INTRODUCTION TO MULTIMEDIA
• Multimedia is one of the most fascinating and fastest
growing areas in the field of information technology.
Text, pictures, animation, movies and sound - all
these varied media are seamlessly blended, resulting
in simple slide shows to dazzling, interactive
• Before the advent of computers, multimedia projects
were difficult to put together. Computers enable to
combine the media and also store the results for
What is Interactive
• Generally, multimedia is the presentation (usually
by computer) of information through many forms of
• The term is used in contrast to media which only
use traditional forms of printed or hand-produced
• Content, such as pictures, sound
effects, music, animation, video, and so on are
organized and directed by a program to produce a
specific experience for the user. Multimedia today
is mostly non-linear.
• Multimedia is usually recorded and
played, displayed or accessed by information
content processing devices, such as
computerized and electronic devices, but it can
also be part of a live performance.
• Any Examples?
LINEAR & NON-LINEAR
• Multimedia may be broadly divided into linear
and non-linear categories.
• Linear active content progresses without any
navigational control for the viewer such as a
• Non-linear content offers user interactivity to
control progress as used with a computer game.
• The two main types of linear multimedia are movie
presentations, such as pre-recorded instructional videos
or movies recorded for entertainment purpose being
broadcast on standard TV or cinema, and printed books
• Live video feeds can also be considered linear
multimedia because the viewer has no ability to speed up
or slow down the presentation or skip to different
segments. E.g. Live cricket or football matches.
Any other Examples?
• Nonlinear interactive multimedia combine the same
technologies as linear ones, but with a twist. The
viewer is hands-on, controlling what is viewed.
• Multimedia ceases to be classified as linear when any
interactive elements at all are introduced, such as the
ability to skip to different chapters in a DVD, rewind
or fast-forward in a video, move a character in a
game, or navigate to different sections of a website.
2. Sound and Music files
3. Video Files
5. Text (including hypertext)
6. Virtual Reality
• Pictures or images are an important component
of any multimedia project.
• They are commonly used to represent visual
controls, graphical buttons, web site
headers, navigation links and advertisements.
• Sound files (Recorded Audio commonly called
WAVE or AIFF files) are a digital recording of an
actual sound whether that sound be an event, such as
a door closing, or music, such as a symphony
• Audio Interchange File Format (AIFF) is an audio
file format standard used for storing sound data for
personal computers and other electronic audio
devices most commonly used on Apple Mac systems.
• WAVE or WAV (Waveform Audio File Format), also
named Audio for Windows, is a MS and IBM audio
file format standard for storing an audio bit stream
on PCs. It is the main format used on Windows
systems for raw and typically uncompressed audio.
• A digital music file (also known as a MIDI
file, from Musical Instrument Digital Interface) is
not an actual recording of a live sound.
• A MIDI file is a composed sequence of data that is
interpreted by the computer's sound synthesizer
and translated into actual sound.
Digital video files (commonly called AVI or
QuickTime files) store moving picture
information in a format that can be played back
on the computer screen.
• Animation is created by moving and changing
a Sequence of pictures or objects on
cue, similarly It is achieved by changing an
image slightly, one frame at a time, in a timed
sequence to give the illusion of movement.
• Animation is an optical illusion of motion due
to the phenomenon of persistence of
vision, and can be created and demonstrated in
a number of ways.
• Animation makes static presentations come
alive. It is a visual change that adds spice to a
project. Wipes, fades, zooms, dissolves are
almost a part of all authoring tools but animation
is much more than that; animation is actual
objects moving around in and out of your
screen, bugs crawling under disks, birds flying
around and so much more.
• With multimedia technology, the reliance on
textual information is complemented by sounds
and pictures that enhance understanding and
• In addition, hypertext enhances the meaning of
the written word. Hypertext is where a word, or
phrase in a section of text, can be referenced to
another related topic when the user clicks on the
word with his or her mouse; the computer then
displays the linked reference.
• An artificial environment created with computer
hardware and software and presented to the user
in such a way that it appears and feels like a real
• A computer-based technology for simulating
visual auditory, and other sensory aspects of
• Virtual Reality Modeling Language (VRML)
technology provides the user with the capability
to browse and fly through three-dimensional
• In virtual reality, the computer controls three of
the five senses. Virtual reality systems require
extremely expensive hardware and software and
are confined mostly to research laboratories.
• Haptics is the science of applying touch
sensation and control to interaction with
computer applications. Haptic technology can
be used to train people for tasks requiring
hand-eye coordination, such as surgery and
space ship maneuvers. Users can receive
feedback from computer applications in the
form of felt sensations in the hand or other
parts of the body.
• This technology today can be seen in Cell
phones and digital cameras but that is just the
tip of the ice berg. Interactive video games are
proving to be the latest trends in this area.
• Drum Rocker
• Developed by electronic
Alesis, this Rock Band-
ready drum kit-cum-
video-game controller is
made of high-impact
plastic and durable
materials that make it feel
like a real drum kit.
• Hot on the heels of the first ever bass guitar
controller for Playstation and Xbox is the
Gene Simmons Axe bass guitar controller.
• What applications can you suggest that could
implement Virtual Reality.
• Describe the benefits of using Haptics. Where
can this technology be most utilized. Find atleast
3 applications that use Haptics.