Category: Multimedia


Virtual Reality Technology

At the convergence of technology and creative invention in multimedia is virtual reality,or VR. Helmets,Goggles, special gloves and bizarre human interface attempt to place you” inside” a lifelike experience.Take a step forward and the view gets closer; turn your hand moves in front of you .Maybe the object explodes in a 90- decibel crescendo as you wrap your finger around it.Or it slips out from your grip, falls to the floor, and hurriedly escapes through a mouse hole at the bottom of the wall.

Virtual-Reality-300x212Virtual Reality require terrific computing horsepower to be realistic.In virtual Reality, your cyberspace is made up of many thousands of geometric object plotted in three- dimensional space:  the more object and the more points that describe the objects, the higher the resolution and the more realistic your view, As you move about, each motion or action requires the computer to recalculate the position, angle, size, and shape of all the object that make up your view, and many thousands of computations must occur as fast as 30 times per second to seem smooth.

On the World Wide Web,standards for transmitting virtual reality world or scenes in VRML (Virtual Reality Modeling Language) documents (with the file name extension .wrl) have been developed.Intel and software makers such as Adobe have announced support for new 3-D technologies.

Using high speed dedicated computers, Multi-million-dollar flight simulators built by Singer, RediFusion, and other have led the way in commercial application of Virtual Reality .Pilots of F-16s, Boeing 777s and Rockwell space shuttles have made many simulated dry runs before doing the real thing.At the Maine Maritime Academy and other merchant marine officer training schools,computer-controlled simulators teach the intricate loading and unloading of oil tankers and container ships.

   Specialized public game arcades have been built recently to offer Virtual Reality combat and flying experience for a price. For example, Battle Tech is a  ten-minute interactive video encounter with hostile robots, created by Virtual World Entertainment, and located in both California and Illinois. In couches in the same area called a Containment Bay. The computer keeps score in a fast and sweaty firefight. Similar “attractions” will bring Virtual Reality to the public, particularly a youthful public, with increasing presence in the marketplace.

   People who work in VR do not see themselves as part of “multimedia.” Virtual Reality deals with goggles and gloves and is still a research field where no authoring products are available, and you need a hell of a computer to develop the real-time 3-D graphics. Although there is a middle ground covered by such thing as Quick Time Virtual Reality and VRML (Virtual Reality Modeling Language) that gives multimedia developers a “window” into Virtual Reality, people often confuse multimedia and Virtual Reality  and want to create futuristic environments using multimedia-authoring tools not designed for that purpose.

Virtual Reality is an extension of multimedia and it uses the basic multimedia elements of imagery,sound and animation.Because it require instrumented feedback from a wired-up person, Virtual Reality is perhaps interactive multimedia at its fullest extension.

Multimedia in Schools

Schools are perhaps the destination most in need of multimedia.Many schools in  the United State today are chronically under funded and occasionally slow to adopt new technologies and it is here that the power of multimedia can be maximized for the greatest long term benefit to all.

   classroomIn the 1990s,the U.S. government challenged the telecommunications industry to connect every classroom,library,clinic and hospital in america to the information superhighway.Funded by telephone surcharges               (e Rate),most schools and libraries in America are now connected.Steps have also been taken to provide governmental support for state of the art technology in low-income rural and urban school districts,The National Grid for Learning (NGfL)  has established similar aims for schools in the United Kingdom.

   Multimedia will provoke radical changes in the teaching process during the coming decades,particularly as smart student discover they can go beyond the limits of traditional teaching method. There is indeed a move away from the transmission or passive learner model of learning to the experiential learning. In some instances teachers may become more like guides and mentors or facilitators of learning leading students along a learning path,rather than the more traditional role of being the primary providers of information and understanding.The students,not teachers,become the core of the teaching and learning process.This is a sensitive and highly politicized subject among educators,so educational software is often positioned as enriching the learning process,not as a potential substitute for traditional teacher based methods.

   An advanced electronic teaching tool prepared by Yale University School of Medicine. It provides physicians with over 100 case presentation and gives cardiologists, radiologists, medical student, and fellows an opportunity for in-depth learning of new clinical technique in nuclear cardiac per fusion imaging.

   An interesting use of multimedia in school involves the students themselves. Students can put together interactive magazines and they can even make Quick Time movie. They can also design and run web sites.

Technological literacy must become the standard . Preparing children for life time of computer use is just as essential today as teaching them the basics of reading, writing, and arithmetic.

   At one time, laser discs brought the greatest amount of multimedia to the classroom-in 1994, there were more than 20,500 educational titles available on laser disc for grades K-12, the majority aimed at science and social science curricula. Use of laser disc has been supplanted as schools have purchased more computers with CD-ROM and DVD players. And as school become part of the Internet, multimedia arrives by glass fiber and over a network.

    ITV (interactive TV) is widely used among campuses to join students from different location into one class with on teacher.Remote trucks containing computers,generators and a satellite dish can be dispatched to area where people want to learn  but have no computers or schools near them.In the online version of school,student can enroll at schools all over the world and interact with particular teacher and other students classes can be accessed at the convenience of the student,s lifestyle while the teacher may be relaxing on a beach and communicating via wireless system.For example ,offer classes to student who do not wish to spend gas money,fight traffic and compete for parking space they even provide training to professors so they can learn how best to present their classes online.

