Friday, July 26, 2013
INTRODUCTION:
Ideas, thoughts and information can be shared through various
means. It could be text based, or
through audio, visual medium. This
information is useful in different ways.
By manipulating the text, audio and visuals. We can obtain effective communication
multimedia in the tool for integrating text, audio, video into a communication
media, i.e. by representing these tools in effective manner, we can communicate
with other peoples.
Multimedia files, applications in diverse fields such as education
and research, video conferencing, marketing, entertainment, the Internet, the
virtual reality, business presentation etc.
Multimedia is a technology including or involving the user several
types of media such as text, pictures, audio, video, and animation but all
these are in digital format. So that
multimedia is a technology, which is used as mechanically.
At present almost multimedia is reached into every field, i.e.
depending upon the necessaries different fields use multimedia in different
ways. Some examples are business,
television, news, education, advertising etc, using multimedia according to
their needs.
NEEDS OF MULTIMEDIA:
The main need of
multimedia is to obtain effective communication. Different kind of fields uses this multimedia
in different ways. For example the
advertisement field produce different advertisements by using different
multimedia tools to attract the people.
Some times they add animation, morphing in advertisements.
In industry side,
the multimedia is used for various purposes.
Each department in industry use multimedia application to show their
current status to the company owners. By
using multimedia we can represent information in seminars, effectively.
Computer graphics
systems also need of multimedia to make graphics perfectly. In movie industry at present, they are using
multimedia application to make movies effectively.
MULTIMEDIA ELEMENTS AND TOOLS:
There
are basically 4 elements are need in multimedia.
1. Texts
2. Pictures
3. Audio
4.
Video
By using these
elements we can create many kinds of visualization.
For example, the ordinary text can be changed
to graphical text. Then we use this
graphic text in 2D or 3D animation.
Power point is an example of text animator. By using these elements we can represent
information in a understandable manner in different ways.
1.TEXT:
Computers have always conveyed information through text. Text is one of the most widely used and one
of the oldest forms of communication text is effectively used by multimedia
application to provide information, provide help, help the user navigate
through the application and provide overall interactivity to the application.
In a multimedia application, text
should be used intelligently to convey the desired meanings effectively. For example, 'quit' sounds are more powerful
than 'close'. "Brilliant!" may
be used instead of "the answer was correct". Of course the usage of text depends on the
nature of the application.
By using multimedia software MS-WORD, ADOBE we can create different
types of text. We can show light effects
and 3D effects on the text by using multimedia soft wares. We can also animate
this formatted text. For example, power
point is software to animate the text.
Each software has different kinds of fonts available. These are used to change our text, as we
require.
HYPER TEXT:
Hyper text is the link to another page of information when the user
click on these hypertext we can see the page of information. Some times pictures also used as hyper links
to another location.
Therefore by using hypertext,
we can represent whole information in a brief manner. This concept is used in web designing and
documentation processing.
HYPER MEDIA:
Hypermedia is link between different kinds of media elements such as
graphics, audio, and video. Through
hypermedia, related data from such sources as optical disks, telephones,
televisions, and electronic mail can all be linked making it possible to move
among the various media by choosing the appropriate option.
The basic concept behind hypertext and hypermedia are the same. The main difference being that in a latter,
links are used to connect all kinds of information, not only text.
The two common expressions used in hypermedia are 'link' and
'node'. Links are connection between
conceptual elements or nodes. i.e. the
nodes containing text, graphics, sounds, or related information in the
knowledge base. The important thing to
be taken care of while designing the links and their nodes so that they make
sense.
These hypertext and hypermedia are very useful to find information
in Internet using search Engines.
Whenever we want to find information about any particular things or
object we have to entered keywords into the search engine. Whenever we click on search to get the
information it will automatically search the hyperlinks of the corresponding
keywords in Internet and it displays their hyperlinks information.
