGY INTRODUCTION TO MULTIMEDIA