Uses of Multimedia

Uses of Multimedia :

Multimedia is appropriate whenever a human interface connects a human user to electronic information of any kind.Multimedia enhances minimalist,text only computer interface  and yields measurable benefit  by gaining and holding attention and interest in short,multimedia improve information retention.When it’s properly constructed,multimedia can also be profoundly entertaining as well as useful.Multimedia in Business,Multimedia in  Presentation,Multimedia in Classroom,Multimedia at home,Multimedia in Web Design,Multimedia in Medical,  Multimedia in Public Places,etc…

Multimedia in Business Presentation:

     Multimedia is a very effective presentation and sales tool.If you’re being driven somewhere in the back seat of a car,you may not remember how you got to your destination.If you had been driving the car yourself,chances are you could get there again.SMULTIMEDIA-PRESENTATIONtudies indicate that if you’re stimulated with audio,you will have about a 20 percent retention rate.With audio visual,retention is up to 30 percent and in interactive multimedia presentations,where you are really involved,the retention rate is as high as 60 percent.

     Business applications for multimedia include presentations,training,marketing,advertising,product  demos,simulations,database,catalogs,instant messaging and networked communications.Voice mail and video conferencing are provided on many local and wide area networks (LANs and WANs) using distributed networks and internet protocols.

After a morning of mind numbing overhead presentation delivered from the podium of a national sales conference, a multimedia presentation can make an audience come alive.Most presentation software packages let you add audio and video clips to the usual slide show of graphics and text material.

Multimedia is enjoying widespread use in training programs.Flight attendants learn to manage international terrorism and security through simulation.Drug enforcement agencies of the UN are trained using interactive videos and photographs to recognize likely hiding places on air planes and ship. Medical doctors and veterinarians can practice surgery methods via simulation prior to actual surgery.Mechanics learn to repair engines.Salespeople  learn about product lines and leave behind software to train their customers. Fighter pilots practice full terrain sorties before spooling up for the real thing.Increasingly easy to use authoring programs and media production tool even let workers on assembly lines create their own training program for use by their peers.

“Animated instructional and training multimedia can simulate the real thing, allowing trainees to actually turn valves and flip switches.”

     Multimedia around the office has also become more commonplace. Image capture hardware is used for building employee ID and badging database, for video annotation, and for real-time teleconferencing. Presentation documents attached to e-mail and video conferencing is widely available. Laptop computers and high-resolution projectors are commonplace for multimedia presentation on the road. Cell phones and personal digital assistance (PDAs) utilizing Bluetooth and Wi-Fi communication technology make communication and the pursuit of business more efficient.

  As businesses and companies catch onto the power of multimedia,tje cost of installing multimedia capability decreases meaning that more applications can be developed both in house and by third parties,which allow business to run more smoothly and effectively.These advances will change the very way business is transacted by affirming the use of multimedia that offers a significant contribution to the bottom line while also advertising the publish image of the business as an investor in technology.

Multimedia is a combination of digitally manipulated text,photographs, graphic art,sound,animation and video elements.When you allow an end user also known as the viewer of a multimedia project to control what and when the elements are delivered it is called interactive multimedia.When you provide a structure of linked elements through which the user can navigate, interactive multimedia becomes hypermedia.

     Although the definition of multimedia is a simple one making it work can be complicated.Not o12nly do you need to understand how to make each multimedia elements stand up and dance but you also need to know how to use multimedia into meaningful tapestries are called multimedia developers.

   The software vehicle, the messages, and the content presented on a computer, television screen, PDA (personal digital assistant) or cell phone together constitute a multimedia project. If the project is to be shipped or sold to consumers or end users, typically in a box or sleeve or delivered on the Internet, with or without instructions, it is a multimedia title. Your project may also be a page or site on the World Wide Web, where you can weave the elements of multimedia into documents with HTML (Hyper Markup Language) or DHTML (Dynamic Hypertext Markup Language) or XML (eXtensible Markup Language ) and play rich media files created in such programs as Adobe’s Flash, Live Motion  or Apple’s Quick Time by installing plug-ins into a browser application such as Internet Explorer or Firefox. Browsers are software program ao tools for viewing content on the Web.

     A multimedia project need not be interactive to be called multimedia user can sit back and watch it just as they do a movie or the television.In such cases a project is linear, or starting at the beginning and running through to the end.When user are give navigational becomes nonlinear and user interactive and is a powerful personal gateway to information.

   Determine how a user will interact with and navigate through the content of a project requires great animation to the message, the scripting or story-boarding  the artwork, and the programming. You can also lose the message in a project with inadequate or inaccurate content.

    Multimedia elements are typically sewn together into a project using authoring tools.These software tools are designed to manage individual multimedia elements and provide user interactive. Integrated multimedia is the weaving part of the multimedia definition where source documents such as montage,graphics,video cuts and sounds merge into a final presentation.In addition to providing a method for user to interact with the project most authoring tools also offer facilities for for creating and editing text and image and controls for playing back separate audio and video files that have created with editing tools designed for these media.The sum of what gets played back and how it is presented to the viewer on a monitor is the graphical user interface, or GUI (pronounced “gooey”). The graphical user interface is more than just the actual graphics on the screen it also often provides the rule or structure for the user’s input.The hardware and software that govern the limits of what can happen here are multimedia platform or environment.