2.PICTURES:
Sometimes pictures are more useful that text to represent
information with effective and efficient manner. For example, to illustrative and area of
weather report it is easy to represent graphically than textually. By using multimedia software photo shop,
power point, paint we can create different pictures according to our needs.
3.AUDIO:
Audio technology is added beauty to multimedia application. By using audio technology we can communicate
with other people. We can hear the
sounds or use sounds in applications.
The audio multimedia software is very useful in recording the sounds
and recording the speeches. After
recording all these things we can use different ways.
Ex: Voice email is the best example of multimedia application.
In voice email there is no need to read the message, it will
automatically read the message.
4.VIDEO:
By combining text, audio with video technology we can represent
information more understandable. By
using video technologies the user can know the information directly by seeing
video.
ANIMATION:
Animation is entirely different from video, because video is the continuous
stream of film images but animation use drawn illustration. Animation is the process of creating and
displaying images, which appears to have motion or dimension or both. Applying animation to graphics increase the
interest of the viewer makes the graphics more realistic and exciting. Animation adds impact to multimedia projects
and in widely used in multimedia application to make them more attractive.
Animation works on the principle that if a series of pictures are
displayed one by one at a certain speed, they create an illusion of movement.
There
are two main areas of computer animation:
2D
(Two Dimensional)
3D (Three Dimensional)
2D
ANIMATION:
2D animation uses traditional techniques such as 'cel'
animation. It also uses methods like
'tweening'.
Disney derives the term ‘cel’ from the clear celluloid sheets that
were used to draw each frame in the cartoon movies made. However, nowadays-plastic sheets are used for
the purpose. Cel animation network
begins with 'key frames' (the first and last frame of the action).
The series of frames in between the key frames are drawn in a
process called 'tweening'. Tweening an
action requires calculating the number of frames between key frames and the
path the action takes. As tweening
progresses, the action sequence are checked by flipping through the frames and
colors are applied to the frames.
3D
ANIMATION:
3D Animation is more complex.
Examples of simple 3D graphics are text animation in which the text has
depth, width and height. The basic
principle of creating a 3D animation is to first create an object in the
dimensions of space, give it a geometric wire frames and covers it with colors
and textures, place lights and cameras and render it to see the final output. This process and the concepts involved in
creating a 3D animation are explained below.
1. A shape is created. A process used by 3D software is LOFTING, it is used to
change a 2D object to 3D one.
Ex: Flat circle to
cylinder.
2. It is given a geometric wire frames (These
wire frames are also called meshes)
3. Another concept used while
creating 3D animated object is inverse kinematics. This is used to link related movements.
Ex: When a man
moves his hands, his figures, wrist, arm, and shoulder move accordingly.
4. Then object is applied color and texture
(plastic surface).
5.
The lights are placed at the
desired location to get an effect of light falling on the object.
6.
After all this is done, key frames are set to
trace the movement of the object. Key frames are the first and last frames of
the action. The number of frames can be
set. Key framing technique allows the
animator to choose the specific start and end frames. The computer creates the motion based on the
start point, end point and the number of frames.
7.
. Finally this is rendered to get the final
output. Rendering is the process of finally getting the output of the animated
object, rendering can be compared to compiling.
MORPHING:
Morphing
is also related to animation. It is a
technique that allows smooth changes to occur to an object's shape by defining
beginning, end, and possibly intermediate forms as guides or targets. Morphs can change just about any form into
another, but they also can be used to animate organic forms realistically, such
as snake's slithering motion or a sneezing man's facial contortions.
Some
of the software that provides animation tools are Animator Pro, Animation
Master, 3D Studio MAX, Ray Dream Studio etc.
