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Objective • Definitions of multimedia • What is multimedia? • Multimedia Types • Applications for Multimedia • Developing Multimedia Project
What Is Multimedia ? Multi • refer to many or multiple Media • Vehicle or agent to convey for something • Example: air for sound, writing for words • Computer is a medium for ideas and information - Express and communicate these ideas - Store and manipulate information in many different forms Multimedia Multi Media
What Is Multimedia ? Multimedia • Presentation of a computer application (usually interactive) • Incorporating media elements such as text, graphics, video, animation and sound on a computer. Multimedia Systems • encompass the computer and software systems that are used in multimedia environments • Interactive control Distributed multimedia systems • operate over some form of network infrastructure
The big picture Media asset management Video Image Authoring Text Frameworks Audio Speech Tools Streaming video Virtual worlds Web pages Client-server Streaming audio Multimedia Systems Distributed MultimediaSystems Multimedia Network
Multimedia Computer System Characteristics • Ability to convert any information in analog form e.g voice, music, video to digital form. • It can control the Multimedia System and can be programmed by the programmer • Interactive • Random access (MM data)
4 Characteristics Multimedia Product • Information present on a computer. Without this feature Polymedia or Mixed Media • Links. Without this feature Book • Navigation tools (icon, button, hot spot) • Interactive presentation. Without this feature TV
A brief history of multimedia • 1970’s - Pong, Atari Apple, IBM and the PC revolution • 1980’s - GUI’s and the mouse and other technologies • 1990’s Multimedia Explosion - WWW - CD-I - Interactive books • Future directions - Technology convergence, education and entertainment, other appliances
A brief history of multimedia World Wide Web Future Digital Audio and Video 32 bit 1990 CD-ROM, Local and Wide Area Networking 16 bit processors Desktop Computer Graphical Operating Systems 1980 1970-an 8 bit processor
Modern multimedia PCs • 3D graphics cards with 64 MB of graphics memory • 64 note sound cards with wavetable synthesis • 256 MB of main memory • 60+ GB hard disk space • 50+ speed CD readers • 56 Kb/s modem or ISDN connection
Multimedia Types • The main multimedia data types we will meet on this course are: - Images, video, audio, text, and animation • We will also discuss how we capture this data... - capture = get it into the computer • ...and render this data - render = display or play the information • We will also find out about the hardware devices that are used to capture and render the data
Multimedia Applications • Multimedia applications can be linear or interactive • Linear multimedia plays from some start position to some end position with little or no intervention - Just like this lecture • Interactive multimedia allows the viewer to jump around the material by interacting with it
Multimedia Industry Structure Content (Media) Level 1 Applications (Software) Level 2 Platforms (Hardware) Level 3 Networking Level 4
Multimedia Industry Structure • Level 1 • - Consists of MM content providers, for example the news industry, the television industry and the entertainment industry. • Level 2 • - Consists of multimedia application developers. • - Applications include distance learning, desktop videoconferencing, multimedia kiosks, entertainment and imaging. • Level 3 • - Consists of MM platform builders. • - These builders include Silicon Graphics, Sun, Intel, Apple, and other hardware vendors.
Multimedia Industry Structure • Level 4 • - The network infrastructure. • - There are two very different networking environments that will use • MM applications: • - business networks and • - the emerging public networks.
Multimedia Applications Types Corporate Functions MM Applications - Corporate Broadcasting - Executive Info. Systems - Multimedia Conferencing - Employee Info. Systems Communications - Corporate Training - Sales Training - Just-in-Time Training - Distant Training Training
Multimedia Applications Types Corporate Functions MM Applications - Design of TV Commercials - Interactive Advertising - Product Information Kiosks - Promotional Presentations - Customer Services - Virtual Reality Simulations Marketing - Product Catalogs - Portable MM Presentations - Merchandising Kiosks Sales
Multimedia Applications Types Corporate Functions Corporate Functions MM Applications MM Applications - Reference Systems - Simulations - Product Visualizations - Design Advisors Product Development - Diagnostics - Equipment Maintenance - Testing Procedures Manufacturing
Multimedia Applications Types Corporate Functions Corporate Functions MM Applications MM Applications - Multimedia File-Sharing - Multimedia Databases - Document Imaging - Productivity Systems - Decision Support Systems Administration • - Home Networking • - Home Shopping • - Home Banking Home
Multimedia Applications Types Corporate Functions Corporate Functions MM Applications MM Applications • Digital TV and Video on • Demand (VoD) • Videophones • Video conferencing • Online interactive transaction • services. e.g. booking shows • or flights • - Video games Interactive Entertainment
Why Apply Multimedia Technology • Ease of use • Intuitive Interface • Immersive Experience • Self-Paced Interaction and Better Retention • Better Understanding of the Content • Cost Effectiveness • More Fun = Greater Efficiency
Multimedia Development Input Output Process Present Save to a file Send across the network Apply effect filters and transforms Compress or decompress Convert between formats Capture from device Read from a file Receive over the network
Summary • Today we have learned about the various aspects of multimedia: - multimedia data - multimedia applications - multimedia development • Multimedia places more demands on the developer and hardware • Multimedia aims to enhance the user’s experience
Next lecture... We will look at how Text and Fonts can be used in multimedia applications. The topic for … • Chapter 2: Basic Multimedia Technology • Chapter 3: Multimedia products • Chapter 4: Applications and Multimedia Role in MSC Project • Chapter 5: Hardware Components for Multimedia System …. The lectures is not given. Please read ….