Strategies for Landing an Oracle DBA Job as a Fresher
ITMA10 Multimedia Applications
1. Objectives
ITMA Lecture 05 Understand the value and use of digital audio in a
variety of career areas and in your life
Multimedia Application Describe the many uses of 2-D and 3-D digital
graphics and imaging media
Discuss how interactive media is used to educate
and entertain
K Ng
Fall 2008
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The Value of Digital Audio
Digital audio
Encompasses digital music and digital sound
Digital music
Any music that is stored digitally, regardless of how
it was originally created
Digital sound
The spoken word
Other nonmusic sounds and sound effects that are
stored and manipulated digitally
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Digital Music Production
Synthesizer
Produces sounds designed to be similar to real
instruments
Produces new sounds unlike any that a traditional
instrument could produce
Sampler
Digitally records real musical instrument sounds
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2. Digital Music Distribution Digital Music Production
(Continued)
Digital music
Burned to CD using a special music format for CD Electronic drum machines
audio Allow the musician to record drum beat patterns
MP3 file format Sequencer
Compresses music files to less than 10 percent of Allows musicians to create multitrack recordings
their original size The musical instrument digital interface (MIDI)
Sound compression protocol
Implemented in 1983
Removes frequencies that are beyond the range of
human hearing Provides a standard language for digital music
devices to use
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Digital Music Distribution Channels
Business-to-business (B2B) distribution
Commonly conducted between music studios and
their customers
Business-to-consumer (B2C) distribution
Occurs through retailers selling CDs and online
services
MP3 music file format
Provides computer users with music files that are
small and easy to share
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The Value of Digital Graphics
Digital art
Uses computer software as paintbrush and the
computer display as the canvas
Digital graphics
Used as a form of creative expression
Used as a means of visually presenting information
Photographers and videographers
Use digital graphics software to edit digital images
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3. Presenting Information Vector Graphics Software
Web designers
Provides tools to
Specialists in creating attractive Web page designs
Use graphics software to design buttons,
Create, arrange, and layer graphical objects on the
backgrounds screen to create pictures
Desktop publishing software Vector graphics
Design page layouts for magazines, newspapers, Uses an object-oriented approach
books
The primary benefit of the object-oriented approach
Digital video
Objects in the picture can be manipulated
Being increasingly used to present news and
independently
information over the Web
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3-D Modeling Software
Provides graphics tools that allow artists to
Create pictures of 3-D, realistic models
3-D modeling
Often referred to as ray-tracing
Rendering
The process of calculating light interaction with the
virtual 3-D models in the scene
3-D graphics
Act as a foundation for other technologies
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4. Computer Animation Computer Animation (Continued)
Digital graphics animation
Displaying digital images in rapid succession 3-D computer animation
Animated GIFs Much more complex than 2-D computer animation
Allow the artist to draw several images
The complexity of 3-D graphic rendering, multiplied
When played in succession, they create the illusion
by the necessity to render 24 3-D images per
of motion second
Images are stored in one GIF file
Flash 3-D computer animation software
Provides a timeline tool used to cue movement in Able to move animated characters according to
the animation direction of the artist
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Photo-editing Software
Includes special tools and effects
Designed for improving or manipulating bitmapped
photograph images
Practical tools
Altering the hue and saturation of colors in the
photograph
Smoothing surfaces or removing flaws in surfaces
Removing “red eye”
Smoothing edges or bringing out of focus shots into
focus
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Creative Imaging Example – Gametap.com’s magazine ad.
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5. Creative Imaging Example – Singapore Telecom Engineering’s magazine ad.
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Digital Video Editing Interactive Media
Video-editing software Multimedia presentations that involve
Allows editing of bad footage
User interaction for education, training, or
Rearranges good footage to produce professional- entertainment
quality video production
Storyline allows the videographer to Combines both digital audio and digital video media
Arrange video scenes sequentially
Specify the transition effects between each scene Video games
Forensic graphics Make up a large portion of the interactive media
Used to create animations and demonstrative market
exhibits
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Education and Training
Authorware
Used to produce interactive multimedia educational
tutorials
Interactive multimedia is being used in
The traditional classroom setting
Distance learning
Museums
Skills-training
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6. Commercial Applications of
Interactive Multimedia
Interactive multimedia
Plays a large role in Web-based e-commerce
The technology that underlies 3-D product viewing
Used to provide product support and customer
training
Playing a large role in attracting customers to Web
sites Demo link:
http://www.juniper.net/products/models/srx5800/index.html
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Interactive Multimedia Entertainment Interactive Multimedia
Entertainment (Continued)
Video games
Employ nearly every aspect of digital media Game designers
Gaming consoles on the market today Develop the game’s theme, storyline, rules,
characters, and environment
The Nintendo GameCube
Game artists
The Sony Playstation 2 (PS2)
Use 2-D or 3-D graphics tools to develop game
The Microsoft Xbox characters and backgrounds
Video game consoles Game sound designers
Highpowered multiprocessor computers designed to Provide background music, voices, and sound
support 3-D interactive multimedia effects
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Interactive Multimedia
Entertainment (Continued)
Game Programmers
Take all pieces and encode them into game
software
Game testers
Check the final product for bugs and glitches
Provide feedback
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7. Interactive TV
Digital television service that includes one or more
of the following:
Video on demand
Personal video recorder
Local information on TV
Purchase over TV
Internet access over TV
Video games over TV
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Interactive TV (Continued)
Video On Demand (VoD)
Customers can select from hundreds of movies to
watch at anytime
Personal Video Recorders (PVR)
Provide large hard drive storage to record movies
and programs
Local Information on TV
Provides local community news and information
Internet Access over TV
Viewers can navigate the Web on their television
sets
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What’s New in Multimedia? What’s New in Multimedia?
2004—The Year of the iPod
In 2004, more than 10 million people purchased digital
music players.
2005—The Year of the Portable Media Center?
Samsung and Creative released portable media players
which store and play music and video using Microsoft
Windows Portable Media Center software
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8. Latest Digital Media Centers… What’s New in Multimedia?
Cell phone media
Smart phones
High-memory cell phones
iTunes on cell phones
Television on a cell phone?
Handheld gaming gets serious
The PlayStation Portable from Sony
High-quality 3-D graphics in a handheld design
HDTV
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Summary Summary (Continued)
Digital audio
Includes both digital music and digital sound
Digital graphics
Sound production Media applications
Important part of music, movies, radio, television,
Used as a form of creative expression
video games, and the Internet
Digital technology Photo-editing software
Applied to all aspects of the music industry Editing tools for manipulating digital photographs
The MIDI (Musical Instrument Digital Interface)
Interactive media
Implemented in 1983
Provides a standard language for digital music Multimedia presentations
devices
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