MULTIMEDIA-WEB DESIGN:-
Multimedia
is very powerful tool to design web pages today. Every owner of the web page creates their
WebPages in a attractive manner to attract the users. He gives many facilities like e-mail,
downloads, chat etc. These are provided
to attract the people. When the web is at initial stage we have only little
website which are providing all kinds of facilities at free of cost. But at
right now there are a lot of sites giving free services to the people. So to attract the people to visit their sites
the owner of the sites are developing their homepages more attractively. To
develop an interesting and attractive web page the web designer use various
multimedia applications like image, text, audio and video tools. By developing
WebPages with hyperlinks it is easy to search to information in the web through
Search Engines. The search engine search
searches all the sited for information about given keywords. By adding images to the WebPages we can
download or copy them to our systems.
We
can hear music through web pages, by clicking on the song. To hear this we are avail lot of audio soft
wares are developed. For example the
real player is one of the audio software, which is used to hear the song in
Internet. Similary we can view movies, clips and animation in Internet and hear
sounds using the media player software.
Some WebPages are opened with playing sound automatically. For example tirumala.org was designed in the
same. When the user enters in to
tirumal.org then he automatically hear the slogan of Lord Venkateswara. This will attract the user. Some websites gives virtual walk into
WebPages. That is by opening some
WebPages we can feel that we are seeing directly the objects or places. For
example whenever we open pentium3.com we can see Tajmahal just like seeing
directly. That is the Designer makes
some slow movement into the Tajmahal continuously. Some WebPages are provided facility of void
main and void chatting, by using these facilities the user can chat to other
people with voice and they can read the mails. At present we can make phone
call through Internet among the world.
In this way the multimedia is useful in
developing WebPages with more facilities.
APPLICATIONS
OF MULTIMEDIA: -
Multimedia
is almost useful in all fields. We will
discuss some areas in which multimedia is useful.
1.BUSINESS
Multimedia
is used in business to enhance quality of business communication. Now we see advertisements and corporate
presentation incorporating multimedia video conferencing, another activity that
involves multimedia allows people to get together for discussions on the
internet.
2.MEDIA AND ENTERTAINMENT
Media
and entertainment industry are major benefactors of multimedia technology. Graphic effects, animation and sound are
widely used in producing animation movies.
The ability to manipulate sounds, through techniques like mixing,
provides ability to change the existing sound track by mixing with another
sound retrace. This technique is widely
used by musician’s toy produce exotic sound effects.
Entertainment
CD's containing games, comics, and stories for children are widely available
which can be used for the twin purpose of entertainment and education. These CD's make use of all the components of
multimedia.
One
popular technique, transition morphing is used widely now a days. It is the process of creating an illusion of
one image melting into another while warping the two images so that they appear
to be merging into one another. This
technique is used to create special effects is moves, ad-films etc. One popular morphing software is elastic
reality.
3.MARKETING WITH MULTIMEDIA
Multimedia
finds application in highly diversified areas like marketing, which includes
sales promotion, direct sales and customer ser ices. Multimedia brochures and multimedia
catalogues are used for sales promotion.
Merchandising systems are being used ads point-of-sales information
systems or direct sales.
Specific
multimedia applications in sales and marketing take on a variety of
formats.
These include electronic brochures,
electronic catalogues, and special medical and pharmaceutical promotions.
Electronic
brochures consist of a CD or diskettes with highly interactive program using
still images, graphics, sound, text and data.
As co pared to direct mail brochures, electronic brochures contain much
more detailed information and provide interactivity which otherwise cannot be
achieved in conventional brochures.
Electronic brochures are used to promote products to specific audiences.
Electronic
catalogues are interactive multimedia presentations, which allow the industrial
buyer to make product selections and comparisons on the computer screen. Such catalogues are delivered through a
CD-ROM disk and a multimedia PC platform equipped with a modem, which enables
placement of orders to the distributor for immediate processing.
CONCLUSIONS:
By considering above features we can say that Multimedia plays a
vital role in almost in every field. It
will used to make good communication between the people. But to use multimedia
the person must have some high quality skills to build a perfect
application. To install the multimedia
the system must have some good high quality hardware.
REFERENCES:
Multimedia-Internet Christian Crumlish.
Multimedia-new
Technology Jim Knoughton.
Complete
multimedia Hernold Gophery.
