MULTIMEDIA BASED DATA BASE PRESENTATION TOOL & M . K. Mohandas K. C . Shet ABSTRACT M ultim edia technology prom ises an exciting tool, to the library by providing an environm ental friendly system supporting different m edia, like audio,graphics, and text including anim ation on the sam e platform for efficient inform ation handling. The m ultim edia w orkstation, can be m ade to present various databases, to the view er alegantly by incorporating a m ultim edia presentation authoring tool. This authoring tool can have various m odules such as slide editor, slide integrator, audio studio,video studio, presentation player and installation m odules. This paper attem pts to describe the various m odules needed to have in a presentation authoring tool. Presently all these m odules are under developm ent in the D epartm ent of C om puter Engineering, K.R .E.C , Surathkal on M icrosoft W indow s 95 and M icrosoft Pow er Point environm ent. 1. INTRODUCTION goods how ever such as toys, garm ents, furniture and handicrafts are often not treated to the sam e extent. Further m any of the databases are biased, tend to M ultim edia is a technology that attem pts a focus on N orth Am erican and W est European harm onious realtim e integration of different m edia m arkets, although rnany databases providers are like im ages, full m otion, video, voice, text, graphics m aking efforts to diversity their geographical and other com puter data for enhanced m an-m achine coverage. interaction encom passing the audio-visual senses. This paper gives a brief introduction of a M ultim edia M ultim edia technology prom ises to radically alter our Presentation Authoring Tool (M PAT) w hich w ill allow library by providing an environm ent friendly system a developer to m ake state of art m ultim edia supporting different m edia like video, audio, graphics presentations. This authoring tool can help the user and text all on the sam e platform for efficient in m any w ays. A person sitting in one term inal can inform ation handling. run the tool from rem ote side and prepare presentations using it. This is an im portant advantage Today a w ide variety of resources ranging from because m ultim edia files (sound, video and business directories to encyclopedia are available in anim ation) occupy so m uch m em ory that it is difficult various form at either bibliographical or statistical or and im practical to take them in floppies. The user sim ply infotainm ent form .They include databases on w ould either have to take it in a high capacity catridge m athem atical operations, advanced w ord processing, or copy the presentation on video tape and take w ith legal search system s, corporate annual reports, him \her. business analysis, design tools for com plex design process, sim ulation, forecasting m odels, cash flow The M PAT is m ade up of six m odules. m odels, m arket research inform ation, foreign Slide Editor. m arketing aids, I R system s for books, technical Slide Integrator. reports, new s about gam es, stock m arket data and Audio Studio. m any m ore. Today a ;arge num ber of databases Video Studio. provide inform ation on given products and m arkets. Presentation Player. These have been developed by analysts w ho Installation M odule. system atically shift through a w ide range of periodlcals, reports and books in different languages. 2. SLIDE EDITOR: Though databases cover alm ost all subjects, how ever som e subject areas are relatively w ell This m odule is responsible for creating the slides covered by databases of this type epecially raw needed for presentation. This form s the first phase m aterials, chem icals and hitech products. C onsum er
ofdevelopm ent in the M PAT. Pow erpoint w ill be used, since the com pany em ployees are fam iliar w ith that softw are. For The Slide Editor w ill allow for tw o types of slides to exam ple, Blocks, fade out, fade in, spiraling etc., The be created. developer m ay also choose w hether the next slide w ill appear on user interrupt only (like a m ouse click) a. N on-anim ated slides or after a specified am ount oftim e. Paths to the earlier b. Anim ated slides slide w ill also be provided, and since the first version of the package w ill allow only a linear flow , this w ill be the only interactivity allow ed. An extension to the a. N on-anim ated slides: softw are m ay be to allow the user to go to an arbitrary slide (identified by either nam e or num ber of the slide) Inthis case, each slide w ill consist of a series of text w hile keeping the linear flow of the presentation. orsaved im ages. The m axim um m ovem ent allow ed in this C ase is the m ovem ent of text across the W hile m aking the presentation, a developer w ill w ant screen. There are various m ethods allow ed for the to preview the presentation. A special preview option m ovem ent of text-special effects like fail from left, w ill provide this functionality, and thus help in fine fallfrom right, etc., used for fading-in and fading-out tuning of presentations. oftext. In this case, each fram e constitutes one slide. b. A nim ated slides: 4. AU D IO STU D IO Thisfeature allow s for anim ation-w here each object This m odule can be run independently or can be canbe associated w ith m ovem ent along a given path. called from The inputs w ill be the starting position of the im age, w ithin the slide Editor. It is im plem ented as an object. theending position and the num ber of fram es in w hich It supports 3 types of sound. to achieve the anim ation. In this case, several fram es constitute one slide. a. D igital Audio (.W AV) files. The Audio Studio provides for m anipulating the. W AV 3.SLID E IN TEG R ATO R files. Each .W AV file w ill be an object. The object w ill have the follow ing functions built into it, This m odule w ill be instrum ental in integrating all the slides together. O nce all the slides 'are m ade to play the file. individually using the slide editor (or from a predefined to give a graphical display of the file library) , they have to be linked together into a single to cut a specified part of the file and copy it presentation. To do this, it has been decided that all to the clipboard the slides w ill be stored in a standard form at, w hich to paste m ix one .w av file w ith another. This standardises the procedure for loading a slide. To facility w ill allow the user to m ix tw o .w av interate them thus, w e w ill need another file form at files. 10 hold the integrated presentation. The authoring of to change the sam pling rate and the num ber the slides w ill be done in a visual m anner, w here a of bitss used in sam pling of the file. flow chart based path w ill describe the m otion of To creat a sound file by recording sound from presentation. Each slide w ill be node in the flow -chart, m ike. and successive slides w ill be connected w ith a flow O ther features like rap, insert silence, etc., can be path betw een them . D rag and drop functionality w ill allow a developer to change the sequence of slides provided later as extension of the softw are. w ithin the presentation. b. M ID I (M usical Instrum ent D igital Interface). Another im portant feature that w ill be present in the The audio Studio provides the facility to playa .M ID softw are, w ill be the ability to describe a single file. It also allow s create a .M ID file by recording background sound file, w hich w ill run throughout the from a m usical instrum ent. presentation, im m aterial of w hich slide is being played. This file w ill usually be a .M ID file, since long W AV files are too big in size to be practically used c. C D player. as background audio. The Audio Studio has a built-in C D player. This C D To describe how a slide phases in and out of the player gives the follow ing facilities, presentation, one of m any options m ay be chosen. A subset of the options allow ed by M icrosoft
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